Hi, Please can you inform me if it is possible to substitute the 4-speed Hydramatic gearbox fitted to my 1968 2-door Shadow, with the later GM 400? so far I have spotted differences in part numbers on FS website for the propshaft, starter motor and torque converter, wondering if there is anything else I need to be aware of, thank you regards Tim.
Gearbox Swap
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This is the advice from our Technical team:
Everything is possible but you would be changing engine/gearbox extension,complete gearbox,propshaft,gearbox actuator ,top of column switching and gear change and all other involved wiring circuits
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