Draining & Refilling
CAUTION:
DO NOT
clean internal components of differential case with solvent. Clean components with lint-free shop towel only. On Aerostar with plastic rear cover, replace rear cover when removed.
Drive vehicle until lubricant is warm. Remove rear cover to drain lubricant. Remove gasket. Clean all lubricant from gasket surfaces. Install new gasket. Apply continuous bead of silicone sealant to axle housing, ensuring bead is inside of bolt hole pattern. Install rear cover within 15 minutes of silicone application. Tighten bolts to specification. See TORQUE SPECIFICATIONS table. Fill axle housing with lubricant until level with bottom of fill hole.