Pontiac Fiero 1988 Service Manual page 853

7B2A-8 5-SPEED ISUZU MANUAL TRANSAXLE
Figure 24 Rear Output Bearing
G34024-7B2 AN
Figure 25 Collar,
Reverse
and
1st
Gear
Differential Case
Disassembly
1. Remove the side bearing using J 22888 with
puller leg kit J 22888-30 and pilot J 2241-11
(Figure 26).
2. Remove ten bolts, and remove the ring gear.
Discard the ring gear bolts.
3. Using a screwdriver, pry the speedometer drive
gear from the differential case. Do not reuse the
speedometer drive gear.
4. Drive out the lockpin, and pull out the cross pin.
5. Remove the pinion gears and thrust washers,
and remove the side gears and thrust washers.
Figure 26 Differential Side Bearings
Cleaning and Inspection
Wash all parts thoroughly in clean solvent. Be
sure all old lubricant, metallic particles, dirt, or for-
eign material are removed from the surfaces of every
part. Apply compressed air to each oil feed port and
channel in each case half to remove any obstructions
or cleaning solvent residue.
Inspect all gear teeth for signs of excessive wear
or damage and check all gear splines for burrs, nicks,
wear or damage. Remove minor nicks or scratches
with an oil stone. Replace any part exhibiting exces-
sive wear or damage.
Inspect all thrust washers for evidence of exces-
sive wear, distortion or damage. Replace any of these
€
parts if they exhibit these conditions.
Inspect the two case halves for cracks, porosity,
damaged mating surfaces, stripped bolt threads, or
distortion. Replace any part that exhibits these condi-
tions.
Inspect the condition of all needle, roller and
thrust bearings. Wash bearings thoroughly in a clean-
ing solvent. Apply compressed air to bearings.
NOTICE:
Do not allow the bearings to spin.
Turn them slowly by hand. Spinning bearings
may damage the rollers.
Lubricate bearing with a light oil and check
thern for roughness by slowly turning the race by
hand.
The synchronizer hubs and sliding sleeves are a
selected assembly and should be kept together as orig-
inally assembled, but the keys and springs may be
replaced if worn or broken. When reassembling syn-
chronizer assemblies, each insert spring should sup-
port all three keys and each opening portion of the
insert spring should face the opposite direction from
the other.