Silverado 1500 2WD V8-4.8L VIN V (2006)
Refer to the Model Application Chart shown to verify usage.
Supercede:
This bulletin is being revised to include 2007 model year and calibration information. Please discard Corporate Bulletin Number 03-03-10-006E
(Section 03 - Suspension).
Tires
GM has designed 20" wheels based on the Goodyear Eagle LS and LS2 P275/55R20 tire. The Goodyear Eagle LS tire has a Tire Performance Criteria
spec # 1235 and the LS2 has a Tire Performance Criteria spec # 1245. These tires have been designed to GM's specific Tire Performance Criteria. GM's
Tire Performance Criteria specifications meet or exceed all Federal safety guidelines.
When mounting the tires, rubber lubricant, P/N 12345884 (in Canada, P/N 5728223), MUST be used. The vehicle should not be driven aggressively
(hard acceleration or braking) for at least 6-8 hours after tire mounting to allow the lube to dry. Failure to do so may cause the tire to slip on the rim. This
condition will affect wheel balance which could result in a vibration.
Spare Tire
A P265/75R16 or P265/70R17 tire should be used as a spare. Re-use the vehicle's original spare wheel to mount the spare tire. The spare tire should be
used to drive the vehicle to a tire repair/replacement facility and is not intended for extended driving conditions.
Tire Changers
Dealers must have the correct level of tire changing equipment to perform tire changing services. GM requirements and recommendations for servicing
glamour wheels are as follows:
^
Rim Clamp design
^
Runflat capable (preferred)
^
Side mounted bead breaking to reduce stress on the wheel and tire
^
No metal contact to the wheel at the clamping jaws
Protective devices to prevent damage during mounting and dismounting operations Regulated air pressure to protect user and wheel assembly.
Approved lubricant (P/N 12345884 [in Canada, P/N 5728223]) to avoid wheel slip and damage to the wheel For further information regarding
equipment meeting the requirements for this program, call 1-800-GM-TOOLS.
Balancing
MC style coated weights are recommended and will provide the best balancing of the tire-wheel assembly. If stick-on weights are used, be sure to follow
the manufacturers recommended installation procedure (SI Document ID # 664222) making sure the surface is clean and dry. Using the incorrect type of
weights will result in improper fit, and such weights may fall off the wheel.
