Heyo, was just driving home from work, and at highway speed when I apply the gas and decelerate at around 100km an hour or so, the rear end kinda shifts and feels like she’s shaking, left to right.
From what I’ve looked at it could be a rear sway bar, sway bar bushings, upper control arm bushings, or the ball joints in the rear? Is there anything else that could cause that issue? Because I don’t wanna go buying the wrong parts!
Well, it doesn’t happen at anything below 50, and when I let off the gas, it’s like the rear end jumps over to the right, and when I hit the gas it goes to the left again, and when I slow down behind a car, and have to match the speed it just feels like everything is kinda shifting around in my rear end.

 

Also if anyone has like a suspension map, or whatever to see what parts are where on my rear end there that would be cool also!

 

google image suspension diagram wj jeep.
look under your car for any obvious broken bits .
grab everything and give it a shake to find if any parts have movement that should not.

 

Yea it was my lower control arms, pulled the old ones out and I could literally pull the rubber bushing out of the left side lower bolt hookup! Replaced the arms, and now she drives dead straight!

I can let off the gas without almost crashing now! Hahaha