30-3. DIFFERENTIAL REPAIR (Contd)
Install differential housing spreader into holes in axle holding fixture adapters and install dial
indicator to read from each end of housing (1). Indicator must have preload setting of
0.020 in. (0.51 mm).
Overspreading of differential housing spreader will damage housing.
Spread housing (1) 0.010 in. (0.25 mm) and remove dial indicator.
Differential bearings must be preloaded to compensate for heat
and loads during operation.
Preload differential case side bearings (4) by increasing shim (2) thickness at each side of
differential case (5) by 0.004 in. (0.10 mm) for a total bearing preload of 0.008 in. (0.20 mm).
Lubricate side bearings (4) with lubricating oil and install differential case (5), two bearing cups (3),
shims (2), and bearing caps (6) in housing (1) with four capscrews (7).
Preloaded differential bearings may change backlash setting.
Check and correct backlash if necessary.
Remove housing spreader and tighten four capscrews (7) to 55-70 lb-ft (75-95 Nm).
Apply silicone sealant to cover (8) sealing surface and install cover (8) on housing (1) with twelve
capscrews (9). Tighten capscrews (9) to 16 lb-ft (22 Nm).
Remove housing (1) from holding fixture.
Remove four capscrews (10) and two axle holding fixture adapters from housing (1).