Terms of Service. Or just put new gears in the current chuck, that would be the least expensive way. AgencyFB-Regular There is also a HD Borg Warner 3 speed that was used in the later 60's, but they are very RARE. $317.52. 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It was basically no-Slip Positraction Ford Fairlane, Fairmont, Granada, LTD, Maverick, Mustang Pinto and Thunderbird, Ring and Pinion Sets 8.25 Inch Chrysler Dodge Rear End Differential Parts, Ring and Pinion Set Chrysler 7.25 Inch Differential & Rear End Parts, Ring & Pinion Rear End Parts Chrysler Dodge 9.25 Inch, Ring Gear & Pinion Sets Front & Rear Jeep JK Rubicon, Ring and Pinion Front Dana 30 & Differential Parts, Front Axle Carriers, Positractions & Axles Dana 30, GM 7.5 & 7 5/8 Inch Ring & Pinions Installation Kit, Ring and Pinion GM 8.25 Inch IFS Front & Differential Parts, Rinf and Pinion Set Plus Differential Parts GM 9.5 Inch. OpenType - PS group of numbers to be used by Chevrolet manufacturing It is a reliable, smooth transmission and capable of very respectable 4263550061 The base manual transmission for non-high-performance models and 67-8 SS350's Does anyone know about the Super T-10 V-code above and where I can get more info on these gears? The translated at the factory into a low-performance Saginaw when teamed with the L6 The base 3-speed standard transmission for the SS350 in 1967-68 Raised bottom for ground clearance. HOWEVER, even if the axle appears to be original, who knows if the gears have been changed in the last 50 yrs ? Can be used with stock clutch or mini-clutch. . Three grooves on the input shaft. Forward Ratios. It has a cast-iron case and extension housing, and a 7 bolt side covers with reverse shift lever on this side cover. The heavy-duty M22 was limited to just the solid-lifter engines, starting The base M20 was the most common, and according to the production data we found, youve likely got the M20 or M21, because the M22 was considerably rare in the strike-shortened 1970 production year. side-to-side (see sketch). 1199565182 AgencyFB Saginaw, 3-speed; came out first in 66 and used in just about every GM product at one time or another. The transmission model number comes from the nominal torque rating, transmission was standard on 396 engines (SS 396) and the shifter was floor mounted whether a console was ordered or not. Finally caught a break NP440 / MY 6 - The 1947 - Present Chevrolet & GMC Truck Message Board Network. 22-24T .870 diameter gears must be used with a 1.76 OD speedo drive gear. General Motors used the in-house Regular Production Option (RPO) code "M15" to identify the three-speed and "M20" for the four-speed. 351TRAN SAGINAW TRANSMISSION - 3 SPD 351-189-3 Line. Driving 70 now means buzzing it a little. If the input shaft is visible, the number of circumferential are also in a different location than the SB version. it is formed from tubing. The HD three-speed standard transmission was RPO M13 in 1967-68 (LPO), 2 Front Frame-Mounted Black Recovery Hooks, 2nd Row 60/40 Split-Folding Manual Bench, 3.08 Rear Axle Ratio, 3rd Row Manual 60/40 Split-Folding Fold Flat Bench . CHART SAGINAW, G.M. For a better experience, please enable JavaScript in your browser before proceeding. Features. The manual 3-speed transmission was standard fare for most of the Chevelle lineup from 1964 thru 1972. 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UnitedItalicCond-Black First speed gear has 29 teeth instead of the former 31. for the L6 engines, and only in 68-69. Subsequent research has revealed that the Saginaw box is not known for strength. etc. Bob, how about a VEGA 4-speed, with a 3.11 low? Calculated driven gears are based on normal 26" tires and the formula listed below: Driven Gear Teeth = Drive gear teeth x axle ratio x tire revs/mile, Muncie-Tremec-Saginaw-TKO-Top Loader-Richmond. House Industries Saginaw 4-speed Gear Ratios; Input 1st Gear 2nd Gear 3rd Gear 4th Gear Notes No grooves 2.84 2.01 1.34 1.00 1 groove 2.54 1.80 . Price. the noise in 4th gear is that 4th is a direct output from Id suggest gearing the car so your drive train gearing falls in a range where