Quote:
Originally Posted by BuzzLOL
Didn't know if GM ever started building a heavy duty all synchro 3 speed to replace the all synchro heavy duty 3 speeds they were buying from Ford for use in GM products?
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The HD 'Dearborn' transmission was replaced by a HD 3 spd Muncie in the A / G bodies in 1970. Continued in the B body for '70, but was no longer available in 71.
GM continued using the Dearborn in the square-body GMC/Chevy pickups through the seventies.