NOTE:
Identify each part as it is removed so that each item can be reinstalled in its original location.
Inspect the rocker arm shaft and the rocker arms.
If reused, the rocker arms must be installed in the their original locations.
Remove the rocker shaft bolt before removing the rocker shaft from the rocker shaft holder bridge.
Prior to reassembling, clean all the parts in solvent, dry them, and apply new engine oil to any contact points, the bearing surfaces, and lost motions.
When replacing the rocker arm assembly, remove the fastening hardware from the new rocker arm assembly.

Reverse Shift Fork Clearance Inspection (M/T)
Measure the clearance between the reverse idler gear (A) and the reverse
shift fork (B) with a feeler gauge (C). If the clearance is more than the
service limit, go to step 2.
...
Rear Axle Beam Replacement
Raise and support the vehicle.
Remove the rear wheels.
Remove the rear hub bearing unit.
Remove the parking brake cable bracket (left side) (A), the b ...
Synchro Ring and Gear Inspection (M/T)
Inspect the synchro rings for scoring, cracks, and damage (A).
Inspect the inside of each synchro ring (B) for wear. Inspect the teeth
(C) on each synchro ring for wear (round ...