Save my car, LS1Tech!
The Best V8 Stories One Small Block at Time
Last edited by ThoR294; May 14, 2013 at 07:38 PM.
I re-installed my poly transmission mount. Transmission was pointing down 3 degrees. I set the rear to point UP 2.65-2.75 degrees. Vibration is now GONE. I have a slight vibration at 90mph.... but that is probably from everything being solid, and it is NO WHERE NEAR as bad as it used to be. THANK GOD I can't believe it took me this long to do this research and figure out how to properly set the angle. I was just setting the rear before *sigh*
Glad to hear you finally got it. I have the same problem! I am going to install my 12 bolt first. I have an ls1 driveshaft that has also balanced. I will order the digital angle finder. How did you exactly measure for the pinion angle?
Derek

for transmission angle, measure there

for rear end angle
https://ls1tech.com/forums/17333728-post22.html
trans was hardest because it was aluminum so i had to physically hold the gauge there haha.






Not sure then man if youve done everything I have lol
