GMC CHEVROLET Silverado 6500HD 2019 Owner's Manual page 377

376 Service and Maintenance
Right Side Rear of Vehicle
Warning
To prevent property damage,
personal injury, and/or death,
if wheels or tires must be
changed, obtain expert tire
service help. Mounting and
demounting of tires should only
be performed by qualified
personnel using necessary safety
procedures and equipment.
1. Spring Suspension: Check
condition of the spring for
cracks, breaks, or shifting.
Inspect the spring hanger
fasteners, shackles, U-bolts,
and nuts for wear, damage,
and tightness.
2. Brake Caliper and Hoses:
Check for cracked, worn,
or frayed hoses, and for secure
couplings. Check for broken,
loose, or missing parts.
3. Torque Rods and Shock
Absorbers: Check to see that
the torque rods are not
cracked, broken, or missing.
Check the shock absorbers for
cracks or leaks. There should
be no missing or broken
mounting bolts or worn
bushings.
4. Frame: Check for cracks or
bends in the frame. Make sure
there are no loose, cracked,
bent, broken, or missing
crossmembers or crossmember
fasteners.
5. Wheel and Lug Nuts: Check for
damaged or bent wheels.
Check to see that all the lug
nuts are present and not loose.
Look for rust trails around nuts.
Ensure that no cracks or
damage are present at the
wheel mount holes.
6. Brake Pads and Rotor: With
the brakes released, check to
see that the brake linings
(where visible) are not worn
excessively thin, less than
6 mm (0.25 in),
or contaminated by lubricant.
Where visible, check the disc
brake caliper wear indicator to
see that the brake pads/rotor
are not worn excessively.
7. Tires: Check the tread depth
and tire inflation. Note if the
tread is evenly worn. Minimum
tread depth is 3 mm (4/32 in)
on all tires. Look for cuts or
other damage to the tread
sidewalls. See if the valve caps
and stems are missing, broken,
or damaged. Check dual
spacing to ensure that the dual