All Except "S/T" Series: Removal
WARNING: This page does not describe the selected car, but rather 28 other vehicles, including the 1988 GMC Vandura Special, 1988 GMC Vandura, 1988 GMC Value Van, 1988 GMC Suburban, and 1988 GMC Safari. However, it is still accessible from the selected car via links, so may be relevant.
- Shift transfer case into 4H and disconnect battery negative cable. Raise vehicle and drain fluid. Remove cotter pin from shift lever swivel. Mark transfer case front and rear output shaft flanges and drive shafts for assembly alignment reference. Remove shafts.
- Disconnect speedometer cable, indicator switch wires, vacuum (hoses) harness at transfer case and speed sensor wire (if equipped). On General Motors automatic transmission models, remove engine strut rod from transfer case (if equipped).
- On all models, remove skid plate (if equipped). Support transfer case and remove rear crossmember. Remove transfer case-to-transmission adapter bolts. Move transfer case assembly rearward until free of transmission output shaft and remove assembly. Remove all gasket material from rear of transmission adapter housing.