700r4 speedometer gear chart

Speedometer drive gear, comes in 15, 17, 18 or 19 tooth. (From left to right: 15 Tooth | 17 Tooth | 18 Tooth | 19 Tooth) Speedometer Calculator, Click Here Main Speedometer Gear Page CLICK HERE Speedometer …

Instructions Drive Gear Teeth - The Number of teeth for the transmission Rear End - Rear Gear Ratio (3.89, 3.08, 4.11, etc.) Tire Height - Please use Inches when measuring Speedo Revolutions Per Mile - The number of RPM's the speedometer needs to turn at 60mph Speedometer Gear Calculator Drive Gear Teeth Rear End Gear Ratio Tire Height (Inches)TCI 880018 GM 700R4 15 Tooth Speedo Drive Gear. Visit the TCI Store. 7 ratings. $3195. FREE Returns. This fits your . Make sure this fits by entering your model number. This product is a Speedometer Drive Gear GM 15 Tooth Grey. Easy to install and good quality accessories for your vehicles.Shop 700R4, Speedometer Drive Gears and get Free Shipping on orders over $149 at Speedway Motors, the Racing and Rodding Specialists. 700R4, Speedometer Drive Gears in-stock with same-day shipping. Talk to the experts. Call 800.979.0122, 7am-10pm, everyday. GIFT CARDS. DEALS. TRACK ORDER. HELP CENTER. Shop. Parts. Learn. …You need a 25% bigger driven gear "if" is available. Pull yours out, count the teeth, add 25%, and check availability. Such as; If 20 teeth x .25 = 5, look for a 25 tooth gear. Ok, I pulled the speedometer gear out of the transmission. I have an 18 tooth drive gear ( blue ) and a 38 tooth driven gear.Instructions This calculator provides the necessary information needed in order to determine what transmission speedometer gear is needed in order to properly calibrate a speedometer. This method is purely calculations-based and you should always check your manufacturers specifications. Find Speedometer Gears Driven Speedometer Gear Type, THM700-R4/4L60/MD8 Transmission Model and get Free Shipping on Orders Over $109 at Summit Racing! ... Speedometer Gear, Driven 20-Tooth, Nylon, Blue, GM, 700R4, TH200, TH250, TH400, Each. Part Number: ADO-3987920. 4.0 out of 5 stars. Estimated Ship Date: Today. …

Drive Gear Teeth - Number of teeth on the transmission side of things Rear End Ratio - Rear Gear Ratio (3.89, 3.08, 4.11, etc.) Tire Height - In Inches, Use The Gear Calculator or Tire Size Calculator Speedo Revs/Mile - Number of RPM the speedometer needs to turn at 60mph You can hit the SAMPLE button to see how some typical calculations will look.Find Parts and Accessories 700r4 speedometer gear KEYWORD and get Free Shipping on Orders Over $109 at Summit Racing! $5 Off Your $100 Mobile App Purchase ... Speedometer Gear, Driven, 43-Tooth, Dark Blue, Style H, GM, 125, 200-4R, TH200, 350, 375, 400, 425, 700R4, Each. Part Number: TCI-880031.One fits gears from 34 - 39 teeth and the second one fits gears from 40 - 45 teeth. TH400 Speedometer Gears 15 teeth - brown or gray* 18 teeth - (truck) code H 19 teeth - (truck) code J 20 teeth - (truck) code K 21 teeth - (truck) code L 22 teeth - (truck) code MSee all 19 photos 19 photos A TH350-BOP/700-R4/TH400 uses the same large driven gears (right). Smaller Chevy TH350 driven gears (left) interchange with many GM manual trannys. Chevy TH350s could ...LA Speedometer Gear 700r4 and BOP TH350 retainer, clip, 40-45 tooth driven gears, 17 tooth drive gear, and 2" housing. 5.0 out of 5 stars 1. $95.00 $ 95. 00. FREE delivery Jul 20 - 24 . Or fastest delivery Fri, Jul 21 . Only 2 left in stock - order soon. 700R4 4L60 44 Tooth Electronic Electric Speedo Driven Gear Speedometer.TCI GM Speedometer Gears 880018. Speedometer Gear, Drive, 15-Tooth, Olive Green, GM 700R4, Each. Part Number: TCI-880018. ( 15 ) Estimated Ship Date: Today. $32.95. Add To Cart. This product may not be eligible for select promotional offers. Compare.

