Th350 Gear Ratio

All you need is a 1/2" socket and the gear is in your hand in 30 seconds. Differential Ratio (Rear End Gear): RPM: Transmission Gear Ratio's (1st-6th): Known Gears for TH350 + Gear Vendors TH400 + Gear Vendors TH350 TH400 T56 BW-T5 BW-T5(Close_Ratio) BW-T10(2nd_Design1) BW-T10(2nd_Design2) BW-T10(2nd_Design3) BW-T56 Muncie(M-21,M-22) Muncie(M-20) Powerglide 200-R4 700-R4 4L80E. With a small 7-5/8" ring gear and a high 4. TH350 -- 35hp 700r4 -- 70hp 727 -- 40hp 904 -- 35hp E4OD -- 65hp If you have corrections, or gear ratios for other rear-wheel drive transmissions, please e-mail me with the info. Includes 2:52 1st gear, 1:52 2nd gear, extra wide direct drum bushing, machined forward and direct pistons, new kickdown band with welded anchors, new intermediate and low roller clutches, all new B&M high performance friction plates, thrust bearings and races, new adjustable modulator, detent control link with new breather and filter. 94:1 (66/34=1. Largest Main Shaft in the Industry. Everything else in the transmission is there to help the planetary gearset do its thing. In my stock 80 LWB C10 350 3spd auto th350, the stock rear end is a 2. All Original Metal Beautiful White Paint Job Nice. To check your wheel diameter go the bottom of this page. This extremely stout gear set features new E9310 gears (eight pieces), a new forged ring gear a new forged planetary housing, 9310 pins, and new washers and needle. Please check to be sure your kickdown cable uses a boot type seal, not an oring. Solenoid Knob has 6 Settings to adjust the amount of fluid the Solenoid will dump when activated. 0 for 3rd gear. If you are changing the rear gear ratio, you will notice that the speedometer will not indicate the true speed. List of GM transmissions; References. In this video Paul covers how to determine how many teeth are on a speedo gear, and what gear is right for your application. Eventually, in 1990, the 200-4R was phased out for the 700R4, and later iterations of the same transmission including the 4L60 and 4L60-E. The shift from 3. PATC 90 degree angle ratio adapter 1 to 1. Work from the back towards the frontFind revolutions per mile of your tire size, multiply that by your gear ratio to give you drive line revolutions per mile. The size of rear tires and the transmission used will change the gear ratio needs. A very easy job in about 30 minutes of time. After much research, CRG is pleased to publish a comprehensive list of 67-69 Camaro axle codes. TH350 -- 35hp 700r4 -- 70hp 727 -- 40hp 904 -- 35hp E4OD -- 65hp If you have corrections, or gear ratios for other rear-wheel drive transmissions, please e-mail me with the info. Aug 07, 2010 · I run a TH350 behind a 4. This basic design and. 12 by your Jeeps tire diameter (Example:. 3Vortec in my '37 Terraplane with 3. Each housing comes with all necessary seals for a leak-free installation. This is one of the identifiable traits of the NP205. Changing to a Tremec TKO 500 manual transmission—which has a 3. This can convert your TH350 into an effective 6-speed automatic by overdriving each forward gear. 63 to a “close ratio” 2. Find Tranmission and Drivetrain Parts For Sale Online. Allison ® 6-Speed Swap. TH400's are what we cut our teeth on. What I heard was wrong TH350 1st gear is accually bit lower in ratio, and takes less power out of engine, sounds a bit better for drag racing. You can also now calculate when using different transmission gear ratios, like in first gear or in overdrive. 48 first, 1. 52 first, 1. Gear Ratios and Tire Sizes How do I determine what ratios I have? Table of most common Toyota Crawl Ratios Toyota 4WD First Gear Transmission Ratios Close this window. 75 I didn't realize it but PATC has them too. The following are some of the transmissions that I feel are worth considering when performing an engine swap in a M37 or similar vehicle. 42 comparing to 4. Construction and Size The Turbo 350 transmission was a single piece transmission with the bell housing integrated into the transmission body. The program will compute the best driven gear given a particular drive gear, or the best drive gear given the driven gear value. 52:1, and 3rd Gear – 1. 56, but being a 4cyl I would strongly consider bumping up to the 4. The NP205 case is one piece of cast iron. 1981 Corvette Specifications - 1981 Corvette Spec Sheet TheVetteNet. The NP205 case is one piece of cast iron. 5” converter, the overall requirement is around 10 quarts. With a small 7-5/8" ring gear and a high 4. What are specs for a 350 engine to a 700r4 toque converter to flexplate ? I’ve heard 45ft lb & 65 ft lb. Choose your rear axle gear ratio: Speedometer Gear Selection Select your transmission drive gear tooth count: 6 Teeth 7 Teeth 8 Teeth 9 Teeth 10 Teeth 11 Teeth 12 Teeth 13 Teeth 14 Teeth 15 Teeth 16 Teeth 17 Teeth 18 Teeth 19 Teeth 20 Teeth 21 Teeth 22 Teeth. To calculate your speedometer difference enter the information for the old tire size, new tire size, old gear ratio, new gear ratio and speed reading. 