[Timberwarp]

Aside from the kit (want to do it a little cheaper ), 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?

 

[Mr. INTENSE]

You also will need the torrington bearing, spacer and end cover seal.

 

[Enforcer]

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