The 700R4 transmission first gear, second gear, third gear, fourth gear, and reverse gear are 3.06, 1.63, 1, 0.7, and 2.9 respectively. Its lower first gear ratio provides excellent performance for low vehicle speeds. Besides, a 30% overdrive brings about enhanced fuel economy, a reason that can also be attributed to the popularity of the 700R4.٣٠‏/١٠‏/٢٠١٩ ... The speedometer cable gear (driven gear) is mounted within ... Speedometer driven gears in the Turbo 400 and 700R4 have between 34 and 45 teeth.700r4 Speedometer gears drive and driven, Speedometer gear housings, Speedometer parts, and Dodge or Ford odometer gears. La Speedometer Gear offers just about any speedometer drive and driven gear for Chrysler, GM, and Ford rear wheel dive and 4x4 cars and trucks. Please email us or call/Text 318-208-4184 if you cannot find the …La Speedometer Gear 8640517 17 tooth speedometer drive gear 700r4 BOP TH350. $12.50 $ 12. 50. Get it Oct 13 - 17. Only 13 left in stock - order soon.

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SPEEDO GEARS SPEEDOMETER GEARS & HOUSINGS DRIVEN GEARS TH350/C - TH200/C- POWERGLIDE - TH400 - TH700-R4 Small gear with shaft - plastic brown 18T 3987918 03-104 Small gear with shaft - plastic natural 19T 3987919 03-108 Small gear with shaft - plastic green 20T 3987920 03-112 Small gear with shaft - plastic red 21T 3987921 03-116 Product Description. CT0964 - Everything needed to completely up and secure your two inch speedo housing on your 700R4 / 4L60 transmission. Includes outer oring, inside seal and spring retaining clip to stop leaking at your speedometer housing. Also included is a speedo retainer bracket with metric and non metric bolts and lock washer to secure ...This calculator is a useful tool that will do the math to help you figure out the gears that are needed to make your speedometer work correctly. Instructions. Drive Gear Teeth - The Number of teeth for the transmission; Rear End - Rear Gear Ratio (3.89, 3.08, 4.11, etc.) Tire Height - Please use Inches when measuringSpeedometer Gears - Transmission Accessories - TCI® Auto. TCI Automotive. 662-224-8972 888-776-9824. Transmission Manuals & CDs. Flexplates/Flywheels.The "driven" gear (like in pic OP shows) work with the 8 tooth and vary in tooth count depending on what tire size. I believe the PG, 350 & Muncie all use the 8 tooth "drive" gear. IDK about the 700R. BTW, 5mph off is 1 tooth +/- (depending if speedo reads low or high) difference. Driven gears are about $7-$8.GM Driven Speedometer Gear, 34-Tooth Green Suit TH350, 400 & 700R4 . $61.84. Part Number: TCI880007. More details. In stock. Add to Cart. Add to Wish List ; ... TCI GM Speedometer Gear Housing, 7/8" diameter for 18-23 tooth gears Fits Powerglide & TH350 . $37.91. Part Number: TCI880021. More details. In stock. Add to Cart.

