Pontiac firebird 1968 - Page 417

7C-8
1968 PONTIAC SERVICE MANUAL
TRANSMISSION-ASSEMBLE
1. Install countergear to cast bronze thrust
washer.
2. Install countergear assembly into case. Install
countergear shaft from rear of case, making certain
woodruff key is in position.
3. Install reverse idler gear, shaft and woodruff
key from rear of case.
4. Install extension housing. Spread snap ring in
housing to allow snap ring to drop around rear bear-
ing (Fig. 7C-7). Press on end of mainshaft until
snap ring engages groove in rear bearing.
5. Install fourteen (14) bearing rollers in main
drive gear, using heavy grease to hold bearings in
place (Fig. 7C-16).
6. Assemble fourth speed blocking ring on main
drive gear.
7. Pilot main drive gear and fourth speed blocking
ring over front of mainshaft.
CAUTION: Make certain notches in blocking ring
align with keys in third-fourth synchronizer.
Fig. 7C-16 Loading Bearings into Main Drive Gear
8. Using heavy grease, install rear bearing re-
tainer to case gasket.
9. Install extension housing and mainshaft assem-
bly into case. Install extension housing to case bolts,
tcrquing to 45 lb. ft.
10. Install front bearing onto main drive gear.
Outer snap ring groove must be toward front of gear.
11. Install retaining snap ring.
12. Install front bearing retainer, gasket and four
attaching bolts, torquing bolts to 10 lb. ft.
NOTE: The retainer oil return hole must be at
bottom of case.
Fig. 7C-17 Drive Line Damper