H D sonnax truck 4L65E

[Mechanic421]

Has anybody here built or had built the heavy duty truck 4l65e transmission on sonnax website. If so your thoughts. I have ordered all my parts for the build . It will be my first transmission but I will have help from a experienced builder!

 

[Chubbs]

Do some research on the sunshell. Even if you opted for the HD sunshell, I have read that even a OEM sunshell would hold if only for added oiling holes. The beast is better then OEM, obviously, but even a HD sunshell could benefit from improved lubrication. It requires simply drilling a few small holes in strategic locations but I've only recalled this info in passing. I haven't actually spent any time on its study.

I also suggest examining & testing the check ball capsule for leakage. This is important if you don't already know.

http://www.hotrodders.com/forum/4l60e-check-ball-capsule-leaking-222133.html