Chevrolet 1980 Light Duty Truck Repair Manual page 282

(3 5 0)7 A -34 A U TO M A TIC TR A N SM IS S IO N
F ig . 7 A - 1 0 6 B - l n s t a l l i n g D i r e c t C l u t c h D r u m B u s h i n g
J-8092, install direct clutch drum bushing (fig. 7A -106B).
T R A N S M IS S IO N A S S E M B L Y
W hen servicing transm ission use only transmission oil
or , petroleum jelly as lubricants to retain bearings or races
during assembly. Lubricate all bearings, seal rings and
clutch plates prior to assembly.
Transmission Internal Components
1. Install low and reverse clutch piston assembly with
notch in piston installed adjacent to parking pawl.
2. Install seventeen (17) piston return (coil) springs.
LOW AND REVERSE
CLUTCH SUPPORT
LOW AND REVERSE
CLUTCH SUPPORT
RETAINER SPRING
F i g . 7 A - 1 0 7 B - l n s t a l l i n g L o w a n d R e v e r s e C l u t c h S u p p o r t
A s s e m b l y
OVERHAUL M ANUAL '
3. Install spring retainer and retaining ring. U sing tool
J-23327, com press return seat so spring retainer retaining
ring m ay be installed. Install output ring gear rear thrust
bearing in case.
4. Install output ring gear on output shaft.
5. Install reaction carrier to output ring gear front
torrington bearing into output ring gear support.
6. Install output shaft assem bly int case.
o 7. Install reaction carrier assembly into output ring
gear and shaft assembly.
8. Oil and install low reverse clutch steel reaction plates
and face plates, starting w ith a steel plate and alternating
w ith face plates. Install low and reverse clutch support
retainer (anti-clunk) spring. N otch in steel separator plates
should be placed toward bottom o f case.
9. Install low and reverse clutch support assem bly with
position o f notch with low and reverse clutch support
retainer (anti-clunk) spring as show n on Figure 7A -107B .
M ake certain the splines on inner race o f the roller clutch
align with splines on reaction carrier.
10. Install low and reverse roller clutch inner race to
sun gear shell thrust washer.
11. Install low and reverse clutch support to case snap
ring with anti-clunk spring between gap.
12. Install rear thrust w asher and sun gear drive shell
assembly.
13. Install output carrier assembly.
14. Install input ring gear rear thrust washer.
15. Install input ring gear.
16. Install new input ring gear to output shaft snap
ring.
C A U T IO N : Do not over stress snap ring.
17. Install input gear front thrust washer.
18. Install direct clutch assem bly, and special thrust
washer to forward clutch assembly.
19. Install clutch assem blies into case.
NO TICE:
M ake certain forward clutch face plates are
positioned over input ring gear and the tangs on direct
clutch housing are installed into slots on the sun gear
drive shell, or damage m ay occur.
20. Install interm ediate clutch overrun brake band.
21. Install interm ediate clutch pressure plate.
22. Install face and steel interm ediate clutch plates,
starting with a face plate and alternating steel and face.
N otch in steel reaction plates is installed toward selector
lever inner bracket.
23. Install interm ediate clutch cushion spring.
Pum p to D irect C lutch T h ru s t W a s h e r Selection
Procedure
24. T o check for proper thickness o f selective fit thrust
washer between the oil pump cover and direct clutch
assembly, proceed as follows: