front axle torque specs
SECTION 205-03: Front Drive Axle/Differential
1999 F-Super Duty 250-550 Workshop Manual
SPECIFICATIONS
Procedure revision date: 01/26/2000
General Specifications
ItemSpecificationLubricants and SealantsSAE 90 Premium Rear Axle Lubricant C2AZ-19580-FESW-M2C105-AHigh Temperature 4x4 Front Axle and Wheel Bearing Grease E8TZ-19590-AESA-M1C198-AClear Silicone Rubber D6AZ-19562-AAESB-M4G92-A or ESE-M4G195-A
Lubricant Fill Level Checks
ItemSpecificationAxle lubricant2.8 liters (5.9 pints)
Backlash Specifications
ItemSpecificationBacklash between ring gear and pinion0.13-0.20 mm (0.005-0.008 in)Maximum ring gear backlash variation0.05 mm (0.002 in)
Rotational Torque Ranges
ItemSpecificationPinion bearing preloada b c d 1.7-3.4 Nm
(15-30 lb-in)
a Never back off the pinion nut to reduce preload. If preload reduction is necessary, install a new collapsible spacer and pinion nut.
b Take frequent pinion bearing torque preload readings.
c For new pinion bearing installation, tighten the pinion nut to a rotating torque of 1.7-3.4 Nm (15-30 lb-in) (217-678 Nm [160-500 lb-ft]).
d For original pinion bearing installation, the reading must be 0.56 Nm (5 lb-in) more than the initial reading taken during the disassembly procedure.
Torque Specifications
DescriptionNmlb-ftPinion nuta b c d 217-678160-500Bolt retaining the front driveshaft to the front axle flange3526Nut retaining the u-bolt to the axle13399Nut and bolt retaining the trackbar to the axle174129Bolt retaining the stabilizer bar bracket to the axle4735Bolt retaining the differential bearing cap to the differential housing10980Bolt retaining the differential housing cover to the differential housing4735Bolt retaining the ring gear to the differential case
(model 50)136100Bolt retaining the ring gear to the differential case
(model 60)183135Fill plug2720a Never back off the pinion nut to reduce preload. If preload reduction is necessary, install a new collapsible spacer and pinion nut.
b Take frequent pinion bearing torque preload readings.
c For new pinion bearing installation on model 50 and 60 axles, tighten the pinion nut to a rotating torque of 1.7-3.4 Nm (15-30 lb-in) (217-678 Nm [160-500 lb-ft]).
d For original pinion bearing installation, the reading must be 0.56 Nm (5 lb-in) more than the initial reading taken during the disassembly procedure.