Cherokee 2WD L4-150 2.5L VIN H TBI (1988)
Universal Joint: Service and Repair
Ball & Trunnion Type
Disassembly
1.
Lubricate shaft trunnion pin bore, trunnion pin, trunnion ball and needle bearings and trunnion cap with chassis grease. Also, liberally apply grease
to interior of trunnion housing.
2.
Place boot clip on raised, semi-circular boss on shaft. Use rubber bands or string to retain clip during installation.
3.
Install protective boot onto shaft and install one boot retaining strap. Make sure boot is seated on raised shaft boss and boot clip before installing
strap. Also ensure strap is seated in strap groove in boot before tightening.
4.
Install trunnion housing on shaft, then seat protective boot in housing and install remaining boot retaining strap. Ensure boot is fully seated in
housing and strap is seated in strap groove in boot before tightening.
5.
Place shaft in arbor press and start trunnion pin in bore. Carefully press pin into bore until pin is centered in shaft to within 0.006 inch. Pin must
project an equal amount from each side of shaft pin bore. If pin is not centered within 0.006 inch, propeller shaft vibration may result.
6.
Install trunnion ball washer on pin and install trunnion ball and needle bearings on pin.
7.
Install trunnion cap washer and trunnion cap on pin.
8.
Move housing forward and over ball and trunnion assembly. Ensure assembly is properly and completely seated in housing.
9.
Install gasket and plate on housing and bend plate lock tabs into housing slots to retain plate and gasket.
Assembly
1.
Straighten retainer plate lock tabs and remove plate and gasket from trunnion housing.
2.
Cut and remove protective boot retaining straps.
3.
Push trunnion housing and protective boot rearward to expose ball and trunnion assembly.
4.
Remove trunnion cap and cap washer.
5.
Remove trunnion ball, trunnion ball needle bearings and trunnion ball washer.
6.
Remove trunnion pin from pin bore in shaft using an arbor press and suitable adapter.
7.
Remove trunnion housing, protective boot and boot clip from shaft.
8.
Clean all parts in solvent and wipe dry.