١٤‏/٠٩‏/٢٠١٢ ... I am installing a 700R4 transmission into a 1941 Chevy. My rear tire is a 27.7" tall P215/70R15. Rear end is a 3.73 ratio Explorer unit.TCI 880018 GM 700R4 15 Tooth Speedo Drive Gear. Visit the TCI Store. 7 ratings. $3195. FREE Returns. This fits your . Make sure this fits by entering your model number. This product is a Speedometer Drive Gear GM 15 Tooth Grey. Easy to install and good quality accessories for your vehicles.burgerMemberfrom burbs. I am installing a 700R4 transmission into a 1941 Chevy. My rear tire is a 27.7" tall P215/70R15. Rear end is a 3.73 ratio Explorer unit. When I put these numbers into Bowtie Overdrive's calculator, it recommends a 19T/34T combination. Put the same information in the TCI calculator, and it generates a very different 15T ...Speedometer Gears - THM700-R4/4L60/MD8 Transmission Model - Free Shipping on Orders Over $109 at Summit Racing Filter Results by Vehicle Search New Vehicle Sort Sort By Default Sort Product Line (a-z) Product Line (z-a) Part Number (a-z) Part Number (z-a) Price (low-high) Price (high-low) New Arrivals Records Per PageHaving the speedometer read accurately is important both on and off the road. This will correct over all speed readings, correct shown distance traveled, and allow the jeep computer to properly shift your transmission (applies to Automatic transmission only). Factory speedometer gear variances can be ±5% from the actual speed shown.Here is a list of GM part numbers for drive and driven speedometer gears, as well as some combinations that are known to work: Driven Gear and Sleeve PN's. * Sleeve #25512340 for 34 - 39 teeth gears ** Sleeve #25512339 for 40 - 45 teeth gears. Blue Drive Gear Combinations. With drive gear number 8640518, (blue, 18 teeth) the following ...The first 700r4 gear was set to a ratio of 3.06, the second to a drive ratio of 1.63, the third drive gear to a ratio of 1, and the fourth gear to a ratio of 0.7, or around a 30% overdrive ratio. Additionally, this transmission also features a 700r4 ratio of 2.9, which is the reverse gear. Here comes the part you are waiting for: The 700r4 ...Hello Family In today’s video we show you how to locate and use a Speedometer calculator to determine what’s the best gear to use on your DIY Projects. Thank...Plastic gears immersed in transmission fluid for many years will be stained and off-color. You often see the speedometer driven gear referred to as the "pencil" gear and the speedometer drive gear the "circle" gear. TH400, TH350 BOP, 700R4: Let's say that, in our example, we find a white gear with 36 teeth. Adding six teeth to correct a ... LA Speedometer Gear 700r4 and BOP TH350 clip plus 40-45 tooth driven gears and 15 17 18 19 drive gears. 4.6 out of 5 stars 5. $80.00 $ 80. 00. FREE delivery Oct 11 - 16 . Or fastest delivery Sat, Oct 7 . Only 14 left in stock - order soon. LA Speedometer Gear 700r4 and BOP TH350 35 tooth gear and 2" housing.

GM Driven Speedometer Gear, 34-Tooth Green Suit TH350, 400 & 700R4 . $61.84. Part Number: TCI880007. More details. In stock. Add to Cart. Add to Wish List ; ... TCI GM Speedometer Gear Housing, 7/8" diameter for 18-23 tooth gears Fits Powerglide & TH350 . $37.91. Part Number: TCI880021. More details. In stock. Add to Cart.

Add To Cart. 19 Tooth 700R4 Speedo Drive Gear. Price: $26.95 Sale Price: $18.95 Sale. Add To Cart. 700R4 Drive Gear Retaining Clip. Price: $29.95 Sale Price: $12.95 Sale. Add To Cart. 700R4 Speedometer Housing. Price: $94.95 Sale Price: $69.95 Sale.PATC – Performance Automotive Transmission Center. Location: 2134 E. Texas Street Bossier City, Louisiana 71111, USA. Telephone: Parts Warehouse (318) 742-7353 Transmission Shop (318)742-7784, 2009-01-25 However, there is a close ratio gear set on the market now. These will have a 2.84 to 1 first gear, 1.56 to 1 second gear, 1 to 1 third gear and .70 to 1 overdrive ratio. This close ratio 700R4 gear set will have a 10.5% less RPM drop between 1st and 2nd than the wide (stock) ratio gear set. Determine the size of drive gear for the speedometer given the tire size is 20 inches and the axle ratio is 3. Assume the number of teeth on driving gear as 40. Enter the diameter of the tire, D = 20 inches. The calculator will now return the number of revolutions per mile, R = 1008.4. Enter the Axle ratio, A = 3.Speedometer drive gear, comes in 15, 17, 18 or 19 tooth. (From left to right: 15 Tooth | 17 Tooth | 18 Tooth | 19 Tooth) Speedometer Calculator, Click Here Main Speedometer Gear Page CLICK HERE Speedometer …* TH350 700R4 5/16 Inch Speedometer Drive Gear Clip 6261781 $ 4.00 Add to cart; 700R4 / BOP 350 Speedometer Gear Housing for 40 to 45 tooth Driven Gear $ 49.00 Add to cart * Dodge, GM Ratio Adapter, Select Slow Down Percent $ 129.00 Select options * 700R4 – BOP TH350 – TH400 – 4L60E, Speedometer Gear Housing Retainer. ( Y style) $ 7.00 ... The calculator tells you that you need a 15 drive gear and a 45 driven gear. Divide 45 by 15 = 3.000. Now go to the Excell chart that I posted. You will see that the following driven and drive gears will give you a 3.000 ratio: 21/7, 24/8, 27/9, 30/10, 42/14, 45/15 . ANY of them will work BUT not all of them are available.Speedometer Gear Calculator. Changing tires to a new size or changing rear-end gears can have an impact on speedometer accuracy. This is because your ...

