K 2500 Truck 4WD V8-379 6.2L DSL VIN C FI (1989)
Extension Housing: Service and Repair
1. Remove driveshaft, and tunnel strap, if equipped.
2. Using suitable tool, pry out lip oil seal.
3. Coat outer casting of new oil seal with suitable sealer and drive into place with seal installer tool No. J-21426 or equivalent.
4. Install tunnel strap if used, then install driveshaft.