50:1 gears and it works great. TH350 Speedometer Gears. transmission application gm auto pg, th350, 400, 700r4, chevy or bop bolt pattern*. 02 first gear in the 6L80 tranny. We stock a massive inventory of production Pontiac blocks, heads and crankshafts, to accommodate ALL your stock, street and strip needs. Ratio & Center Distance. Aug 03, 2006 · the 203 is not gear driven, it is chain drive. Gearing is what you are buying when you purchase a Gear Vendors Under/Overdrive. This gear set upgrades the C6 to wide ratio specifications changing the first gear ratio from 2. While a vehicle with 4. The cost to replace the rear gear could also outweigh the cost of just replacing the trans. TH350 TH350 Competition Components. This calculator is designed to give the potential speed values of a vehicle, based on the RPM of the engine, the ring gear and pinion gear ration, the final transmission gear ration (usually 1. Save yourself the headache and let us figure out your ring-and-pinion gear ratio! Select the value you want to solve for. A new speedo drive clip is included. These examples don't take into account any torque multiplication may be occurring through the torque converter, they are just to illustrate the numerical gear multiplication. Speedometer Gears from PATC. com and Wayne Clayton. The NP205 is a single piece cast iron case with helical gear driven transfer case with a 1. As the chart illustrates, the TH200-4R uses a 2. 12 X 38" = 4. The Dual Range is also priced $500-$800 less than the competitors. The 68 test fleet cars have a unique engine suffix code, EN, and the TH350 should have a date stamp that corresponds to the build date of the car. Perfect for low 11 to mid 9 second Turbo Buicks,as well as all small and big block Buick,Cadillac,Chevrolet,Oldsmobile and Pontiac vehicles. This new feature effectively makes the transmission a two speed and moves the starting gear ratio to a much higher range than available in any powerglide. All materials, both visual and written, are property of RACE-TRACK. General Talk. Everyone is accustomed to Overdrive transmissions so when getting behind the wheel of something without an OD the engine sounds like it’s screaming. 55 to one, 3. There are two driven gear housings, one for 34 through 39 tooth driven gears and one for 40 through 45 tooth driven gears. The kit includes TH350 to NP205 replacement adapter, seals, o-ring, NP205 gasket and adapter instructions. The TH350 transmission was introduced in the 1969 model year as the successor to the GM Powerglide automatic transmission. com (DBA Jam Performance Transmissions) which is a transmission company that builds and sells Tremec 5 and 6 speed transmission conversion kits. 35 parasitic loss you get worse MPG TH350. Meanwhile, the TH400 is nearly bulletproof and has better gear ratios for higher-powered cars. hey guys just wondering what you guys would think the best gear ratio would be for gas/ and just cruise i like some acceleration and speed also. Determine your engine's RPM based on the transmission gear ratio, tire height, MPH and the ratio of your ring gear and pinion gear. Each clutch is applied hydraulically and released by several small coil springs. Transmission Gear Ratio Chart ~ Gear Ratios are listed for many popular transmissions. Heartbeat City stocks a full line of NOS Camaro Parts, Rare Camaro Parts, Old Camaro Parts, Reproduction Camaro Parts and hard to find Used Camaro parts for your first generation 1967, 1968, 1969 camaro. Find Speedometer Cable Adapters and get Free Shipping on Orders Over $99 at Summit Racing!. After you enter your vehicles tire size (using either a measured tire height or entering your tires P-Metric information) plus your vehicles rear end ratio, this calculator will display a chart indicating the speedometer gear set combination needed for an accurate speedometer reading in your vehicle. The 350 transmission is 21-3/4″ long and its one-piece case is cast of aluminum alloy. There is NO upcharge for a weird combination at all! Since our adapters bolt together, if you require changing a transfer case in the future (ie. The NP205 is a single piece cast iron case with helical gear driven transfer case with a 1. You will notice a big difference. The gear ratios used for this transmission were 2. I bought th350 for my car and was wondering what rear end gear would be best for me and also would converter would be right? the car weights 3200lbs with me in it. The 6L80E has a gear ratio spread of 4. When you lift your 4x4 truck you consider your options for lowering the overall gear ratio. If you objectively consider the tranny and axle ratio and just how quickly first gear is over I think you will find you gut instinct to want more axle gear to be a bit outdated. 