- Ensure pinion splines are free of burrs. If necessary, remove burrs using fine crocus cloth. Lubricate area between lips of oil seal with grease. Using Oil Seal Installer (T79P-4676-A
), install oil seal.
NOTE:
If oil seal becomes cocked during installation, replace oil seal.
- Lubricate pinion flange splines with oil. Install pinion flange on pinion with reference marks aligned.
CAUTION:
DO NOT
hammer pinion flange or use power tools to install pinion flange.
- Install NEW
pinion nut. DO NOT
reuse pinion nut. Hold pinion flange and gradually tighten pinion nut. Rotate pinion while tightening pinion nut to ensure proper seating of bearing.
- Using INCH lb. torque wrench, measure pinion bearing preload at different stages when tightening pinion nut. Tighten pinion nut until original pinion bearing preload is obtained.
- If original pinion bearing preload is less than 8-14 INCH lbs. (.9-1.6 N.m), tighten pinion nut to obtain correct pinion bearing preload. If original pinion bearing preload is greater than specification, tighten pinion nut to obtain original bearing preload reading.
CAUTION:
DO NOT
back off pinion nut to reduce pinion rotating torque. If reduced pinion bearing preload is required, install a NEW
collapsible spacer, and retighten pinion nut to obtain correct bearing preload.
- To install remaining components, reverse removal procedure. Apply Loctite to drive shaft flange bolt threads before installing. Ensure reference mark on drive shaft flanges are aligned. Tighten all bolts/nuts to specification. See TORQUE SPECIFICATIONS
. Fill axle with lubricant. Install and tighten filler plug.