How do I know what transmission I have 4 speed?

How do I know what transmission I have 4 speed?

While it’s obvious that the four speed will use three shift-linkage arms and the three speed will have two, if the first letter is R, then you have found a four speed. If it starts with an S, you are looking at a three-speed Saginaw.

What are the transmission casting numbers on a Chevy club?

Thanks to you, Keith, 2 out of the 4 trannys are now identified. There are still 2 trannys that need to be identified. There are also codes on the trannys I would like to know about. Those codes are GM 3, GM 8 AND GM 9.

What is the casting number on a Muncie 4 speed transmission?

The casting number 3925660 denotes this as a 1968 – 1970 Muncie with a 1-inch cluster shaft. In order to correctly identify a Muncie four-speed transmission, several visual clues are needed, and those cues involve the casting numbers on the case, side cover, and tailshaft.

What are the case numbers for a GMC manual transmission?

Case casting is number 13-53. All aluminum top-loaded transmission with shifter on top of the extension housing with internal single-rail shift linkage. Front and rear main bearings are tapered. The cluster gear is solid and is supported on each end by cylindrical roller bearings located in the case. Case castings numbers are 13-51 or 13-52.

Where are the casting numbers on a GM engine?

A = January through L = December. The center two digits are the day of the month. The final digit is the year the engine was made WITHIN the years that you narrowed it down to when you deciphered the Casting Numbers to the right. The next set of numbers you will find helpful are on the flat part of the Distributor Deck.

The casting number 3925660 denotes this as a 1968 – 1970 Muncie with a 1-inch cluster shaft. In order to correctly identify a Muncie four-speed transmission, several visual clues are needed, and those cues involve the casting numbers on the case, side cover, and tailshaft.

Thanks to you, Keith, 2 out of the 4 trannys are now identified. There are still 2 trannys that need to be identified. There are also codes on the trannys I would like to know about. Those codes are GM 3, GM 8 AND GM 9.

Case casting is number 13-53. All aluminum top-loaded transmission with shifter on top of the extension housing with internal single-rail shift linkage. Front and rear main bearings are tapered. The cluster gear is solid and is supported on each end by cylindrical roller bearings located in the case. Case castings numbers are 13-51 or 13-52.

A = January through L = December. The center two digits are the day of the month. The final digit is the year the engine was made WITHIN the years that you narrowed it down to when you deciphered the Casting Numbers to the right. The next set of numbers you will find helpful are on the flat part of the Distributor Deck.