I. Extension Housing

INSTALL OR CONNECT
1. Funnel (132).
2. Selective shim (131). Refer to "Countershaft Extension" under "Shimming Procedures" in this section.
3. Countershaft extension bearing race (130).





4. Reverse idler shaft (138).
5. Roller bearing (137).
6. Reverse idler gear (136).





7. Reverse idler shaft bracket (134).
8. Reverse idler shaft bracket bolts (133).
- Apply sealant GM P/N 12345382 to threads of bolts (133).

Tighten
- Bolts (133) to 25 N.m (18 lb. ft.).

9. Extension housing (86).
- Apply sealant GM P/N 12345739 at extension housing to transmission case mating surface.
- Align 5th/6th and reverse shift rail (140) with extension housing bore.
10. Extension housing bolts (100) and transmission bumper (177).
- Apply sealant GM P/N 12346004 to threads of bolts retaining transmission bumper.

Tighten
- Bolts (100) to 35 N.m (26 lb. ft.).

11. Rear offset shift lever (93) and isolator cup (95).
12. Rear offset shift lever roll pin (94).