Grand Cherokee 4WD V8-4.7L (2003)
A hub mounted on-vehicle lathe is required. This type of lathe trues the disc to the vehicles hub/bearing. Refer to the SPECIAL
TOOLS/EQUIPMENT REQUIRED table for a list of approved lathes.
17.
Reface the front brake disc(s) with a DaimlerChrysler approved on-car brake lathe. If an on-car lathe is not available at the dealership, the disc
refacing must be sublet to a facility with an approved on car lathe.
18.
Install new front brake pads, p/n 05093183AB.
19.
Caliper slide pins should be free from debris and lightly lubricated with brake grease, p/n J8993704.
20.
Install the caliper on the adapter.
CAUTION:
Verify brake hose is not twisted or kinked.
21.
Install the caliper slide pin bolts and torque to 72 Nm (53 ft. lbs.).
22.
Gently lift one end of the slide pin boot to equalize air pressure, then release the boot and verify that the boot is fully covering the slide pin.
23.
Repeat Step #16 to Step #22 on the opposite side of the vehicle as necessary. When front disc(s) have been refaced/replaced, proceed to Step # 35.
24.
Remove and discard the old brake disc(s).
25.
Thoroughly clean the surface of the wheel hub/bearing assembly where it mates to the brake disc. The hub surface must be free of corrosion and
dirt so that the new brake disc rests flush against the hub. This important step will prevent excess disc lateral runout.
26.
Inspect the new brake disc and its mating surface with the hub/bearing assembly. Install the new brake disc, p/n 52098672, to the hub/bearing
assembly. Install the lug nuts on the wheel studs and torque to 34 Nm (25 ft. lbs.) to keep the disc true and tight to the hub/bearing.
NOTE:
Use a dial indicator to insure that minimum lateral runout is achieved for each disc.
27.
Using a dial indicator determine the brake disc lateral runout. If the runout exceeds 0.025 mm (0.001 in.), match mount the brake disc to the
hub/bearing assembly until the minimum lateral runout for the new brake disc and hub/bearing assembly combination is obtained.
28.
Verify that the maximum allowable lateral runout of the brake disc and hub/bearing assembly combination does not exceed 0.025 mm (0.001 in.).
If the lateral runout is in excess of specification, then the cause must be determined and corrected before proceeding further with this repair.
29.
Install new front brake pads, p/n 05093183AB.
30.
Caliper slide pins should be free from debris and lightly lubricated with brake grease, p/n J8993704
31.
Install the caliper on the adapter.
CAUTION:
Verify brake hose is not twisted or kinked.
32.
Install the caliper slide pin bolts and torque to 72 Nm (53 ft. lbs.).
33.
Gently lift one end of the slide pin boot to equalize air pressure, then release the boot and verify that the boot is fully covering the slide pin.
34.
Repeat Step #24 to Step #33 on the opposite side of the vehicle as necessary. When both front discs have been refaced/replaced, proceed to Step #
40.
35.
Was the propeller shaft removed from the vehicle earlier?
a.
Yes >> go to Step # 36
b.
No >> go to Step # 40.
36.
Position front propeller shaft under vehicle with rear universal joint over the transfer case yoke.
37.
Align the front of the propeller shaft to the axle pinion yoke using the reference marks made previously.
38.
Align the rear of the propeller shaft to the transfer case yoke using the reference marks made previously.
