Begin reassembly with the rear of the case. If the
case contains a low-and-reverse clutch that has not been
serviced prior to this point, disassemble and clean it.
Install new seals on the clutch apply piston. Install the
piston, as well as the friction discs and steel plates. Make
sure the clutch clearance is correct and install the
retaining snap ring. If the unit uses a rear band, install the
band in the case but do not install the band apply
linkage. See Figure 17-41.
Install the rear planetary gearsets and the output shaft.
Be careful to align all parts before installing any snap rings
or bolts. After the snap rings or bolts are in place, make
sure the output shaft will turn. Also, make sure that all the
thrust washers are installed correctly.
If a center support is used, install it now. Install the
center support snap ring and/or bolts and make sure the
output shaft will still turn.
In many designs, the clutches must be assembled
before they are installed in the case. The height of the
assembly may be checked to ensure that it meets specifi-
cations. With some transmissions and transaxles, the
clutches and front gearsets will be assembled prior to
installation. Install any such assembly at this point. See
Figure 17-42. Also, if the unit has a front band, install it now.
If the transmission or transaxle has a set of clutch plates
and friction discs directly behind the front pump, install it
now, making sure to alternate discs and plates. Next, place
the proper gasket on the case and install the front pump.
As you slowly tighten the pump fasteners, check that
the input and output shafts can be turned by hand. If either
shaft begins to bind, find the cause and correct it before
proceeding. If a transaxle is being worked on, install the
chain and sprockets now. Also, install the transaxle transfer
gears, if applicable. See Figure 17-43.
416 Automatic Transmissions and Transaxles
Fixture
Case
Install
rear band
Install band
retaining pin
Figure 17-41. The location of a band in the case on one type
of transmission is shown. In most instances, the band should be
installed before installing the drum or gearset member on which
it will ride. (DaimlerChrysler)
Check bushing
wear
Sun
gear
Pull out
worn
bushing
Overdrive
carrier
Special
puller jaws
Slide
hammer
Driver
Adapter
Force new
bushing into
overdrive carrier
A
B
C
Figure 17-40. Check all bushings for wear and replace those
that are worn. A—Checking a sun gear bushing. B—Removing
a planet carrier bushing. C—Installing a new planet carrier
bushing. (DaimlerChrysler, General Motors)
Note: This step does not apply to
transaxles with a valve body–mounted
pump.