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'78 Drivetrain on '84 Frame ????

930 Views 4 Replies 4 Participants Last post by  kyot
Found an '78 W20 4WD BBlock for peanuts.Frame rusted out.Have an '84 150 4WD ABlock, will the drivetrain off the '78 fit on the '84 frame?
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Hmm...i think most all of it wil lswap over cept some of thge body mount location might be bit different .on the 84 frame . just measure and do some test fit with each component and build it from the ground up . Hell a bare frame would be the best way to do it from the ground up anyhow .
It's always been my understanding that it's a bolt-on application, provided that the bodies are the same (club cab or non, long bed or short, etc). But, 'tis possible I am mistaken.
Today I'm able to have the trucks sitting together.So with tape measures of equal length, let the games begin.Spring shackle mounts are factory riveted on.Grade 8 bolts are my only opinion? Correct!!! Next is the front hubs. There is an large nut with a carter pin.How do I go about putting lock/unlock hubs? Great place for information,really thank you all very much.By the way it's an 400 BBlock,do I here 451 when it's time to rebuild?????
Easiest way to go to locking hubs is to switch to a Dana 60 front!! If you want to keep your axle, you'll have to change everything over. It's a different set up from the full time axle you know have.
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