CAMPAIGN:TIE ROD TOUCHES TIRE REPLACE TIRES AND WHEELS
MODELS: 1985 AND 1986 P35 MODEL LIGHT DUTY TURCK EQUIPPED WITH I-BEAM FRONT AXLES (RPO FS3) AND 16" WHEELS & TIRES
DEFECT INVOLVED:
General Motors of Canada has determined that a defect which relates to Motor Vehicle Safety exists on some 1985 and 1986 P30/35 Light Duty Trucks equipped with an 1-beam front axle and 16" wheels and tires.
During a combined cornering and braking maneuver, the tie rod end could contact the tire inner wall. This contact can cause grooving of the tire and if it went unnoticed, it could eventually result in a tire failure and possible loss of vehicle control.
To prevent the possibility of this occurring on the vehicles involved, the standard 16" wheels and tires (7.50-16 or LT215/85Rl6) will be replaced with 19.5" wheels and tires (8.00-19.5 LT). This increases the clearance and eliminates contact between the tire an.d tie rod end.
VEHICLES INVOLVED:
Involved are certain 1985 and 1986 P30/35 model Light Duty Trucks equipped with I-beam front axles (RPO FS3) and 16" wheels and tires manufactured within the following VIN breakpoints:
GMC --- Model Plant Year From Through ----- ---- ---- ------- Detroit 1985 F3504938 F3510442 Detroit 1986 G3501417 G3501418
CHEV --- Model Plant Year From Through ----- ---- ---- ------- Detroit 1985 F3328120 F334e336
All affected vehicles have been identified by the VIN listing provided to involved Dealers with this bulletin. Any Dealer not receiving a listing was not shipped any of the affected vehicles.
DEALER CAMPAIGN RESPONSIBILITY:
Dealers are to service all vehicles subject to this campaign at no charge to owners, regardless of mileage, age of vehicle, or ownership, from this time forward.
For used vehicle inventory, or it is in your Dealership for service in the future, you should take the steps necessary to be sure the campaign correction has been made before reselling or releasing the vehicle.
Owners of vehicles recently sold from your new vehicle inventory are to be contacted by the Dealer, and arrangements made to make the required modification according to instructions contained in this bulletin.
CAMPAIGN PROCEDURE:
Refer to Section 4 of the Service Policies and Procedures Manual for the detailed procedure on handling Product Campaigns. Dealers are requested to complete the campaign on all transfers as soon as possible.
OWNER NOTIFICATION:
All owners of record at the time of campaign release .are shown on the attached computer listing and have been notified by first class mail from General Motors. The listings provided are for campaign activity only and should not be used for any other purpose.
PARTS INFORMATION:
Wheels and speedometer parts are to be obtained through regular channels as follows:
Part # Description Quantity Req/Vehicle ------ ----------- --------------------- 14005766 19.5" x 6" wheel 6 - (7 if equipped w/spare)
6264904 Driven Gear "O" Ring 1
273487 Valve Stem A/R
3866919 Speedo-Driven Gear 1 - Equipped with manual transmission (M20) and 4.10 axle ratio (GT5). 14020836 Speedo-Adapter Asm. 1 - Required only with manual transmission (M20) and 4.10 axle ratio (GT5).
3866799 Speedo-Driven Gear 1 - Equipped with manual transmission (M20) and 4.56 axle ratio (HC4).
1359272 Speedo-Driven Gear 1 - Equipped with automatic transmission (M40) and 4.10 axle ratio (GT5).
1362049 Speedo-Driven Gear 1 - Equipped with automatic transmission (M40) and 4.56 axle ratio (HC4).
1359273 Speedo-Driven Gear 1 - Equipped with automatic transmission (m4O) and 5.12 axle ratio (HC7)
1362294 Sleeve/ Sensor and 1 - Required only with automatic Attached Parts transmission (M40) and either 4.10 or 5.12 axle ratio (GT5 or HC7).
