The gear oil in your differential runs down the axle tubes to lube the rear axle bearings, that's why it's important you keep your diff topped off. Its not a bad idea to dip them in gear oil before you install them though.

Dennis

Last edited by DennisThompson; 01/08/12 10:34 PM.

95 Sportage, gone but not forgotten.
98 Jeep TJ, 4" Zone springs with RC Long arms, Ford 8.8", 4.56 gears & Detroit locker rear, D30, 4.56 & Detroit Trutrack front.