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Speedo Revs/mile = (20168 x DiffGear x DriveGearTeeth) divided by (Tire-diameter x Driven-GearTeeth) Speedometer Calibration How to determine what transmission speedometer gear is correct and what information is needed in order to properly calibrate a speedometer. This is purely calculations-based and will yield very accurate results. 700R4 / BOP 350 Speedometer Gear Housing for 34 to 39 tooth Driven Gear. $ 47.00 Add to cart * A64533, 700R4 / 4L60E / 2004R Pump Vane, 1981-Up. $ 1.00 Add to cart * TCS 373405, 200-4R / 4L60E / 700R4 13 Vane Billet Steel Pump Rotor $ 210.00 Add to cart * 700R4 / 200-4R Throttle Valve Cable Corrector Spring. Sonnax AS1-01K (1 spring only)Popular Transmission Speedometer Gear Tooth Counts Transmission TH350 (Chevy) TH350 (BOP) TH400 200-4R 700R4 (4L60) C4/C5 C6 AOD 904 727 Muncie Saginaw Top Loader T-10 T-5 T-56 TKO Drive Gear Driven Gear 7 - 10 17 - 20 15 - 21 10 - 13 15 - 20 7 - 9 6 - 9 7 - 9 13 13 6 - 9 6 - 9 6 - 8 6 & 8 7 - 9 7 - 9 7 - 9 17 - 25 34 - 45 34 - 45 26 - 31Reducer for 4 Speed Manual w/ 3.91, 4.11 or 4.30 Rear End. • Vehicle that were factory equipped with the. 3.91, 4.11 or 4.30 rear axles came with Reducers. * Common Drive Gear Teeth: C4, C6, or FMX: 8 Teeth (Some 429 Police Intercepters came with 9 Teeth) 3 Spd or 4 Spd Toploader: 7 Teeth (unless listed in this chart: View Chart)* TH350 700R4 5/16 Inch Speedometer Drive Gear Clip 6261781 $ 4.00 Add to cart; 700R4 / BOP 350 Speedometer Gear Housing for 40 to 45 tooth Driven Gear $ 49.00 Add to cart * Dodge, GM Ratio Adapter, Select Slow Down Percent $ 129.00 Select options * 700R4 – BOP TH350 – TH400 – 4L60E, Speedometer Gear Housing Retainer. ( Y style) $ 7.00 ... Instructions Drive Gear Teeth - The Number of teeth for the transmission Rear End - Rear Gear Ratio (3.89, 3.08, 4.11, etc.) Tire Height - Please use Inches when measuring Speedo Revolutions Per Mile - The number of RPM's the speedometer needs to turn at 60mph Speedometer Gear Calculator Drive Gear Teeth Rear End Gear Ratio Tire Height (Inches)٠٦‏/٠٤‏/٢٠١٣ ... The 700R4 uses a 15 to 19 tooth drive gear depending on transmission year, model and axle combination of vehicle it came out of and a 34 to 45 ...With an input of : 1000 revolutions per mile - (speedometer factor, which can vary depending on the speedometer) 30.5" rear tire diameter - (this is for my pro street '58 pickup) 3.50 differential gear ratio 15 number of transmission speedometer drive teeth;-The link calculated that a driven gear requiredShop 700R4, Speedometer Drive Gears and get Free Shipping on orders over $149 at Speedway Motors, the Racing and Rodding Specialists. 700R4, Speedometer Drive Gears in-stock with same-day shipping. Talk to the experts. Call 800.979.0122, 7am-10pm, everyday. GIFT CARDS. DEALS. TRACK ORDER. HELP CENTER. Shop. Parts. Learn. Toolbox.Just hauls. I think you will be underwhelmed going with a 3.23. MPG is really not much different. Maybe 1 mpg. I'm considering a 700r4 with a 3.23 rear end gear ratio in my '78 standard El Camino with 350v8, 4bbl. I think this combination will make a noticeable difference from my stock TH350 and 2.41 rear end. ….