5 10 Bolt Eaton Style Clutch Posi UnitGM 8. 00 3300 3800 245/50r17 diameter is 26. 36 rear axle gear ratio coupled with the 3. El Camino Center Console Kit, For Cars With Turbo Hydra-matic Th350 Or Th400. Animal Performance Custom Built Transmissions Home of The Revenger, Beast and Dominator Builds 30+ Years Experience Street and Strip offroad Monster Truck 700R4 Beast 2. Also, for further gear choices, you could swap transmissions. 48:1 - 2nd 1. If you have a spare third member (also called a center section or pumpkin), you simply pull the axles, swap the center section, and reassemble. It is a very HD wide ratio gear box that was never meant to be shifted quickly (it could live in a school bus for many years) as there is a lot of ma$$ in gears and iders shafts for beef and the wide gear ratios means a very large RPM difference between gears when you tach it up to 5000 RPM and you are not going to synchronize gear. 00 as this is the typical 4th gear ratio of most 4 sp and 5 sp manual transmissions. Why the T-56, a wide ratio. Jan 09, 2018 · Similar in build to the TH350, the 200-4R proved to be a great update to the outdated 3-speed transmission in builds where an overdrive gear was a must. Beginning in 1994, all T56 cars used the same ratio gear set regardless of rear axle ratio. These street/strip transmissions are exact bolt-in replacements for your stock transmission and have all the heavy-duty features described above. First of all, the TCI 4L80E Street Fighter has a better gear ratio spread. I plan on later in the year to either rebuild the stock 350 or get a replacement with at least 350hp. 90:1, and installed 26-inch tall tires. what you need to know is the FINAL ratio, you find this by taking tranny gear X rear gear. The close ratio gear box,gives you a fairly high first gear,with the rest of the gears fairly close together,for less rpm drop on your top end. The NP205 originally coupled to a TH350 has a male 27 spline input. 70:1 overdrive gear are still present in it with minimum changes. 50:1 gears and it works great. Gear Ratio and Tire Size Chart NEXT PAGE This gear ratio and tire diameter chart is meant to give you an approximation of ideal RPMs at highway speed (65 mph) for three situations: fuel economy, every day driving and increased towing power. You will have a full 6 forward ratios and torque multiplication that will have even taller rear gears like 3. Just tell him what you want to accomplish. Note: The mounting pad is usually a part of the extension housing, but the graphic shows it on the maine case. 67-72 RPO Codes (Regular production options) This list is exclusive to 67-72 chevy and GMC trucks but if you find that an option is missing drop me a line and I will get it added. Highlighting lots of olds pontiac on sale. To determine the correct gear ratio of the speedometer for your car, use the following formula to calculate the number of teeth on the driven gear (round to the nearest available gear): Use the following formula to calculate "tire revolutions per mile" for the formula above: With 15 Tooth Drive Gear. It would likely use a 3,200 to 3,500 stall converter to get the best performance. CONTACT US WHEN READY TO BUY, SELL, LEASE, TRADE OR SHIP A CORVETTE 866-838-8363 - 866-VETTENET. 63 ratio (2nd gear) is a dramatic RPM drop that causes performance engines to fall out of their power band. It has a distinctive oil pan that is chamfered at the passenger side, rear corner. It features an integral bellhousing. One can multiply an automatic transmission's low gear by a factor of 1. It uses much the same gear ratios as the close-ratio M-21, but it can handle much more abuse. 94:1 (66/34=1. Since the gear tooth pitch is slightly different than OE, the service life of this gear is limited to less than 25,000 miles. 