GMC 1976 ZEO 6083 Maintenance Manual page 507

TRANSMISSION 7- 59
FORWARD CLUTCH HOUSING
FORWARD CLUTCH CENTER SEAL
FORWARD CLUTCH OUTER SEAL
11
FORWARD CLUTCH INNER SEAL
FORWARD CLUTCH PISTON
FORWARD CLUTCH RELEASE SPRINGS
SPRING RETAINER
SNAP RING
A-2195
Figure 86-Forward
and direct clutch pistons look almost the same .
Make sure the forward clutch piston is identified
during disassembly so it will be reassembled into
the forward clutch housing. The production
built forward clutch piston can be aluminum or
stamped steel.
2. Lubricate new center piston seal with trans-
mission fluid. Lubricate seal groove in forward
clutch housing with petrolatum and install seal into
clutch housing with lip facing up .
3. Place Forward and Direct Clutch Inner Seal
Protector, J-21362, over forward clutch hub. Install
clutch piston inside Forward and Direct Clutch Pis
ton Installer, J-21409, insert .assembly in forward
clutch housing, and install clutch piston by rotating
it slightly in a clockwise direction until seated .
4. Install sixteen clutch release springs into
spring pockets in clutch piston .
5 . Using Clutch Spring Compressor, J-4670, and
Adapter, J-21664, compress spring retainer with ar-
bor press, being careful that retainer does not catch
in snap ring groove, and install snap ring using Snap
Clutch Piston Components
Ring Pliers, J-8059 or J-5586 . See Figure 85 . Remove
tools.
CAUTION: Make certain clutch release
springs are not leaning. If necessary,
straighten with a small screwdriver.
6. Remove forward clutch assembly from arbor
press and place on work bench.
7. Install the forward clutch hub thrust washers
on the forward clutch hub. Retain with petrolatum .
8. Install forward clutch hub in forward clutch
housing.
9 . Lubricate the dished and five flat steel and five
composition clutch plates with tansmission fluid and
install clutch plates in forward clutch housing. Start
with dished steel plate (O .D. up) and place a flat steel
plate on top of the dished steel plate. Then alternate
composition and flat steel clutch plates .
10 . Install direct clutch hub in forward clutch
housing over clutch plates, and install snap ring .