GMC CHEVROLET Silverado 6500HD 2019 Owner's Manual page 372

Warning (Continued)
be performed by qualified
personnel using necessary safety
procedures and equipment.
Warning
To prevent property damage,
personal injury, and/or death, do
not operate the vehicle if there is
a loss of steering or suspension,
which could cause loss of vehicle
control.
Retread tires are not recommended
for use on steering axles of trucks.
1. Steering Gear: Look for
missing or loose fasteners,
power steering fluid leaks, and
damage to the power steering
hoses.
2. Brake Caliper and Hose:
Check to see that the brake
caliper is not cracked or
damaged and is securely
mounted. Check for broken,
loose, or missing parts. Check
for cracked, worn, or frayed
hoses and for secure
couplings.
3. Shock Absorber: Check for
cracks, leaks, and missing or
broken mounting bolts or
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. Spring Suspension: Check the
condition of the spring for
cracks, breaks, or shifting.
Inspect the spring hanger
fasteners, shackles, U-bolts,
and nuts for wear, damage,
and tightness.
6. Brake Pads and Rotor: With
the brakes released, check to
see that the brake linings
(where visible) are not worn
Service and Maintenance
excessively thin, less than
6 mm (0.25 in),
or contaminated by lubricant.
7. Wheel and Lug Nuts: Check for
damaged or bent wheel. Check
to see that all lug nuts are
present and not loose. Look for
rust trails around nuts. Ensure
that no cracks or damage are
present at wheel mount holes.
8. Tire: 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 or
sidewalls. Check for missing,
broken, or damaged valve cap
and stem.
9. Hub: Check for obvious leaks
on the outboard or inboard
sides of the wheel. Verify that
the oil level in the hub is
correct.
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