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HYDRA – MATIC 4L40 – E / 5L40 – E

433 INPUT HOUSING ASSEMBLY
438 COAST CLUTCH PISTON ASSEMBLY
439 FORWARD AND COAST CLUTCH RETURN SPRING ASM.
440 RETURN SPRING RETAINING SNAP RING
J-45132 COAST CLUTCH PISTON LIP SEAL PROTECTOR
AUTOMATIC TRANSMISSION SERVICE GROUP
Technical Service Information
60
Copyright © 2002 ATSG
433
438
J-45132
439
440
COMPONENT REBUILD
FORWARD AND COAST CLUTCH HOUSING (CONT'D)
Figure 87 Figure 88
10. Install J-45132 seal protector on forward clutch
housing, as shown in Figure 87.
11. Lubricate the molded inner seal and the inside
diameter of the coast clutch piston with small
amount of Trans-Jel®. (See Figure 87).
12. Install the coast clutch piston, as shown in
Figure 87, by rotating and pushing down into
position.
13. Remove J-45132 seal protector.
14. Install the forward/coast clutch return spring
and retainer assembly, as shown in Figure 87.
15. Using the foot press, compress return spring
and install the snap ring.
Note: GM recommends a "New" snap ring
in this location.
16. Ensure that the snap ring is fully seated and
release the foot press (See Figures 87 and 88).
17. Measure from the top of the forward clutch
housing to the top of the coast clutch piston, as
shown in Figure 89.
Notice: Record this as dimension "C".
18. Measure from the top of the forward clutch
housing to the top of the forward clutch piston,
as shown in Figure 89.
Notice: Record this as dimension "B".
19. Subtract dimension "C" from dimension "B".
This answer is now dimension "A".
Notice: Record dimension "A".
Copyright © 2002 ATSG

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