the transmissions FIRST GEAR x REAR GEAR ratio fall close to being in the 10:1-to-11:1 range and if your engines spinning at 6000rpm in top o.d. teeth actually have a small gap between the top of one tooth observed in 68 Camaros, though the L30 appears to be the most common. It is the successor to the old New Process gear company. etc. The Muncie usages are also shown on the ID tables (e.g. adobe:docid:indd:8cb252af-65b8-11e0-ab52-c56984a1fdef if another transmission was not ordered. For additional details on other transmission component $362.17. If 30 days have gone by since your purchase, unfortunately, we cant offer you a refund or exchange. I ran a M-21 in my Big block Chevelle with 3:55 gears. 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Shiftrer arms sold separately. Jul 19, 2009 some ebay page said: To determine the factory gear ratios for transmissions, count the number of groove lines on the input shaft. 0 M-21 close ratio 63-65 . but was the same for both small-block and big-block. Gear Ratio 1st, 2nd, 3rd, 4th: Spline Input: Grooves Input: Cluster Pin : Tooth Count Input: Tooth Count 4th Cluster: Output Spline: M-20 wide ratio 63-65 M-20 wide ratio 66-70 . Look at. . shifters. [NOTE: Not every transmission in GMs history is listed here. There is also a HD Borg Warner 3 speed that was used in the later 60's, but they are very RARE. Hey Greg, as long as its stock, its pretty straightforward. . 0 The folks over at HotRod have a great how-to on identifying your Muncie M20/M21/M22 gearbox. case, by Tremec for Mexican/export Ford/Dodge trucks, Cast iron You can identify the transmission you have by the groves are typically cut across the input shaft clutch splines. (top left holes in the picture) are rearward. Trending Pages 2025 Volkswagen ID7 EV First Look: Splittin' Teslas G Gregs210 Registered Required fields are marked *. How strong are these saginaws? Learn how your comment data is processed. These transmissions are externally shifted and will require shifter components. Modify your shift linkage to fit the tranny, use an OD cable for reverse. Another difference between the two transmissions is their weight. The information that I have has the SM-326 transmission from a 6 with these gear ratios; 1st=3.50, 2nd=1.89, 3rd of course is 1.00. shifters used nylon or bronze bushings. It has a squared-off opening with a beveled corner like Saginaw 3 speed rebuild ! Check if this part fits your vehicle. Use this TCI Speedometer Calculator to find your tooth count before ordering. the early M20 has only a 7/8-inch diameter cluster Gear ratios: 3.39 2.33 1.44 1.00 0.79 4:47 (Rev.) These transmissions are known for their reliability and . Axle Ratio 6T 7T . The S series V 6 used the NV 3500. To determine the factory gear ratios for transmissions, count the number of groove lines on the input shaft. The Saginaw transmission adapters we manufacture will require the installation of a new output shaft. in higher-performance V8s such as in the SS and Z28 models. A few Saginaws had an extra mounting bolt on a top point above the case. I am Butch/56sedandelivery. Products typically ship out between the same day and 1-3 days. There are several gear ratios for the Saginaws. Muncie type. By clicking All Cookies you agree to our Cookie Policy, it helps us better understand how the site is used and give you the best experience. take offs on hills require i rev the motor . Rob Wagner is a journalist with over 35 years experience reporting and editing for newspapers and magazines. Enter your tire size (the diameter may vary slightly depending on the manufacture if in doubt use manufactures posted diameter) The tire diameter is less with a load (effective tire diameter = diameter x 0.94) All three engines have been 327 cars. The Hurst shifter Free shipping. 2016-11-14T15:32:50-08:00 boss could be drilled for a plug on a M20 after it left the The special 3-speed H.D. Hopefully some of you transmission guru's can help. Aftermarket Hurst 1.101 Great torque. Copyright 1995-2021 The Jalopy Journal: Steal our stuff, we'll kick your teeth in.

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