Wheel And Tire Balancing; Spare Tire Carriers - GMC G Service Manual

3E-10 WHEELS AND TIRES
6. Attach balance weights and install the wheel and tire
assembly on the vehicle.
• Mount the weights in the marked positions and
remove the masking from the tire.

WHEEL AND TIRE BALANCING

To ensure successful, accurate balancing, the following
precautions must be observed:
• The wheel and tire must be clean and free of all for­
eign matter.
• The tire should be in good condition and properly
mounted using the balance mark on the tire, if any, or
lined up with the inflation valve.
• Bent wheels that have a runout over 1.6mm
(1/16-inch) should be replaced.
• Inspect the wheel and tire assembly to determine if an
out-of-round condition exists.
] Important
• A severe out-of-round condition cannot be "balanced
out." A wheel and tire assembly having an out-of­
round condition exceeding 4.7mm (3/16-inch) is not
suitable for the front of the vehicle. Its use on the rear
of the vehicle must be governed by its general condi­
tion and whether the roundness problem seriously
detracts from overall ride quality.
• Follow the wheel balancer machine instructions while
performing the balancing operation.

SPARE TIRE CARRIERS

Removal of the spare tire carrier is accomplished by
removing the various fasteners shown in the appropriate
figure. Replacement is the reverse of the removal
procedure.
UNDERBODY SWING OUT SPARE TIRE CARRIER
(RPO P10)
The underbody swing out spare tire carrier is standard
equipment on R/V 10/1500 series pickups. It is available as
an option (RPO P10) on R/V 20/2500 and 30/3500 series
pickups (figure 9).
UNDERBODY GLIDE OUT SPARE TIRE CARRIER
(RPO P11)
The underbody glide out spare tire carrier is available as
an option (RPO P11) on all R/V series pickups (figure 10).
SIDE PANEL MOUNTED SPARE TIRE CARRIER
(RPO P13)
The side panel mounted spare tire carrier is available as
an option on all R/V series pickups (figure 11).
SUBURBAN AND UTILITY VEHICLE SPARE TIRE
CARRIERS
The spare tire carrier for Suburban models is shown in
Figure 15. The carrier for Utility vehicles is shown in Figure
17.
P-MODEL SPARE TIRE MOUNTING
Mounting of the spare tire for the P-Models is shown in
Figure 12.
G-VAN SPARE TIRE CARRIER/MOUNTING
Mounting of the spare tire for the G-Van Cutaway and
Cube Van models is shown in Figure 13. For the G-Van
with 1-ton rating and the RPO AQ4 rear seat, the spare tire
carrier is shown in Figure 14. For all others (those except
the Cutaway model, or those without RPO AQ4 rear seat),
spare tire carriers are shown in Figure 16.
Figure 9 — Underbody Swing Out Spare Tire Carrier
(RPO P10)