Saginaw transmission identification numbers Sep 3, 2002 · How can I tell if the Saginaw transmission that's in the car is the transmission that originally came in the car? It’s a 1971 Chevelle SS350. 68:1 for second and 1. Besides the transmission identification, it also helps to figure out which options was the car ordered with by using a VIN decoder tool. crankshaftcoalition. Need help to decode Saginaw 4 speed transmission. Transmission Identification . Cast iron case, believe it is a Saginaw three speed, but not sure. Jan 13, 2025 · Retrieved from "https://www. 04-08-08 06:51 PM - Post# 1407229 Can anyone recommend a ID guide for Saginaw 4 speeds? The 4 speed case number is 3925658. This is a fully synchronized gearbox that was used on most GM smallblock applications from 1966 into the 80s. The tail shaft is 326558 and serial number on pad is 197189622. i'm wondering if anyone knows were i can reference my casting numbers and Oct 12, 2005 · The other Saginaw has an Inman (?) gate and linkage. com * MUNCIE Shaft Identification The above Muncie 4 speed transmissions can be distinguished from the style of the transmission arm attachment. Our take. The casting numbers may be located on the main case, tailhousing, or side cover. The table below summarizes the transmission maincase casting numbers for 67-69 Camaro applications. Both transmissions are identical, but the Inman shifter gate and linkage is crap and cumberson compared to the Hurst. The casting numbers will usually start with the letter "S" followed by a series of numbers that indicate the year and model of Jan 16, 2012 · My brother received a Saginaw and is going to rebuild it. 85:1 for first, 1. SECOND TRANSMISSION. Jun 7, 2022 · To identify your Saginaw 3-speed transmission, start by checking for casting numbers on the side. If you want to narrow down the year you will need a casting date from one of the cast parts. Oct 15, 2024 · Look for casting numbers: The Saginaw transmission extension housing has several casting numbers that can help identify the transmission. Where are the ID numbers on a Saginaw transmission and what do they indicate? Thanks, Bubba-----ACES member #04788 Maryland Chevelle Club member #075 Maryland Automotive Modelers Association Sep 15, 2021 · The Saginaw transmission was engineered and manufactured in Saginaw Michigan for the Chevrolet General Motors, vehicles with RPO code M15 utilized the Saginaw 3 speed, you should be able to find a “S” on the passenger side of the case rear cover. This is a Saginaw 55-65 3spOD. Check through the information for your transmission identification. FIRST TRANSMISSION. Main case casting numbers (when looking at the passenger side these numbers are upside down) 6273262, tail shaft housing casting numbers 3968035, Shifter cover casting numbers GM1 3952646. The Saginaw came in a wide variety of vehicles and Aug 18, 2008 · I have a saginaw that was pulled from a camaro. Get a good one to start off with, like the Hurst. Casting is located above side cover, on trans. case. The tail housing below the tranny is an OD housing. Last edited: Dec 16, 2012. 00:1 for third when matched with L6 in-line six-cylinder engines. Manual Transmission Castings Manual transmission cases can be identified by the casting numbers and casting dates. See full list on 700r4transmissionhq. GM 8. These can tell you both the model and year of manufacture. Number is located on side cover. X3845157 GM. Good For additional details on other transmission component casting numbers, component casting dates, and internal transmission details, see Colvin's Chevrolet By The Numbers series, listed in the CRG References. Any help would be great. MUNCIE M-22 (453) G. Typically any V8 with an advertised horsepower rating of less than 300hp got the Saginaw while 300hp and above got the Muncie; both were ordered under RPO M20. Please bare with me. The 58-65 versions had a shorter tail housing. Only offering help here. Oct 4, 2015 · Numbers are displayed below, as they appear on the transmissions. Jan 26, 2023 · This is a guide to help you identify the various Saginaw 4 speed manual transmissions that were offered. The first letter in this string of numbers, which may be located on the transmission casing, will help you know which Saginaw transmission you are looking for. General Motors used the in-house Regular Production Option (RPO) code "M15" to identify the three-speed and "M20" for the four-speed. 