74:1 First-gear ratio which is deeper than a TH350's ratio but not as deep as the TH700-R4's 3. The gear ratio is the relationship between the number of turns made by a driving gear to complete one full turn of said gear. Apr 05, 2009 · i am looking at a 1976 k20 4x4 longbed, it has a 350 c. You can run more gear with a taller tire. The TH350 is an automatic shift, three-speed transmission. Sep 19, 2016 · It’s running a 383 engine with 10. The staff has been amazing to work with and takes care of their customers better than any other company I have ever dealt with. Nothing special, just something to get the car down the road until I can afford to build something with a bit more oomph. 00 I still run that tranny, just in front of the 455 now, and with 3. Jul 20, 2011 · You can run more gear with a taller tire. If anyone has any experience or thoughts on this, please let me know. Tire size, gear ratio, mph and rpm weave an intricate pattern of performance. Choose your rear axle gear ratio: Speedometer Gear Selection Select your transmission drive gear tooth count: 6 Teeth 7 Teeth 8 Teeth 9 Teeth 10 Teeth 11 Teeth 12 Teeth 13 Teeth 14 Teeth 15 Teeth 16 Teeth 17 Teeth 18 Teeth 19 Teeth 20 Teeth 21 Teeth 22 Teeth. They are available with four different gear ratio combinations with low range options down to. Buick called this transmission a Super Turbine 400 from 1964-68. Installation of the correct ring and pinion gear ratio will help optimize performance, fuel economy and overall driveability. 52:1, and 3rd Gear – 1. Transfer Case. Shop ford in stock and ready for shipping now online. TH700-R4's rear mount is 2" to the rear of that of the TH350 short tail. It can also be used in lighter vehicles at power levels up to 800 hp and 800lbs. The front accomplishes 1. -GM made a version of their TH350 with a "universal" belhousing with both bolt patterns cast in I don't know about other trannies with this feature but SOME 80's TH-350's did use the universal feature - hard to find since they get snatched up by rebuilders - they can sell them to anyone!. 23 Tooth Sprocket And Chain Kit Fits Harley Davidson Knucklehead El Fl 19-0272. DYNAMIC builds the very best racing automatic transmissions anywhere! Click a product below for details. Standard Axle Ratio Table Below is a list of the standard gear ratios installed in Novas if a specific ratio was not ordered optionally. 54:1 for a brutal increase in torque multiplication for faster acceleration in first and second gears. Gear, Shift Point and Speed Calculator This is a gear, speed and shift point calculator. Camaro Transmission And Driveline, Camaro Automatic Transmissions And Camaro Speedometer Gears And Sensors Camaro Speedometer Driven Gear, Blue, With 20 Teeth. TH350 Hard Parts. Stall Torque Ratio 2. Largest Main Shaft in the Industry. What this does for the enthusiast is allows higher stall speeds to be used for acceleration without causing slippage and excessive heat build up when cruising just like the overdrive GM transmissions use. Please contact us to confirm correct vehicle fitment and usage. The 68 test fleet cars have a unique engine suffix code, EN, and the TH350 should have a date stamp that corresponds to the build date of the car. 4 ratio to attempt to improve the gear ratio with my 35" tyres. If you are looking for help with restoring or hot rodding your chevy classic a good place to go for help is Chevy Talk my favorite forum is 1955-1957 ( Modified / pro street / show) forum. Use our Differential Gear Ratio Calculator page to determine the best ring and pinion gear ratio for your vehicle. 810 diameter gears must be used with a 1. Placing the example numbers in the corresponding fields you will get a Tire Height of 27. Vehicle internal parts structure diagram - Anatomy Note Shopping For Cars? Car Repair Advice And Discount Accessories. I bought th350 for my car and was wondering what rear end gear would be best for me and also would converter would be right? the car weights 3200lbs with me in it. Tire size, gear ratio, mph and rpm weave an intricate pattern of performance. Novas with A/C got the same ratio as those without A/C unless otherwise noted. 73:1 ring-and-pinion ratio and 27-inch diameter rear tires. 43:1 (Close ratio). This gear set upgrades the C6 to wide ratio specifications changing the first gear ratio from 2. Aug 03, 2006 · the 203 is not gear driven, it is chain drive. Largest Main Shaft in the Industry. If anyone has any experience or thoughts on this, please let me know. Our "stock" rebuild is strong enough for over 600 HP repeatedly yet functions like a stock transmission. Placing the example numbers in the corresponding fields you will get a Tire Height of 27. Widest variety of transmission kit and many relevant items. We have 6L80E Transmissions in stock and free shipping. of 2002 by Brad Wedan at the age of 18 years old. Animal Performance Custom Built Transmissions Home of The Revenger, Beast and Dominator Builds 30+ Years Experience Street and Strip offroad Monster Truck 700R4 Beast 2. All of our 2004R transmissions are dynomometer tested and then in car tested and calibrated prior to. 7 inches, rear gear of 3. 