Rear End Quiver

[MidnightBlue]

I have a 2006 Pontiac Grand Prix GT1.....Everytime I hit a bump or a slight hole in the gound my rear end will quiver like it has no control....I was wondering if anyone else has had this problem.....If anyone could help me out with would be awesome!!!

[Bio248]

your rear alignment is more than likely out of whack.

[MidnightBlue]

Ive already had an alignment job done on it

[Bio248]

then something is broke somewhere. the rear end just doesnt wobble over bumps when everything is correct.

[MidnightBlue]

I alrady figured that something is broke i just cant seem to find it and i was seeing if someone else has had the same problem

[Bio248]

my next best guess is your trailing arms are bent or your tire wear is bad.

[Reefer82]

My gs has a bent trailing arm and has the exact same handling issue as you, time for gmpp kit! Check out shocks though, mine are weak as well so I imagine its a combo of both

[MidnightBlue]

Thanks that helps do u know where u can get it from??

[matt5112]

GM dealership

GM part #: 12498649

[MidnightBlue]

I work at a GM dealer and they are discontinued and not one in the nation has the part to purchase.....anywhere else to find it