Bronco L6-300 4.9L VIN Y 1-bbl (1983)
Differential Case: Adjustments
1.
Attach ring gear to the differential case using new bolts. Torque bolts alternately and evenly to 50---60 ft. lbs. on except model 60 monobeam axle
or 100-120 ft. lbs on model 60 monobeam axle.
2.
Clean trunnions on the differential and install the master differential bearings on to differential case. Remove all burrs and nicks from hubs so
master bearings rotate freely.
3.
Place differential case into carrier (without pinion). The differential case should move freely in the carrier assembly. Position a suitable dial
indicator against differential case flanges. Locate tip of the indicator on the flat surface of one ring gear bolt. Force the differential case toward the
dial indicator as far as possible and zero dial indicator with force still applied. Dial indicator should have a minimum of .200 inch travel. Force
differential case away from the dial indicator as far as it will go. Repeat this procedure until the same reading is obtained. Record dial indicator
reading. This reading indicates the amount of shims needed behind the differential side bearings to take up total clearance between the differential
bearing and case. This reading will be used during pinion and ring gear backlash adjustment.
4.
Remove differential case from the carrier. Do not remove the master differential bearings at this time.
