dom1n1c

Alright guys, so i just got done installing a new pair of leaf springs and air shocks with poly bushings on my ride. When im driving around doesnt matter if im on the pedal or coasting in gear i hear a weird metal to metal light grinding type sound coming from both sides from the rear. I cannot tell what could be causing this. The sound wasnt there before. I dont know what could be causing this

Bluevista

Does the car sit higher in the rear now?
I'd check the rear U-joint first to make sure it isn't bad or rubbing on the pinion nut or something from the driveshaft geometry being off it sits a lot higher.
If it's not that it could be several things including the front U-joint, differential , fluid level, pinion and axle bearings and brakes just off the top of my head.

Just my two cents worth.
I'm sure not not a rear end expert, in fact I'm not what I'd consider an expert at anything but pounding nails.

Dokks74

Could be the poly bushings. Did you grease them good or use anti-seize on them?

Lady72nRob71

Do you hear it over bumps, or all the time; sound varying with speed?
Does it change when gently applying the brakes?

Dokks74

My experience with poly is that it is very noisy..