Pinion Depth
- Assemble Axle Pinion Depth Gauge Set (T79P-4020-A
) and install aligning adapter, gauge disc, gauge block screw and gauge block.
- Place rear pinion bearing over aligning disc and into bearing race of axle housing. Install front pinion bearing into front bearing race. Place tool handle onto screw and finger tighten. See Fig 1
.
Courtesy of FORD MOTOR CO.
- Ensure pinion depth measuring tools are properly installed and tightened. Apply a light film of oil to pinion bearings. Rotate gauge block several times to seat bearings.
- Tighten tool handle to 20 ft. lbs. (27 N.m). Final position of gauge block should be 45 degrees above axle shaft centerline. Clean differential bearing bores thoroughly and install gauge tube.
- Tighten the bearing cap bolts to proper specification. See TORQUE SPECIFICATIONS
table. Using flat pinion shims as a gauge for shim selection, hold gauge block in proper position and measure clearance between gauge block and tube.
- Correct shim selection is accomplished when a slight drag is felt as shim is drawn between gauge block and tube.