9.75" & 10.25" Differential
- Lubricate each steel clutch plate, and soak friction plates with additive friction modifier for 15 minutes. Assemble differential clutch packs without shims and Belleville springs on respective differential side gears.
- Install Traction Lock Torque Tool (T97T-4946-B) in a vise. Install differential clutch pack and side gears without shim or Belleville spring on gauge. Position Differential Clutch Gauge (T80P-4946-A) on top of differential clutch pack. Install clutch gauge over disc and differential pack. Install gauge nut over top and base stud.
- Using feeler gauge, select thickest blade that will enter between tool and differential pack. See Figure . Subtract .010" from reading to obtain thickness of new clutch shim. A maximum of 2 shims may be used. Select correct shim(s) size. See CLUTCH PACK SHIM SIZES . Remove Traction-Lok Clutch Gauge.
- Place shim and Belleville spring on differential clutch pack. Ensure dished or concave side of Belleville spring faces up and against thrust of differential case. Insert differential clutch packs with shims and Belleville springs and differential side gears into differential case. Hold upper differential clutch pack and side gear assembly in place to prevent falling out of case.
- Apply small amount of grease to step plate bore. If necessary, insert dowel bar in nut bore to keep nut turning as hex screw is tightened. Position step plate in bottom side gear bore. Position nut in top side gear bore, and hold it in place. Install hex-head screw, and tighten it 2 turns after it contacts bottom step plate.
- Lubricate both sides of differential pinion thrust washers with high performance rear axle lubricant. Ensure differential pinion gears are 180 degrees apart so they will align correctly with pinion shaft bore. Position differential pinion gears and differential pinion thrust washers in window of differential case, so they mesh with differential side gear teeth.
- Install Differential Rotator (T86T-4205-A) into pinion shaft bore, and turn differential case. Rotate differential case until pinion mating holes are lined up exactly with holes in differential pinion gears.
- Loosen forcing screw, and remove step plate and nut from side gear bores. Install pinion shaft and pinion shaft lock bolt finger-tight. Replace differential bearings, if removed. Install ring gear, and if removed, install ABS speed sensor ring on differential case. Install differential case.
CLUTCH PACK SHIM SIZES
| Part Number | Shim Thickness - In. (mm) | |
|---|---|---|
| 10.25" Diameter Ring Gear | ||
| F7TW-4A324-AA | .015 (.38) | |
| F7TW-4A324-BA | .020 (.51) | |
| F7TW-4A324-CA | .025 (.64) | |
| F7TW-4A324-DA | .030 (.76) | |
| F7TW-4A324-EA | .035 (.89) | |
| F7TW-4A324-FA | .040 (1.02) | |
| F7TW-4A324-GA | .045 (1.14) | |
| F7TW-4A324-HA | .050 (1.27) | |
| F7TW-4A324-JA | .055 (1.40) | |
| F7TW-4A324-KA | .060 (1.52) | |
| 9.75" Diameter Ring Gear | ||
| F7TW-4A324-AA | .015 (.38) | |
| F7TW-4A324-BA | .020 (.51) | |
| F7TW-4A324-CA | .025 (.64) | |
| F75Z-4A324-DA | .030 (.76) | |
| F75Z-4A324-EA | .035 (.89) | |
| F75Z-4A324-FA | .040 (1.02) | |
| F75Z-4A324-GA | .045 (1.14) | |
| F75Z-4A324-HA | .050 (1.27) | |
| F75Z-4A324-JA | .055 (1.40) | |
| F75Z-4A324-KA | .060 (1.52) | |
| 8.8" Diameter Ring Gear | ||
| EOAZ-4A324-G | .025 (.64) | |
| EOAZ-4A324-H | .030 (.76) | |
| EOAZ-4A324-C | .035 (.89) | |
| EOAZ-4A324-D | .040 (1.02) | |
| EOAZ-4A324-F | .045 (1.14) | |
| 7.5" Diameter Ring Gear | ||
| E4DZ-4A324-G | .025 (.64) | |
| E4DZ-4A324-H | .030 (.76) | |
| E4DZ-4A324-C | .035 (.89) | |
| E4DZ-4A324-D | .040 (1.02) | |
| E4DZ-4A324-F | .045 (1.14) | |