9 goal with those gears unless I have a tall tire, I might run a 28" tall tire to see if I gain MPH. If these 2 steps are not followed, the sizing chart will print to the wrong scale and you will not be able to acquire the correct size you need. 63 ratio (2nd gear) is a dramatic RPM drop that causes performance engines to fall out of their power band. TH350 Speedometer Drive Gears $ 12. Options "Special note" - The TH-200 is now available as a retrofit to use with either a TH350, TH400 or Powerglide converters with no modifications. by Mark DeConti. If you have a spare third member (also called a center section or pumpkin), you simply pull the axles, swap the center section, and reassemble. Aug 07, 2010 · I run a TH350 behind a 4. You can also now calculate when using different transmission gear ratios, like in first gear or in overdrive. 5” tall rear tires, 3:73 rear gears and 1:1 3 rd gear TH350 auto. Switching to a 45-tooth driven gear (the most teeth available) would translate to the vehicle traveling at 78 percent of indicated speed - close but not perfect. Browse 18 ratio adjustable stainless available for purchase now. I don't know a whole lot about differentials and gear ratios and how one would go about choosing the right ratio for their application. 84 Ratio 1st Gear Racing Transmission 1100+ HP !. 90 rearend gear ratios falling in the 3-Series, and 4. Given a few bits of information on your drivetrain and tires it will computer shift points, max RPM. History repeats itself when it comes to the. The low-range box serves only to reduce the gear ratio, while. Nov 30, 2019 · Originally Posted by Rexenator This is more of me thinking out loud than actually considering this option right now. A list of the 4x4 gear ratios used in popular transfer cases and transmissions. In addition to the ring and pinion gear ratio in the axles you may consider other options for your transfer case and transmission. Maybe the following example will help you make sense of this. Trans Ratio 1st: Trans Ratio 2nd: Trans Ratio 3rd: Trans Ratio 4th: Trans Ratio 5th: Trans Ratio 6th: Trans Ratio 7th:. Of course, a high-performance torque converter matched to the engines power curve, the cars weight and its rear gear ratio will also make a positive difference in the performance of your TH350. All the while i was thinking for a daily driver or street driven car higher was always better. The General Motors Turbo 350 and Turbo 400 automatic transmissions are perhaps the automaker's most popular ever produced. TH350 Automatic Transmissions in-stock with same-day shipping. 23 rear diff ratio with a GV installed to get close to the highway rpm's I get now. 8 has a 4:10 gear with a 27" tire. Engine RPM, or the speed at which the engine turns, can be calculated at any speed given the vehicle's tire size, axle ratio, and final transmission gear ratio. You need one that shifts positively into each gear, especially at wide open throttle. The speedo gear combination for a 2. 10:1 Gear Ratio Dana 44 Front End 4. Add to cart. How’s it work…Easy, just drive at an indicated 50mph while measuring true speed with a cell phone GPS or other device, send us the true speed and we’ll calculate the correction ratio, gear the adaptor correctly and send it off to you. We have extensive experience building the TH400 for all types of applications. Before buying a new converter, do consider all variables, such as tire size, gear ratio, expected quarter-mile speed, maximum engine rpm (both physical and where the power begins to drop sharply), engine vacuum at idle and engine torque at low rpm. Showcasing a lot of rear differential available on sale today!. 8 ford rear end with a 3. 5 10 Bolt Eaton Style Clutch Posi UnitGM 8. Use our Differential Gear Ratio Calculator page to determine the best ring and pinion gear ratio for your vehicle. 10s in the axle due to the 4. You need to know your rear end gear ratio. 