Copyright © 1996 General Motors Corp. 7–3
ASSEMBLY OF TRANSMISSION
(2) If the clearance is excessive (larger end
of gauge will pass between the snapring and the back-
plate), new plates may be installed to reduce the clear-
ance. If the clearance is still excessive after new
internal-splined and external-tanged clutch plates are
installed, a thicker backplate is required.
(3) If the clearance is insufficient (small end
of gauge will not enter), a thinner backplate is re-
quired.
Figure 7–4. Installing First Clutch Backplate
(4) Backplates are stamped with identifying
numbers (1, 2, 3, 4, 5 (or no mark), or 6). Thicknesses
are as follows:
Figure 7–5. Checking First Clutch
Running Clearance
H02975
BACKPLATE
RING GEAR
Identification 1, 4 0.683 to 0.693 inch
(17.35 to 17.60 mm)
2, 5, or No Stamp 0.647 to 0.657 inch
Identification (16.43 to 16.69 mm)
Identification 3, 6 0.611 to 0.621 inch
(15.52 to 15.77 mm)
H02976
J 23715
RING
GEAR
BACKPLATE
SNAPRING
Figure 7–3. Installing First Clutch Plates Onto Rear Planetary Ring Gear
H02974
INTERNAL-SPLINED
PLATE
EXTERNAL-TANGED
PLATE
RING GEAR
INTERNAL-SPLINED
PLATE
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