Quote:
Originally Posted by AJHack
Does anyone know where to find a Chevy MM7 manual transmission? That is the 4 wheel drive version cast iron case. The 2 wheel drive aluminum case version is the MY6. They came in Chevy trucks from 81-88 I think. It is really a Mopar A-833 transmission with a Chevy bellhousing.
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Just to be clear - the MM7 and the MY6 are the same thing.
MM7 is the "merchandised RPO" that the dealer would chose for a floor shifted manual overdrive trans. MY6 is the "non-merchandised" option code that the engineering charts would choose based on GVW and powertrain considerations. Since there is only one offering they are the same.
The difference between 2wd and 4wd would be taken into account at the part number level.
And I agree that 1987 was the last year.
Contact site member "D13". He had two or three but may have just gotten rid of them.
K