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Discussion Starter · #1 ·
Aside from the kit (want to do it a little cheaper :D ), what would be needed to swap a 4t65e to a 4t65HD with 3.29 gears?

CV axle (passanger side)
HD diff case
HD diff
HD Output Shaft

Anything else?
 

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Why do you need an HD out put shaft?

I have used a 98 HD tranny and 99 non-HD(with HD LSD)From what I could tell there was no difference in length in the shafts. What "could" the problem be if you used the non-HD shaft?

The main reason I ask is because I had NO problems on 10k miles of use.


And dont forget some of that yellow INTENSE assembly lube-that stuff rocked ;) . Much better than vaseline :eek:
 
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