Watch as Performance Automatic explains the different speedometer gears for Turbo 350, Turbo 400, 700R4 and Ford applications.4L60E / 700R4 early type speed sensor (VSS). A 40 pulse per driveshaft revolution speed sensor is used on 1993 and newer trucks with automatic transmissions, plus 1994 and newer rear wheel drive cars with automatic transmissions. ... 4L60E / 4L65E / 4L70E, 700R4, GM Tags: *Speedometer Gears, Speedometer World, Electrical - except solenoids ...The NP208 is an aluminum case 2 speed chain driven transfer case with a 2.62:1 reduction in low and 1:1in high range and utilizes a planetary gear low range. It was used in a variety of applications from 1980-1987 in Dodge Ramcharge and Pickup trucks, the Dodge units have 23 splines.See full list on help.summitracing.com Jan 16, 2008 · it's simple, I have a 700r4 from a v6 car, which I don't know what gear ratio it had. It's currently in a v8 monte carlo ss with 3.73 gears, and 235/60r15 tires. My speedometer is off, right now I'm going to install a new autometer speedometer and would like it to read correctly. I know I have to change some gears in the tail. LA Speedometer Gear 700r4 and BOP TH350 45 tooth gear and 2" housing. 4.9 out of 5 stars 17. $34.50 $ 34. 50. FREE delivery Oct 13 - 17 . Or fastest delivery Thu, Oct 12 . Only 4 left in stock - order soon. La Speedometer Gear 345215 Chevy TH350 type Bullet speedometer gear housing with oring and seal.... 700R4 transmission speedometer gear for 3.73 rear end. Please call to verify this gear will work with your application (tire size, drive gear tooth count, etc.)TH350 & 700R4 Complete Speedometer Setup Kit W/Housing Seals Retainers 15 & 43 Speedo Gears. Amazon. Motor Trend Magazine - February 1978. 700r4 speedometer gear chart, Check out Alf's Mustang Parts on Amazon www.amazon.com/shops/mustangalfThings I used in this video. As an Amazon Associate I earn from qualifying purchases..., Calculator for the right gear ratio on the speedometer. 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 ..., Speedometer Gear Calculator. Enter your tire size. Tire diameter may vary slightly depending on the manufacturer. If in doubt use manufactures posted diameter. Metric Width: 205 215 225 235 245 255 265 275 285 295 305 315 325 335 345 355 365. Profile (Aspect Ratio): 30 35 40 45 50 55 60 65 70 75 80. Wheel Diameter: , Mar 24, 2015 · There is a good chart that relates the color of speedo gears, both drive and driven, with the number of teeth for the gear on page 10 of the July/ August 1998 issue of the GS X-tra. It was written by Greg Friend. It covers TH400's, TH350's, Super Turbine 300's, and TH200-4R's. I have a scanned copy of the page in my tool box. , Plastic gears immersed in transmission fluid for many years will be stained and off-color. You often see the speedometer driven gear referred to as the "pencil" gear and the speedometer drive gear the "circle" gear. TH400, TH350 BOP, 700R4: Let's say that, in our example, we find a white gear with 36 teeth. Adding six teeth to correct a ..., Speedometer Gear Calculator. Enter your tire size. Tire diameter may vary slightly depending on the manufacturer. If in doubt use manufactures posted diameter. Metric Width: 205 215 225 235 245 255 265 275 285 295 305 315 325 335 345 355 365. Profile (Aspect Ratio): 30 35 40 45 50 55 60 65 70 75 80. Wheel Diameter:, The first 700r4 gear was set to a ratio of 3.06, the second to a drive ratio of 1.63, the third drive gear to a ratio of 1, and the fourth gear to a ratio of 0.7, or around a …, Use this TCI Auto Speedometer Gear Calculator Formula for any GM, Ford or Chrysler vehicle. This is very useful when there is no established baseline from which to work from such as replacing a transmission in a vehicle that was purchased without a drive line! www.tciauto.com. Nov 26, 2022. #5., 180 / 180C / 250 / 350 / 700R4 (5/16” Wide slot) Tooth Count Color Part # Reference # ... GM SPEEDO GEARS. 