Copyright © 1996 General Motors Corp. 6–37
REBUILD OF SUBASSEMBLIES
NOTE:
Swaging pressure varies with the size of the pinion
pins (approximately two tons for front carriers;
three tons for center and rear carriers). While ap-
plying pressure, rotate the pinions and feel for re-
duction of end play. The pinions must rotate freely
and have 0.008–0.031 inch (0.20–0.79 mm) end play
after swaging the pins.
(11) Swage the remaining pinion pin ends as
instructed in Step (10).
6–17. CLUTCH STACK MEASUREMENT
a. Assembly Line
(1) When mass production overhaul prac-
tices are used, the stack measurement procedure may
be more convenient.
(2) The stack dimension method is the only
method available for determining running clearance for:
• Forward clutch assemblies using a wave
plate (models with an identification groove
in the clutch housing)
• Second clutch (all models)
(3) To obtain accurate dimensions, the stack
to be measured must have new clutch plates, and the
applied load must be evenly distributed.
b. Forward Clutch
(1) Stack the forward clutch plates and
fourth clutch hub as shown in Figure 6–62 or 6–63.
(2) Apply the specified load, and measure
Dimension X.
(3) From the applicable table in Figure 6–62
or 6–63, select the forward clutch piston. Use the parts
measured, and the selected piston, in the forward
clutch assembly (Paragraph 6–10a).
c. Fourth Clutch
(1) Stack the fourth clutch plates and back-
plate as shown in Figure 6–64.
Figure 6–62. Determining Forward Clutch Piston
Thickness (Models Not Using a Wave Plate)
Figure 6–63. Determining Forward Clutch Piston
Thickness (Models Using a Wave Plate)
X
PRESS 980–1020 LBS
(4359–4537 N)
PLATE
SLEEVE
FOURTH-CLUTCH
DRIVE HUB
INTERNAL-SPLINED
CLUTCH PLATE (5)
EXTERNAL-TANGED
CLUTCH PLATE (5)
BENCH
V02968
DIMENSION X USE PISTON
C
B
A
0.9825–1.0065 in.
(24.956–25.565 mm)
1.0065–1.0325 in.
(25.565–26.226 mm)
1.0325–1.0585 in.
(26.226–26.886 mm)
X
PRESS 980–1020 LBS
(4359–4537 N)
PLATE
SLEEVE
FOURTH-CLUTCH
DRIVE HUB
INTERNAL-SPLINED
CLUTCH PLATE (5)
EXTERNAL-TANGED
CLUTCH PLATE (5)
BENCH
V02969
DIMENSION X USE PISTON
EF
E
DE
0.984–1.010 in.
(24.99–25.65 mm)
1.010–1.046 in.
(25.65–26.57 mm)
1.046–1.072 in.
(26.57–27.23 mm)