read end dance

[turbobuick1035]

Can anyone tell me why this is happening...I have a white 87-T that when under under power or under boost passing 85 or 90 mph the back end starts to dance around and i am not able to stay on it because of that....the car is fine when i creep up to that speed and is fine all the way to 130 .....but not when im on it and the there is full power to the rear...

 

[Louie L.]

What tires are on it? BFG's??

Over the years I have found that bad control arm bushings and or tires can cause what you describe.

 

[turbobuick1035]

yeah ...there BFG 275's the tires are old and don't hook for nothin....i'm gonna take care of that with some MT drag radials...so you think the BFG's might be doing that?