loose rear end when shifting

[tdubya]

Anyone have problems with the rear end being squirrely when shifting? Started having a problem today with this. Even when shifting smooth, the back end does a little fishtail. It's bad enough to make me park it. Tire pressure good, no issues noted with tires on visual inspection. Does it both on up and downshifting.

 

[mach1yellow]

yes i have the same problem, im not sure what is causing it yet, i have a broken motor mount and i believe the engine is twisting and changing the pinion angle for the drive shaft. if you have a broken mount let me know

 

[hicks92lx3]

mine did that when the rear lower control arms went out does it pop in the back if you slam a gear

 

[i8yoboty]

Check your torque boxes. A few busted welds could do that. If so, get Battle Boxes installed and it will cure it.