i am gettin a vibration around 90+. i never got it before. i installed pacesetter lt's and i know 1 side is almost touching a part of the tranny casing. could that be it some how or could it be somethin else?? its not the rims or the tires. it does it on both of my setups. i can feel it and hear it.

 

See if you could mark that spot with a sharpie take it out again see if it rubs.

 

what about the x-pipe? Is it a true vibration? Tinny sounding?

 

did it do it before you put the headers on

 

possibly driveline angle?

 

It could be your driveshaft, that would explain why it only does it at high speeds.

 

See that's what I was thinking too. I had the vibration and it was taken care of with the Belltech driveline kit.

 

it didnt do it before the headers tho. i used to take it up close to 130 and had no problems.

 

i do think i need to change the diveshaft angle but its not causing the vibration at hi speeds only at takeoff. does anyone know where i can get a spacer to change the angle??

 

Check that exhaust had a similar problem and my y-pipe was rubbing, never put the two together but since I adjusted it havent felt it.