LUBRICATION AND MAINTENANCE
J LUBRICANT LEVEL Determine the axle differential housing lubricant level according to the following procedure. (1) Raise and support the vehicle. (2) Remove the fill-hole plug (Fig. 6 and 7) from the axle differential housing cover. The gear lubricant should be 13 mm (1/2 inch) below the bottom edge of the fill hole.
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(2) Place a container under the axle differential housing. (3) Remove the axle differential housing cover bolts. Remove the housing cover. (4) Allow the axle gear lubricant to completely drain into the container. CAUTION: Do not flush a rear axle Trac-Lok differential. Trac-Lok differentials may be cleaned only by disassembling the unit and wiping the components with clean, lint-free cloth. (5) Flush the inside of the differential housing with a flushing oil. Do not use water, steam, kerosene or gasoline for flushing. (6) Remove any residual RTV sealant/gasket material from the differential housing and cover. Thoroughly clean the contact surfaces with mineral spirits and dry the surfaces completely. (7) Apply a bead of MOPAR RTV Sealant, or an equivalent sealant, around the bolt circle on the housing and on the cover (Fig. 8).
Fig. 6 Rear Axle—Typical
Fig. 7 Front Axle (4WD)—Typical (3) If not acceptable, raise the lubricant level to 13 mm (1/2 inch) below the bottom edge of the fill hole. Add lubricant in small amounts to raise the level. (4) Install the fill-hole plug in the differential housing cover. Tighten the plug with 34 N°m (25 ft. lbs.) torque. (5) Remove the support and lower the vehicle.
LUBRICANT CHANGE When it becomes necessary to change the axle lubricant in a Jeep front or rear axle, use the following procedure. (1) Raise and support the vehicle.
Fig. 8 RTV Sealant Application—Typical If differential housing cover is not installed within 20 minutes after applying sealant, the sealant must be removed and another bead applied. (8) Install the cover on the differential housing with the attaching bolts (Fig. 9). Tighten the cover bolts with 47 Nzm (35 ft. lbs.) torque. (9) Remove the fill-hole plug and add the replacement gear lubricant to the differential housing. Refer to Specifications above. (10) Install the fill-hole plug. Tighten the plug with 34 N°m (25 ft. lbs.) torque.