Ford Traction-LOK Differential

Fig. 7 Removing S-shaped preload spring:

Fig. 8 Pinion gear removal & installation:

Fig. 9 Ford Traction-Lok locking differential exploded view:

Disassembly
1. Remove pinion shaft lock screw and pinion shaft.
2. Push axle shafts inward and remove C-clips from axle shafts. Remove axle shafts.
3. Remove preloaded ``S'' shaped spring, Fig. 7. Use caution when removing ``S'' shaped spring since it is under tension.
4. Rotate pinion gears and thrust washers until they can be removed through access hole using 12 inch socket extension inserted into pinion gear rotator T80P-4205-A or equivalent, Fig. 8.
5. Remove left and right side gears, clutch packs and shims, Fig. 9. Note order of removal for reference during assembly.

Fig. 7 Installing Tool T80P-4946- Or Equivalent To Measure Shim Thickness:

Fig. 11 Measuring shim thickness:

Inspection
1. Visually inspect clutch packs, side gears, pinion gears and pinion shaft for damage or wear and replace as necessary.
2. Place each clutch pack without shims into tool T80P-4946-A or equivalent, Fig. 10. Torque nut to 40 inch lbs. Using feeler gauge, determine thickness of new shims by inserting thickest blade possible between clutch pack and tool, Fig. 11.

Fig. 8 Pinion gear removal & installation:

Assembly
1. Apply suitable lubricant to clutch plates, then install left side gear, clutch pack and new shim into differential case. Repeat procedure for right hand side.
2. Install pinion gears and thrust washers 180° apart and in contact with side gears.
3. Align gears with pinion shaft bore, Fig. 8, using 12 inch socket extension inserted in pinion shaft rotator.
4. Install ``S'' shaped preload spring into differential using soft faced hammer.
5. Install axle shafts and secure with C-clip clip.
6. Install pinion shaft. Apply Loctite or equivalent onto pinion shaft lock bolt and torque to specifications.