08 rear end (or even numericly lower) for a lower cruising speed. We stock a massive inventory of production Pontiac blocks, heads and crankshafts, to accommodate ALL your stock, street and strip needs. Shop rear differential for sale right now. Jul 20, 2011 · You can run more gear with a taller tire. Included with each cross-member is a new Energy Suspension polyurethane transmission mount and all Grade 8 mounting hardware. The speedo gear combination for a 2. Numbers are good but gear ratios on paper are nowhere close to realistic when you actually drive the Jeep with all the variables the world throws at it. 52 second and 1. nz First Gear Ratio. The close ratio gear box,gives you a fairly high first gear,with the rest of the gears fairly close together,for less rpm drop on your top end. 4x gears (i'm thinking with my cam maybe 3. The ratio is calculated by multiplying your transmission, transfer case, and ring and pinion gear ratios. 98 combined gear ratio will make even a smog motor small block Chevy feel good. , Tehachapi, CA 93561 - 661-822-8209 - [email protected] 56 gear or so. As the chart illustrates, the TH200-4R uses a 2. Buick Switch Pitch Transmissions. The TH350 gears are from First to Reverse: 2. 54:1 for a brutal increase in torque multiplication for faster acceleration in first and second gears. The 700R4 goes from a 3. You will not find a better calculator. Use our simple Gear Ratio Calculator to quickly find the correct gear ratio for your ring and pinion gear set. 810 22 tooth grey dimension -1. Im just worried about it being a dog off the line with a 28" tire and a TH350 with a 3500 converter. Reasonable prices for Ford. TH200 Transmission. A commonly overlooked component of a vehicle’s drivetrain that has a large effect on fuel economy is rear end gearing. Just download and run it in Excel. With high performance cam. The engine that I have for it is a slightly built 350 with a nothing special TH350 trans. Apr 05, 2009 · i am looking at a 1976 k20 4x4 longbed, it has a 350 c. 3 increase (MPG wise) of gear ratio over the Th350 in high gear. Car and Truck Engines and Parts. My plans are to update to a 350 and 700r4 someday and figure I should look for the best ratio for the daily driver routine in this work truck for best gas mileage. I bought th350 for my car and was wondering what rear end gear would be best for me and also would converter would be right? the car weights 3200lbs with me in it. :-\ I guess it will be some time before I get my hands on a set. 69-86 1 TH350. 3:1 while the rear accomplishes 1. Vehicle internal parts structure diagram - Anatomy Note Shopping For Cars? Car Repair Advice And Discount Accessories. The only real gain that I see is,if it can be considered a positive, the shorter gear makes it easier to brake the rear tires loose. You need one that shifts positively into each gear, especially at wide open throttle. There is NO upcharge for a weird combination at all! Since our adapters bolt together, if you require changing a transfer case in the future (ie. Turbo-Hydramatic or Turbo Hydra-Matic is the registered tradename for a family of automatic transmissions developed and produced by General Motors. 00:1 - 3rd TH350 and TH400 Performance Transmission Whether you have a stock engine or one that’s built-to-the-hilt, you don’t want to have an automatic transmission that just slides into gear. The NP205 case is one piece of cast iron. Also, for further gear choices, you could swap transmissions. Replace a TH350 with a 700R4 You may have to change your rear end ratio for the best result. Determine your engine's RPM based on the transmission gear ratio, tire height, MPH and the ratio of your ring gear and pinion gear. Show Full Signature. 7 inches, rear gear of 3. 55 for game-changing acceleration on the track. 18 Ratios These Specialty Ratio gear sets are for SB cars only, lightweight cars such as dragsters, or low torque, high RPM combination cars. I've propounded in another drivetrain thread a few months ago that concerning the gears, a better indicator of gear stress isn't ring gear diameter, but pinion gear diameter. Nov 30, 2019 · Rearend Gear Ratio for TKO-600 Pontiac - Street. A good way to calculate this is to multiply. While this can be corrected with an aftermarket ratio adapter,. A T5 with a cable style speedometer output has a plastic gear on the output shaft called the DRIVE GEAR. Shop TH350 Automatic Transmissions and get Free Shipping on orders over $99 at Speedway Motors, the Racing and Rodding Specialists. 87 Final gear. All you need is a 1/2" socket and the gear is in your hand in 30 seconds. 