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Hello, I'm considering swapping my 6L vortec out for a 12V cummins i have in my 92 dodge. I have done a small amount of research and found i can almost buy everything to make it a bolt in process(motor mounts, adaptor plate, flywheel, transmission controller, ect...). I haven't actually located any threads that had someone doing a swap on my style truck, so i'm wondering on what fab issues i may run into. It seems a lot of people change the transmission along with the motor, but i plan to keep mine the same(4L80). I'm wondering if i buy a duramax front bumper and intercooler if it should work? Will i have to modify some of the cross-members? Any information would be greatly appreciated! thanks!
Don't know about the various frame/mount mods, but, there's a company that makes just about every possible bell-housing imaginable for bolting up a tranny to the back of a Cummins. You might also source one from the worldfamous "bread truck" that's often powered by a 4BT and has a TH400 trans.
somebody's probably already done it, though...maybe he'll happen along and give more (better) information.