Q: M-20 Transmission

asked by on December 15, 2016

I have a muncie 4 speed with a partial vin # can you tell me what it was originally put in (chev, olds, pontiac)? The date code is P8S21 (1968 car), case # is 3945660, two rings on input shaft, This tells me it is a 1968 M20. It has a partial vin # of 28U160593 stamped on main case. Can you tell me what it was originally put in?
My car has a manual transmission.

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