gmc medium duty conversion
hello everyone, i just joined this forum because i have some questions i need answered. i am starting on a cummins conversion on a 1977 gmc medium duty truck. this truck originally had the the 427 big block with the allison transmission. the motor is out and i'm looking for a donor truck or drivetrain for the swap. that is where the project is at the moment. i was wondering if anyone here has done a similar swap in a big truck like this and would have info/resouces that would help me in this project.
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