Extension Housing: Service and Repair

Fig. 4 Removing Or Installing Extension Housing Snap Ring:

Fig. 5 Parking Lock Components:

On some models, it is necessary to unload both torsion bars, remove the left torsion bar, then lower one side of the torsion bar crossmember to provide clearance for extension housing removal.

1. On all models, mark parts for reassembly and remove propeller shaft.
2. Remove speedometer pinion and adapter assembly, then drain about two quarts of fluid from transmission.
3. Remove extension housing to crossmember bolts, then raise transmission with jack and remove crossmember.
4. Remove extension housing to transmission bolts. On console shift models, remove torque shaft lower bracket to extension housing bolts. On all models, in the following step, the gearshift must be in L therefore positioning the parking lock control rod rearward so it can be disengaged or engaged with the parking lock sprag.
5. Remove two screws, plate and gasket from bottom of extension housing mounting pad, then spread snap ring from output shaft bearing, Fig. 4, and carefully tap extension housing off output shaft bearing.
6. Slide extension housing off shaft to remove parking sprag and spring, then remove snap ring and slide reaction plug and pin assembly out of housing, Fig. 5.
7. To replace parking lock control rod, refer to VALVE BODY.