Chevrolet 1977 10 Series, Repair Manual, Page: 430 / 468

7B-50
OVERHAUL MANUAL
SNAP RING
Fig. 7 B -21 L--Installing Counter Gear Snap Ring
on Tool (Fig. 7B-21L). Using Tool J-22873, push down on
snap ring until it engages groove on shaft. Using snap ring
pliers, carefully expand ring until it just slides onto splines,
then push ring down shaft until it engages groove on shaft.
CAUTION:
Do not over stress snap ring.
4. Position clutch countergear and spacer on shaft and
press countergear onto shaft against snap ring using Tool
J-22873, (Fig. 7B-22L).
NOTE:
C ountergear is a slip fit and pressing may not
be required.
5. Install clutch countergear thrust washer and front
retaining ring using Tool J-22830 and J-22873 (Fig. 7B-21L).
CAUTION:
Do not over stress snap ring. Ring
should be tight in groove without side play.
ASSEMBLY OF TRANSM ISSION
1. Lower the countergear into the case until it rests on
bottom s of case.
2. Place reverse idler gear in transm ission case with gear
teeth tow ard the front. Install idler gear shaft from rear to
front, being careful to have slot in end of shaft in facing down.
Shaft slot face must be at least flush with case.
3. Install m ainshaft assembly into case with rear of shaft
protruding out rear bearing hole in case. Position Tool J-
22874 in clutch gear case opening and engaging front
mainshaft (Fig. 7B-23L). R otate case onto front end.
NOTE:
Install 1st speed gear thrust washer on shaft, if
not previously installed.
4. Install snap ring on bearing O.D . and position rear
mainshaft bearing on shaft. Using Tool J-22874-1 drive
bearing onto shaft and into case (Fig. 7B-23L). R otate case
and remove Tool J-22874-5.
5. Install synchronizer cone on pilot end of mainshaft
and slide rearw ard to clutch hub.
CAUTION:
Make sure three cut out sections o f 4th
speed synchronzier cone align with three clutch
keys in clutch assembly.
6. Install snap ring on drive gear bearing O.D. Index cut
out portion of drive gear teeth to obtain clearance over
countershaft drive gear teeth, and install clutch gear assembly
onto case. Raise mainshaft to get clutch gear started and tap
bearing outer race with plastic tip hammer.
Fig. 7B -22L--lnstalling Clutch Countergear
Fig. 7 B-23 L—I nsta 11 i ng M ainsh aft Rear Bearing