DIFFERENTIAL-ELSD
OPERATION
A gerotor pump (1) creates oil flow through the filter (4) whenever left and right wheels spin at different speeds and the solenoid valve is activated. The oil flow is restricted by a Pressure Regulating Valve (PRV) to build oil pressure. Pressurized oil is then fed to a piston (2) chamber. The piston compresses the clutch pack (3) providing additional torque to the lower speed wheel.
When the antilock brakes are activated the differential solenoid is switched off and pressure is bleed off the clutch pack.
REMOVAL
1. Remove half shafts and axle shaft.
2. Remove differential cover.
3. Remove three axle tube (1) mounting bolts (2) from differential housing (3).
4. Tap axle tube (1) and pull tube off differential housing (3) flange.
5. Bolt spreader Adapters 9669 to differential housing (3).
6. Install Spreader W-129-B on adapters.
7. Spread case 0.3 mm (0.011 in.).
NOTE: Maximum case spread is 0.5 mm (0.02 in.).
8. Remove differential housing seal with seal pick.
9. Remove differential housing (1) snap ring (2).
10. With a micrometer (1) measure snap ring (2) and mark the size and location of the snap-ring.
11. Remove solenoid valve connector (1) from ELSD solenoid valve (2).
12. Remove differential bearing cap bolts (1) and cap (2).
13. Remove axle tube side differential housing (1) snap ring (2).
14. Measure (1) snap ring (2) and mark ring for location.
15. Slid differential assembly (1) to the right and tilt ELSD pump (2) and differential out of the housing.
INSTALLATION
1. Slide differential assembly (1) into the right side of the housing. Then slide ELSD pump (2) and differential into housing.
2. Bolt spreader Adapters 9669 to the differential housing.
3. Install Spreader W-129-B on adapters and spread case 3mm (0.011in.).
4. Install differential bearing cups into their original locations.
5. Install axle tube side differential housing (1) snap ring (2).
6. Install snap ring (1) into differential housing (2).
7. Install differential housing seal with Installer 9505 and Handle C-4171.
8. Install differential bearing cap (2) between ELSD anti rotation tabs. Install bearing cap bolts (1) finger tight. Remove spreader then tighten bearing cap bolts to 135 N·m (100 ft. lbs.).
9. Install solenoid valve connector (1) to ELSD solenoid valve (2).
10. Lube new o-ring and install on axle tube (1).
11. Align axle tube (1) with differential housing flange (2) and push tube into place.
CAUTION: The tube must be perfectly aligned to the housing to prevent damage to the o-ring. Failure to follow these instructions will result in a leak.
12. Install three axle tube (1) mounting bolts (2) and tighten to 56 N·m (41 ft. lbs.).
13. Apply a 6.35mm (1/4 in.) bead of Mopar® Gear Sealant RTV Silicone Rubber Adhesive MS-GF44D or equivalent to the differential case.
CAUTION: If housing cover is not installed within 3 to 5 minutes, the differential case must be cleaned and new RTV applied. Failure to follow these instructions will result in a leak.
14. Install cover and tighten cover bolts in a criss-cross pattern to 56 N·m (41 ft. lbs.).