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Truck 4l60e to TH400 swap

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Old 03-30-2004, 04:08 PM
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Default Truck 4l60e to TH400 swap

my buddy wants to swap me his 4l60e in his truck for a th400 I have laying in my garage, I'm wondering if the driveshaft will be the right length or if he should get a different one from a junk yard, or have his modified. any help would be appeciated.

his truck: 94 GMC 1500 w/ 350 and 4l60e, extended cab.

TH400 donor: 77 Blazer with 400cid and 4WD.

FWIW, I pulled the TH400 working fine out of an 84 Z28, I bought the z from my buddy, he had swapped the TH400 in from my other buddies 77 blazer when his 700r4 went out. I dont think they modified the DS.
Old 03-30-2004, 10:36 PM
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you will have to definently change the yoke but i am not sure on the lenghts. i do know that they are very close though.



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