Express 1500 RWD V8-5.3L (2008)
8. On axles with a locking differential, remove the shaft part way. Rotate the case until the pinion shaft touches the housing.
9. On axles with a locking differential, use a screwdriver, or a similar tool, in order to enter the differential case and rotate the rear axle shaft lock (1)
until the lock aligns with the thrust block opening (2).
10. Push the flange of the axle shaft into the axle housing.
