I get a clunking noise from my rearend when slowly letting the clutch out sometimes. I pulled my diff cover off and found that my Trac Lok unit seems to have quite an amount of play. When you turn a tire in either direction there seems to be play inside whether from the clutches or spider gears. Will rebuilding tre unit tighten it up? I purchased the rebuild kit some time ago but never did it because the car allways spins both tires.