48:1 - 1st 1. The numbers entered in the program are the integer number of teeth - just count 'em up. Of course, a high-performance torque converter matched to the engines power curve, the cars weight and its rear gear ratio will also make a positive difference in the performance of your TH350. Add to cart. 1990 to 1993 the stock Ford production V-8 WC T-5 was upgraded with stronger 3. Gear Star offers three power-output stages for refurbished TH350 transmissions, ranging from 400 hp/400 ft-lbs of torque to 500 hp/450 ft-lbs of torque to 700 hp/550 ft-lbs of torque. com (DBA Jam Performance Transmissions) which is a transmission company that builds and sells Tremec 5 and 6 speed transmission conversion kits. If you install the Turbo Hydro trans, you could easilly switch to a 3. The Gear Box Transmissions, LLC. 11 ratio gear set, quick release pro tree transbrake valve body, 9310 Chromoly input shaft choice of turbo or powerglide spline, 8 clutch high gear drum with wide steel hub, Kevlar band, Torrington roller bearing, deep aluminum pan, rollerized billet aluminum governor support, billet aluminum. Replacing a TH350 with a 700R4 Classic 67-72 Chevy/GMC Truck Message Board Replacing a TH350 with a 700R4. 91:1 final drive ratios. maybe I'm missing something, but if my math comes out right a 700r4 with the overdrive shouldn't produce as good MPG as a 1:0. i was just thinking about this--the 3. That is why you. TH350 and TH200-4R use the same yoke. If you want to download pdf Th350 assembly manual , then you have come on to loyal site. 05-11-2006, 11:32 PM #6. That depends on tire height, gear ratio in the rear, and final drive ratio in the trans. Similar in build to the TH350, the 200-4R proved to be a great update to the outdated 3-speed transmission in builds where an overdrive gear was a must. The 1981-87 version was called 200C and had an electronically controlled lock-up torque converter. This is not meant to be an exhaustive chart and it and the brief descriptions underneath are culled from various sources on the internet. 3 speed transmissions are 1:1 in high gear. As said by others, you may want to look at swapping the TH350 with a 700R4. I don't believe I can achieve my 10. 52 second and 1. 64:1 (Wide ratio) HW = 2. You will notice a big difference. OER Parts offers a wide selection of All Makes parts, including All Makes interior parts and soft trim, All Makes exterior sheet metal, All Makes moldings, All Makes emblems, All Makes weatherstrip and unique accessories, to nearly every nut and bolt needed for installation. 1981 Corvette Specifications - 1981 Corvette Spec Sheet TheVetteNet. Transfer Case. 1) Gear Ratio 2) Tire Size (possibly include type of tire as weight can effect decision) 3) Tranny Type 4) Optional if known- Gas Mileage This is also a very helpful link that is overlooked. It would be very helpful to know either how much torque these trannys were designed for or what GM engines they were used with. Hughes Performance is proud to present its all billet planetary gear set for aluminum Powerglides — with a 1. 62 1-2 shift, which is way more aggressive than the Turbo 350's 2. The transmission ratios in a 700R4 are different than a Turbo350, not to mention you lost a 4th gear when doing the swap. Most street driven 6 speeds and even alot of those track driven can't properly utilize all the gears and I myself am a fan of the 5 speed over the 6 speed and would only go to the 6 if I needed another gear. OER Parts offers a wide selection of All Makes parts, including All Makes interior parts and soft trim, All Makes exterior sheet metal, All Makes moldings, All Makes emblems, All Makes weatherstrip and unique accessories, to nearly every nut and bolt needed for installation. Shop 17 tooth gear now! Shop 17 Tooth Gear on sale from Ebay. The TH350 uses the standard gear ratios of 2. This extremely stout gear set features new E9310 gears (eight pieces), a new forged ring gear a new forged planetary housing, 9310 pins, and new washers and needle. The 68 test fleet cars have a unique engine suffix code, EN, and the TH350 should have a date stamp that corresponds to the build date of the car. the car will be driven in town 90% and raced at track 10%, fuel economy is not a concern. 43:1 (Close ratio). i'm just looking for gear that will run me down the 1320 quickly and a street friendly stall. This calculator is designed to give the potential speed values of a vehicle, based on the RPM of the engine, the ring gear and pinion gear ration, the final transmission gear ration (usually 1. com - © 2016 Scott McClay Engineering. 10 rear end gears. Chevrolet Transmission Dimensions Dimension "C" is the distance from the bellhousing to the center of the transmission mounting pad. Before buying a new converter, do consider all variables, such as tire size, gear ratio, expected quarter-mile speed, maximum engine rpm (both physical and where the power begins to drop sharply), engine vacuum at idle and engine torque at low rpm.