4l30e Tooth Count Color Part # Reference #, The calculator tells you that you need a 15 drive gear and a 45 driven gear. Divide 45 by 15 = 3.000. Now go to the Excell chart that I posted. You will see that the following driven and drive gears will give you a 3.000 ratio: 21/7, 24/8, 27/9, 30/10, 42/14, 45/15 . ANY of them will work BUT not all of them are available., 180 / 180C / 250 / 350 / 700R4 (5/16” Wide slot) Tooth Count Color Part # Reference # ... GM SPEEDO GEARS. 4l30e Tooth Count Color Part # Reference # , This is a new replacement speedo driven gear used on TH350, TH400 and 700R4 automatic transmissions. 41-Tooth Yellow Color. ... 5R110W Transmission Diesel Pressure Test Chart; ... Top Selling 700R4/4L60E/4L65E Parts; Torque Converters; Transmission Tools; Valve Bodies Assemblies & Parts; 8L90 ., LA Speedometer Gear 700r4 and BOP TH350 retainer, clip, 34-39 tooth driven gears, 15/17/18 and 19 tooth drive gears, and 2" housing. 4.7 out of 5 stars 6. $139.00 $ 139. 00. FREE delivery Sep 19 - 22 . Or fastest delivery Tue, Sep 19 . Only 10 left in stock - …, 78 General Motors 2008 AUTOMATIC TRANSMISSION KIT & COMPONENTS CATALOG ©2008 PARKER HANNIFIN CORP. ALL RIGHTS RESERVED *Prefix Letter ‘T’ denotes Toledo-Trans Kit (TTK) Brand Transmission Kits, Speedometer Gear Calculator. Enter your tire size. Tire diameter may vary slightly depending on the manufacturer. If in doubt use manufactures posted diameter. Metric Width: 205 215 225 235 245 255 265 275 285 295 305 315 325 335 345 355 365. Profile (Aspect Ratio): 30 35 40 45 50 55 60 65 70 75 80. Wheel Diameter:, TCI 880003 - Speedometer Driven Gear 1962-73 GM Powerglide. (1) $28.95. TCI 880027 - Drive Gear 1982-93 700R4. (0) $25.95. TCI 880018 - Speedometer Drive Gear 1982-93 GM 700R4., If it has, say 22 teeth now, you'd need 22 x .15 = 3.3 more teeth on the gear, so you'd get a 25 tooth gear. If they make one. otherwise you get to find a drive gear (on the output shaft) with fewer teeth. Or get an adapter box made. Or if it's always off by that many mph, and the odometer works right, just take the needle off and move it 8-10 ..., Speedometer Gears - Transmission Accessories - TCI® Auto. TCI Automotive. 662-224-8972 888-776-9824. Transmission Manuals & CDs. Flexplates/Flywheels., Dec 18, 2011. 1,977. Harrisburg, Pa. Dogwater said: Won't work. I guess your using a cable to drive the speedo. 700r4s have 2 kinds of speedo setups, on the outside of the cover where the cable comes out there is numbers that have been cast into it, these numbers are the teeth on the gear that that housing will be able to use., Short Shaft Dodge Speedometer Gear. #12DG2-S. Comes in 26 tooth to 43 tooth. Call Jim at 1-888-877-1008 with all your Speedometer Questions! Menu ... * 700R4 Speedometer Drive Gear, #54X. $ 13.00 Select options * 4L60E / 4L65E, Mechanical Speedometer Kit, 1993–1997 Transmissions. Number SW41, Speedometer gears for BOP TH350 and 700r4 with 2" speedometer gear hole. Speedometer gear parts help-text 318-208-4184. Speedometer gear auto parts and 700r4 ..., burgerMemberfrom burbs. I