Download Manual locking hubs engage and disengage front wheels from axle shafts on 4WD vehicles. These hubs are are optional. When hubs are engaged in LOCK position, wheels and axle shafts rotate together. When hubs are disengaged or unlocked in FREE position, front wheels free-wheel on hub bearings. REMOVAL & INSTALLATION MANUAL LOCKING HUB Removal 1) Position locking hub in FREE position. Remove cover-to- body retaining bolts. Remove cover assembly and gasket. 2) Remove snap ring from drive axle. Remove body-to-hub retaining bolts. Remove body and gasket. See Fig. 1. CAUTION: Lubricate sliding surfaces with multipurpose grease, but DO NOT pack hub with grease.