Low And Reverse Clutch Housing Assembly - Chevrolet 1980 Light Duty Truck Repair Manual

Figure 7A1-86 Installing Rear Unit Parts
Figure 7A1-87 Removing Lo and Reverse Clutch Spring
Retaining Snap Ring
Low and Reverse Clutch Housing
Assembly (Figure 7A1-88).
Disassem bly
1. Compress low and reverse clutch spring retainer,
remove snap ring and retainer and inspect for damage or
distortion. (Figure 7A 1-87).
2. R em ove waved spring. (Figure 7A 1-89).
3. R em ove low and reverse clutch piston.
4. R em ove outer and inner piston seals. (Figures 7A1-
90 and 7A1-91).
5. R em ove clutch apply ring.
Inspection
1. Inspect low and reverse clutch housing for damage,
plugged feed hole.
2. Inspect low and reverse clutch housing bushing for
damage or scoring.
OUTPUT SHAFT
groove for damage or burrs. R em ove any burrs on splines
or snap ring groove.
apply ring assembly for distortion, cracks or damage.
P A R KIN G PAWL
LUGS
damage.
ring for damage.
Reassem bly
piston.
facing away from clutch apply ring side. (Figure 7A 1-90 and
7A 1-91).
Installing tool (Figure 7A 1 -119) install low and reverse
clutch piston, w hile rotating and pushing dow n into place.
(Figure 7A 1-92).
607C81
94).
7A 1-94).
In stallatio n
the
com position-faced and flat steel clutch plates. See Figure
7A 1-96.
ring in case. (Figure 7A 1-95).
aligning reverse clutch housing feed hole to reverse clutch
case feed passage, using J-25012. (Figure 7A 1-97). If the low
and reverse clutch housing does not seat past the case snap
ring groove, proceed as follows:
input drum and rear sun gear in case.
with input drum, to align roller clutch race and low and
reverse clutch hub splines. (Figure 7A 1-98).
AUTOMATIC TRANSMISSION (200) 7A1-19
3. Inspect low and reverse clutch splines and snap ring
4. Inspect low and reverse clutch piston and clutch
NOTICE:
The apply ring is identified by a number
located on the ring. See 200 clutch plate and apply ring
usage chart for apply ring identification. Figure 7A1-
96.
5. Inspect low and reverse clutch spring retainer for
6. Inspect waved spring for damage.
7. Inspect low and reverse clutch housing to case spacer
1. Install clutch apply ring on low and reverse clutch
2. Install new outer and inner seals on piston with lips
3. Install seal protector J-25011.
NOTICE:
A pply transmission fluid to all clutch seals
before reassembly.
NOTICE:
Flat screwdriver surface area must be sm ooth
to prevent dam aging outer seal.
4. U sing flat edged small screwdriver, or Piston
5. R em ove seal protector J-25011.
6. Install waved release spring. (Figure 7A 1-93).
7. Install retainer, cupped faced down. (Figure 7A 1-
8. Compress retainer and install snap ring. (Figure
1. Oil and install the lo and reverse clutch plates into
case, starting with a flat
2. Install low and reverse clutch housing to case spacer
3. Install low and reverse clutch housing assembly
a. R em ove tool J-25012.
b. U sing rear sun gear and input drum as a tool, install
c. R otate rear sun gear back and forth, tapping lightly
steel and alternating