am installing a 700R4 transmission into a 1941 Chevy. My rear tire is a 27.7" tall P215/70R15. Rear end is a 3.73 ratio Explorer unit. When I put these numbers into Bowtie Overdrive's calculator, it recommends a 19T/34T combination. Put the same information in the TCI calculator, and it generates a very different 15T ..., Can anyone tell me what color gear (gears) I would need to have my speedometer to read correctly. Have a 77 vette that I just changed the differential gears to 3.55 and would like to change the speedo gears before I put eveything back under car. I had 3.08 gears/ 225/70-15 tires/27.4"dia.and..., Watch as Performance Automatic explains the different speedometer gears for Turbo 350, Turbo 400, 700R4 and Ford applications., Driven Gear (7 - 44): Axle Ratio (< 10): Tire Diameter Calculator Tire Width Aspect Ratio Rim Diameter Calculate Quickly calculate your speedometer drive gear size for your transmission with this easy to use calculator, Shop 700R4, Speedometer Drive Gears and get Free Shipping on orders over $149 at Speedway Motors, the Racing and Rodding Specialists. 700R4, Speedometer Drive Gears in-stock with same-day shipping. Talk to the experts. Call 800.979.0122, 7am-10pm, everyday. GIFT CARDS. DEALS. TRACK ORDER. HELP CENTER. Shop. Parts. Learn. Toolbox., Short Shaft Dodge Speedometer Gear. #12DG2-S. Comes in 26 tooth to 43 tooth. Call Jim at 1-888-877-1008 with all your Speedometer Questions! Menu ... * 700R4 Speedometer Drive Gear, #54X. $ 13.00 Select options * 4L60E / 4L65E, Mechanical Speedometer Kit, 1993–1997 Transmissions. Number SW41, The 45T -lt. blue -is the most teeth available for the 700r4 . You need to add teeth to slow it down but there are none with more teeth. TH400, TH350BOP, 700-R4: Speedo driven gears have from 34 to 45 teeth. Each tooth added lowers the speedo reading about 2.5%. Each tooth removed raises the speedo reading about 2.5%., Having the speedometer read accurately is important both on and off the road. This will correct over all speed readings, correct shown distance traveled, and allow the jeep computer to properly shift your transmission (applies to Automatic transmission only). Factory speedometer gear variances can be ±5% from the actual speed shown., 700R4 / BOP 350 Speedometer Gear Housing for 40 to 45 tooth Driven Gear $ 49.00 Add to cart * Dodge, GM Ratio Adapter, Select Slow Down Percent ... *Speedometer Gear Calculator (1) *Speedometer Gears, Speedometer World (45) Accumulators & Parts (11) Adapters (67) Bands (10) Bargains (5) Books & Videos (1), Show details. This item: LA Speedometer Gear 700r4 and BOP TH350 34 tooth gear and 2" housing. $33.50. Only 10 left in stock - order soon. Ships from and sold by American Hot Rod Solutions. Get it Mar 2 - 6. La Speedometer Gear Speedometer gear housing retainer. $10.20. Only 5 left in stock - order soon., Just hauls. I think you will be underwhelmed going with a 3.23. MPG is really not much different. Maybe 1 mpg. I'm considering a 700r4 with a 3.23 rear end gear ratio in my '78 standard El Camino with 350v8, 4bbl. I think this combination will make a noticeable difference from my stock TH350 and 2.41 rear end., 700R4 / BOP 350 Speedometer Gear Housing for 40 to 45 tooth Driven Gear $ 49.00 Add to cart * Dodge, GM Ratio Adapter, Select Slow Down Percent $ 129.00 Select options * 700R4 – BOP TH350 – TH400 – 4L60E, Speedometer Gear Housing Retainer. ( Y style) $ 7.00 Add to cart * Ford Automatic Transmission Speedometer Driven Gears. (one gear)