Positraction chatter is normal for limited slip and positraction differentials. Both rear tires must measure the same height from the ground to the top of the wheel in order for the differential to function properly without premature wear. Limited slip additive or friction modifier for limited slip differentials must be used with the oil to reduce postraction chatter in the event that the oil is changed.
Mechanical locking differentials will bang and clunk during normal operation. Both rear tires must measure the same height from the ground to the top of the wheel in order for a locking differential to function poperly.
<BRAND NEW> D-44 Powerlock Assembled: now available (Comes completely built with heavy duty disks loaded in, also comes with a tube of LSD additive. For any and all new parts, We sell them individually, specific prices coming soon Email or call for questions) – $500.00
#44 Powerlock New 30 Spline full gear set. -$350.00
#44 Powerlock disc kit with 4 tapered discs. –$140.00
#44 Powerlock solid cross-shafts (Used, includes 2) – $25.00
#44 Powerlock cross-shafts with holes (Used, includes 2) – $25.00
#44 Powerlock New Centering Pin Assembly – $15.00
#44 Spyder gear set (Used, includes 4) – $50.00
#44 Side cups (used, includes 2) – $20.00
Rebuilt #44 Powerlock, 19 spline, Used case, New disc kit, used gear set. Includes additive — $400.00
To understand more about the Powerlock differential you can visit the Willys Motor Service Bulletin no.500 here: