Quote Originally Posted by nos4blood70 View Post
Try a shift kit before you go tearing that transmission out. Mine had similar behavior and the shift kit fixed it.

The rough idle in drive could be other issues such as a dirty throttle body or IAC, etc.

Can't shift kits increase the chance of a hard failure? As far as TB and IAC go I've been going through this since before I ported and polished my TB, while doing so I cleaned the whole thing out.


Oh and i forgot to mention I'm approaching 140k!