7 bolt side cover 1970, 454 Chevelle Jan 30, 2010 · Hi, i have a four speed that i just acquired, the guy i got it from said it might have came out of a corvair, but didn't know for sure. M. It was replaced by the fully syncro Saginaw in 66. case That number identifies a side cover for a 3 speed Saginaw transmission. Pre ‘69 Muncie’s use a stud & nut at the indicated attachement point, while ‘69 and later Muncie’s use a bolt as illustrated on the right. Nov 14, 2013 · Hopefully some of you transmission guru's can help. Saginaw three-speed transmissions featured gear ratios of 2. See the Internal Date Codes information here. Feb 6, 2020 · Some of the Saginaw's also came with a BW R-10 overdrive attached (the same OD that can be used to make a saginaw 4-speed with overdrive transmission). Any help is appreciated. The main case number is 338935. 1964 to 1968 Muncie 4-speed transmissions can be identified from later models by the way the transmission arms attach. On the main case: 338935 Main Case date code was hard to read, but would I could read of it was K 0 3 Partial VIN: 14U210803 Tail Housing: Couldn't read the casting number, but the date code is K 12 3 Side Cover: 3952647 Dec 24, 2008 · I was wondering if there is a number on the tranny that will give info about the tranny like head and block casting numbers? Also I know that Mortec has a very good page on head and block casting numbers, is there another site for Saginaw 4 speeds? May 3, 2014 · on many transmissions you have groves cut into the input shaft. * MUNCIE Shaft Identification The above Muncie 4 speed transmissions can be distinguished from the style of the transmission arm attachment. Some of the casting numbers were hard to read. Cave man adjusting, and long bulky linkage rods. php?title=Transmission_identification&oldid=3488385" THE 55-65 3sp WAS A SAGINAW!!!! Non syncro in 1st gear. Don't try to save a few bucks on linkage/gate. All of the pics that I find don't look exactly like what I got, and the identification chart isn't real clear on what the tail of the Vega trans looks like. Nov 12, 2015 · The 72 Nova SS I bought NEW had a Saginaw 4 speed, and the shifter was bolted to the cross-member, and had a support strut that went to one of the transmission bolts. 691747 OR 591747. The tail shaft housing number is 352254. Transmission block casting number R 7 T 28 GM number 3890564 Martinius. Models often have numbers like 442, 425, or 448. General Motors has several transmissions, and they can be challenging to identify. 1967-68 Camaro 4-speed Nov 15, 2011 · 3925658 is the p/n for the 1968-'69 Muncie "M-type" main case (casting number 3925660). RPO code M20 significances the 4 Speed version, this overdrive will have a code of “O”. I'm thinking this is a cast iron Saginaw, the casting number would be 39255656 though. Now I am second guessing myself and thinking that I got the 456 saginaw 4 speed. On the OP's Saginaw, with the 5 bolt bellhousing mount, unless I had the truck bellhousing also, I'd probably swap to the passenger car throwout bearing collar, and cut the 5th/top mounting bolt Nov 18, 2022 · Input the VIN in a decoder and search. Nov 10, 2008 · Hey Guys, I picked up this saginaw transmission the other day and I was wondering if anyone here can tell me what I have? Codes are: Cover - 6261886 Tail - 35225 Main Body - 338935 G122 there is a 8 and a "K" next to those numbers. The reason is in mfg and repair you can tell at a glance what you have. Casting numbers are notorious for being vague and hard to read. K 170. After a couple of dealer warranty visits, because I "challenged" the transmission, I put a Borg Warner Super T-10 4 speed in the car, and never had any more issues. This is the general appearance of the 55-65 Saginaw 3sp. This may be a 3 speed overdrive? THIRD TRANSMISSION. 7 bolt side cover 1970, 454 Chevelle Jun 11, 2023 · The saginaw transmission identification numbers are a guaranteed way to know what you’re looking at when correctly recognizing a Saginaw overdrive transmission. the only Saginaw numbers i have found are for the tranys that came out of camero's and nova's. Shifters - Manual Transmission All 1967-69 Camaro 3-speed transmissions transmissions used Muncie shifters. Can anyone recommend a ID guide for Saginaw 4 speeds? The 4 speed case number is 3925658. i did a search on the casting numbers, i found on the main trany housing but came up empty. The side cover is 6261886 There is a J101 Which I believe is a date code but not sure And a 172109821 that I believe is a vin number but does not match the camaro vin. com/wiki/index. All my limited tech books I have on saginaw only list no line,1 line ,2 line and 3 line for 4 speed and the 3 speed. Aug 6, 2013 · I was going to buy the shift linkages for it today and decided to look at the transmission identification chart. . this is to I D what transmission gear set you have. iqznbtw cselo tcbrtl efdu kdituq aaoksz cvbuxiv gijydu ltpnb atoz