I suggest you do it.
Search for posts by me about RTAB's
check unitedbimmer.com and also search there for posts by me about RTAB's.
The bushings hold the wheel's alignment, if they are worn, they allow the wheels to move OUT of alignment during driving, IE: when you corner hard, hit bumps, accelerate, and brake. RTAB's are very noticeable, and once you replace them, you'll immediately feel a much stiffer rear end.
Get Ground Control shims while you are at it to prevent further wear and limit the bushing's range of motion.
Search the forum about Lower Control Arm Bushings as well (AKA: LCAB or LCA) You might want to replace your tie-rods as well.
Last edited by bitcore; 06-05-2006 at 08:16 AM.