Chevrolet 70 1969 Series, Shop Manual

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TRANSMISSION AND CLUTCH 7-17
MAIN DRIVE GEAR AND TUBE ASSEMBLY
MAIN DRIVE GEAR BEARING CAP
CLUTCH HOUSING
MAINSHAFT 3RD SPEED GEAR
MAINSHAFT 4TH SPEED GEAR _
ilNSHAFT 1ST SPEED GEAR
SHIFT BAR HOUSING ASSEMBLY
PARKING BRAKE ASSEMBLY-
TRANSMISSION CASE
MAINSHAFT
COUNTERSHAFT DRIVE GEAR
MAINSHAFT REAR OIL SEAL
T-5671
F ig u re I N — T ra n sm is sio n C ro ss-S e c tio n
2. Remove 4th and 5th synchronizer assembly (fig.
12N).
NOTE: Bottom synchronizer cup may stay on
mainshaft.
3. Remove 4th and 5th shift hub sleeve retainer ring,
hub sleeve and 4th speed gear (fig. 13N).
4. Remove 3rd speed gear retainer ring, 3rd speed gear
and locating washer.
5. Remove 2nd and 3rd synchronizer assembly, 2nd and
3rd shift hub sleeve retainer ring and hub sleeve (fig.
13N).
6. Remove 2nd gear retainer ring, 2nd gear and locating
washer (fig. 15N).
Shift Bar Housing Disassembly
1. Remove 1st and reverse shift lug lockscrew, then re­
move 1st and reverse shift fork, rod and lug from
shift rod support (fig. 16N).
2. Using a small pin or drift, remove 2nd and 3rd shift
fork roll pin (fig. 17N).
3. Remove 2nd and 3rd shift rod.
C A U T IO N : D O N O T L O SE IN T E R L O C K C R O S S
P IN O R 2 N D SP E E D O V E R S H IF T SP A C E R .
4. Remove 4th and 5th shift fork roll pin, shaft rod and
fork.
CHEVROLET SERIES 70-80 HEAVY DUTY TRUCK SH O P M A N U A L