Whenever i coast to a stop light, you can hear like a clicking in the rear end it. ive heard that it could be the brake calipers, but it kinda sounds like the limited slip is tryin to catch, but idk and advice

 

Im guessing u joints. Search and you will find instructions on how to check to see if they are bad. When mine went it was more of a "whup whup whup" sound in gear and when coasting in neutral.

 

The LSD would only make noise when turning. Sounds like ujoints (as mentioned) or maybe a rear wheel bearing.

To check the ujoints; park car with tranny in 1st gear and parking brake off, then rock the car back and forth while listening for the noise.

To check the rear wheel bearings; driving slowly jerk wheel back and forth to see if sound increases/decreases.

 

My clicking about 3 years ago turned out to be u-joints

 

ive been through 3 drivelines in the life of my rx, and driveline u-joints going out will be acompanied by severe vibration. if it vibrates at speed, then its probably the u joints, check the wheel bearings next.

isaac