Dodge RAM TRUCK 1500 1995 Service Manual page 1457

21 - 174 42RH TRANSMISSION OVERHAUL
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(3) Remove top pressure plate, clutch discs, steel
plates, bottom pressure plate and wave spring (Fig.
60).
(4) Remove clutch piston. Grasp piston and rotate
piston up and out of retainer.
(5) Remove and discard piston seals.
(6) Remove input shaft snap ring (Fig. 61).
Fig. 61 Input Shaft Snap Ring Removal/Installation
(7) Press input shaft out of retainer with shop
press and suitable size press tool (Fig. 62).
J9121-150
Fig. 62 Removing Input Shaft From Rear Clutch
Retainer
(8) Remove input shaft front/rear seal rings.
REAR CLUTCH INSPECTION
Clean the clutch components with solvent and dry
them with compressed air. Do not use rags or shop
towels to dry any of the clutch parts. Lint from such
materials will adhere to component surfaces and
could restrict or block fluid passages after assembly.
Replace the clutch discs if warped, worn, scored,
burned/charred, the lugs are damaged, or if the fac­
ing is flaking off. Replace the top and bottom pres­
sure plates if scored, warped, or cracked. Be sure the
driving lugs on the pressure and clutch plates are
also in good condition. The lugs must not be bent,
cracked or damaged in any way.
Replace the piston spring and wave spring if either
part is distorted, warped or broken.
Check the lug grooves in the clutch retainer. The
clutch and pressure plates should slide freely in the
slots. Replace the retainer if the grooves are worn or
damaged. Also check action of the check ball in the
piston. The check ball must move freely and not
stick.
Replace the retainer bushing if worn, scored, or
doubt exists about bushing condition.
Inspect the piston and retainer seal surfaces for
nicks or scratches. Minor scratches can be removed
with crocus cloth. However, replace the piston and/or
retainer if the seal surfaces are seriously scored.
Check condition of the fiber thrust washer and
metal intermediate shaft thrust washer. Replace ei­
ther washer if worn or damaged.
Check condition of the seal rings on the input shaft
and clutch retainer hub. Replace the seal rings only
if obviously damaged. The input shaft front seal ring
is teflon with chamfered ends. The rear ring is metal
with interlocking ends.
Check the input shaft for wear, or damage. Replace
the shaft if worn, scored or damaged in any way.
REAR CLUTCH ASSEMBLY
(1) Soak clutch discs in transmission fluid.
(2) Install new seal rings on clutch retainer hub
and input shaft (Figs. 63 and 64).
J9121-538
Fig. 63 Rear Clutch Retainer/Input Shaft Seal Ring
Installation
(a) Be sure clutch hub retainer seal ring is fully
seated in groove (Fig. 63). Ring must not be
twisted, or distorted.