Wheel Hub/Rotor Assembly - GMC 1986 P-Truck Service Manual

$ Tighten
• Nut (212) to 88 N m (65 ft. lbs.).
• Nut (212) to 120 N m (89 ft. lbs.) on quad
shocks (RPO Z75).
2. Shock absorber (220) to the frame.
• Bolt (219), washer (213) and nut (212).
Tighten
$
• Nut (212) to 88 N m (65 ft. lbs.).
3. Lower the vehicle to the floor.
STABILIZER BAR
4 - +
Remove or Disconnect (Figures 37, 38 and 40)
• Raise the vehicle on a hoist.
1. Stabilizer bar (230) from the frame brackets (237).
• Nuts (231), washers (232), brackets (233),
and bolts (238) (figure 37).
2. Stabilizer bar (230) from the spring plate (224).
• Bolts (229), and washers (228).
• Stabilizer bar is free of the vehicle.
• Bushings (234) can be removed from the
stabilizer bar.
Install or Connect (Figures 37, 38 and 40)
□
1. Stabilizer bar (230) to the frame brackets (237).
• Bushings (234) onto the stabilizer bar.
• Use rubber lubricant when installing the
b u sh in g s (s lit faces forw a rd ) on the
stabilizer bar.
• Brackets (233), bolts (238), washers (232),
and nuts (231) (figure 37). Do not tighten.
NOTICE: Refer to "Notice" on page 3C#1 of
this section.
2. Stabilizer bar (230) to the spring plate (224).
• Washers (228) and bolts (229) (figure 40).
$
Tighten
• Nuts (231) to 70 N m (52 ft. lbs.).
• Bolts (229) to 180 N m (133 ft. lbs.).
3. Lower the vehicle to the ground.

WHEEL HUB/ROTOR ASSEMBLY

Remove or Disconnect (Figures 37, 38, and 41
through 43)
Tools Required:
J-6893-D W heel Bearing Nut W rench
(10/1500-20/2500 Series)
FRONT SUSPENSION 3C-41
J-23446 Torque Wrench Adapter
J-26878-A Wheel Bearing Nut Wrench
(30/3500 Series)
• Raise the vehicle and support it with suitable
safety stands. Remove the tire and wheel
assembly.
1. Caliper
• Refer to BRAKES (SEC. 5).
2. Locking hub (249).
• Refer to FRONT AXLE (SEC. 4C).
3. Locking nut (250), ring (251) and adjusting nut
(252).
• Use J-6 8 93 -D
10/1500-20/2500 series vehicles.
• Use J-26878-A for 30/3500 series vehicles.
4. Hub/Rotor Assembly (257).
• Outer wheel bearing (253) will slide off the
spindle (265) ahed of the hub/rotor (257).
• Use a brass drift and hammer for the seal
(260) and races (254, 258).
• The inner bearing (259), race (258) are
behind the seal (260).
L*
Inspect
1. Rotor braking surfaces for scoring, pitting, or
cracks.
• Repair or replace as necessary.
2. Wheel bearings (253, 259) and races (254, 258).
• Refer to " Diagnosis of Wheel Bearings," in
this section.
• If either a bearing or its race is damaged or
worn, replace both.
Install or Connect (Figures 37, 38, and 41
through 43)
Tools Required:
J-8092 Driver Handle
J-6368 Bearing Race Installer (Outer)
J-23448 Bearing Race Installer (Inner)
J-6893-D W heel B earing Nut W rench
(10/1500-20/2500 series vehicles)
J-26878-A Wheel Bearing Nut Wrench
(30/3500 series vehicles)
J-23446 Torque Wrench Adapter
1. Races (254, 258) into the rotor/hub (257).
• Use J-8092 and J-6368 for installation of the
outer bearing outer race (254).
• Use J-8092 and J-23448 for installation of
the inner bearing outer race (258).
• Do not damage the hub/rotor during the
race installations.
Clean
Grease from the rotor/hub (257) and spindle
(265).
and J-2 3 44 6 for