i want to put a a 1991 12v cummins motor in a 1976 gmc 1ton i want to use a turbo 400 trans can i do this i have the adaptor plate and flywheel and starter do i need to change any thing in the trans thanks for the help

 

Welcome Bob.... there was a post on here about a guy that put a Cummins in a 1 ton Chevy..... until then post up in the intro section and tell us a little about yourself.....

 

Just make sure that the turbo 400 come from behind a diesel. If it came for behind a gas jod the diesel engine will tear it up in no time.

 

thanks

 

i think you can rebuild a 400 turbo from any GM to work on a diesel.

i think on a gassers the 400 won't shift correctly for a diesel either

 

thanks

 

I would build the trans and have a custom convertor built for it.

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On a side note I had a 81 crewcab with a 89 Cummins/727 auto. I miss that truck.

 

thanks for the help do you know what gears you was running in that 81 chevy

 

3.07, it was the Dana 70 out of the same truck the engine and trans came out of.

 

thanks for the help