Pontiac FIREBIRD 1972 Service Manual page 855

7B-16 1972 PONTIAC SERVICE MANUAL
Fig. 7 8 - 1 4 Loading Bearing Rollers into Main Drive Gear
and install blocker ring over synchronizing surface of
main drive gear with its clutching teeth toward gear
(Fig. 7B-14).
6. Pilot main drive gear assembly (minus front bearing)
over front of mainshaft, making sure that notches of
blocker ring align with keys in 2nd & 3rd synchro-
nizer assembly.
7. Place gasket on extension housing, holding in place
with grease and, from rear of case, assemble main
drive gear, mainshaft and extension housing to the
case as an assembly, make sure that main drive gear
teeth engage the teeth of the countergear anti-lash
plate.
8. Rotate extension housing and install reverse idler
shaft and its woodruff key so that end flat of shaft is
flush with rear face of case.
9.
Align extension housing, install housing-to-case bolts
(5) and torque them to 45 lb. ft.
Position oil slinger, inner lip facing forward, on main
drive gear stem, install front bearing outer snap ring
to bearing and slide bearing onto stem of main drive
gear and into case bore.
Install snap ring to main drive gear stem and install
main drive gear bearing retainer and its gasket to
case. Install and torque retainer bolts and lock wash-
ers (4) to 20 lb. ft.
NOTE: Retainer oil return hole should be at 6
o'clock.
Shift both synchronizer sleeves to neutral position
and install side cover assembly and its gasket to case.
While installing cover, be sure that shifter forks align
with their synchronizer sleeve grooves.
Install and torque all side cover attaching bolts (7) to
20 lb. ft.
INSTALL
1. Raise transmission into position and slide forward,
piloting main drive gear bearing retainer into clutch
housing and index transmission with Transmission
Aligning Studs J 1126, which were installed to facili-
tate removal.
2. Install lower transmission-to-clutch housing bolts,
remove J 1126 studs and install two upper transmis-
sion-to-clutch housing bolts. Torque bolts to 55 Ib. ft.
3. Position shifter assembly-to-extension housing
shifter support and retain with its two (2) attaching
bolts. Torque upper bolt to 45 lb. ft.; lower bolt to 30
lb. ft.
4. Support engine and raise slightly until crossmember
may be repositioned. Then, install frame-to-cross-
member attaching bolts and nuts, torque to 35 Ib. ft.
and remove engine support.
5. Install crossmember-to-rear mounting assembly
bolts, torque to 55 lb. ft., connect speedometer cable
to driven gear fitting and connect electrical leads.
6. Install propeller shaft assembly as outlined in Section
4E.
7. Fill transmission with lubricant (level should be 1/2
inch below filler plug hole), install and tighten filler
plug to 15 lb. ft. torque and remove vehicle from hoist.
8. Check operation of transmission.