PARTS-AND LABOUR CLAIM INFORMATION:
Credit for the campaign work performed will be paid upon receipt of a properly completed campaign claim card or RAPID terminal transmission in accordance with the following:
Repair Code Operation Time Allowance ----------- --------- -------------- 2A Replace 6 wheels and 4.4 speedometer driven gear
3A Same as 2A but if equipped 5.0 with spare tire (7 wheels)
Time allowance includes 0.1 hour for Dealer administrative detail associated with this campaign, as well as for painting/paint "mixture", tire mounting, balancing and R and R of wheel assembly from vehicle.
As the Campaign system is not set up to handle such large amounts, please send claims to Oshawa for processing.
Parts credit should be dealer net plus 30% of either 6 or 7 of part number 14005766 (wheels). Please include in your claim an additional miscellaneous material allowance of $29.00 when replacing six wheels and $36.00 when replacing seven wheels.
Cost of additional parts such as required Speedo-Driven Gear should be processed as an Add Credit. The Add Credit should also include cost of teleph6ne call to the Tire Company.
REMOVED WHEELS AND TIRES
Wheels and tires removed from a campaigned vehicle inust be scrapped by cutting the wheels with a torch and by drilling holes through the tire's serial number - the wheels and tires must not be reused.
ALTERATION LABEL INSTALLATION
Dealers will receive a supply of vehicle alteration labels with their campaign information package, Fig. #1. The Dealer must type in the spaces provided on the label the date of alteration (date repair performed) and the VIN of the vehicle altered (campaigned). This label then must be installed next to the body builder's completed vehicle certification label located over the driver's window and to the left of the sun visor. The clear adhesive overlay supplied must be installed for label protection.
SERVICE PROCEDURE
Replace the 16" wheels and tires with 19.5" wheels and tires following the procedures as outlined in the Light Duty Truck Service Manual, X-8532 and X-8632 Section 3E-1.
It will also be necessary to replace the speedometer driven gear to adjust for the larger rolling radius of the 19.5" tires with the proper gear, determined by the type of transmission and rear axle ratio.
To replace speedometer gear for vehicles equipped with automatic transmissions (RPO M40):
1. Disconnect speedometer cable from transmission.
2. Remove retainer bolt, retainer, speedometer driven gear and "O" ring seal.
3. To install, reverse removal procedure, using new "O" ring seal (if fluid level.
To replace speedometer gear for vehicles equipped with 4 speed manual transmissions (RPO M20):
Removal
1. Raise vehicle.
2. Disconnect speedometer cable from the transmission, then remove lock plate. Insert screwdriver in lock place slot in fitting and pry fitting, gear and shaft from housing. Pry "O" ring from groove in fitting.
Installation
1. Install new "O" ring in groove in fitting, coat "O" ring and driven gear shaft with transmission lubricant and insert shaft.
2. Hold the assembly so slot in fitting is toward lock plate boss on housing and install in housing. Push fitting into housing until lock plate can be inserted in groove and attached to housing.
3. Install speedometer cable and lower vehicle.
TIRE REPLACEMENT PROCEDURE
A special procedure has been established with Goodyear Tire and Rubber Co., in ordering the following tire in quantities necessary to complete the campaign: Goodyear-8.00-19.5LT-Load Range "D"-Highway Tread-Bias Ply Blackwall.
Dealers will order the replacement tires on a "no charge" basis from:
Dick Swartz/Penny Meyers Goodyear Tire and Rubber Co. Phone: (216) 796-6724
Requests for tires must be made with the following information:
1. Vehicle Identification Number. 2. Vehicle owner name and address. 3. Dealer name, address and code number.
The replacement tires will be shipped ground freight prepaid to the dealership; however, any further forwarding is not reimbursable.
INSTALLATION OF CAMPAIGN IDENTIFICATION LABEL
Clean surface of radiator upper mounting panel and apply a Campaign Identification Label. Make sure the correct campaign number is inserted on the label. This will indicate that the campaign has been completed.
General Motors bulletins are intended for use by professional technicians, not a "do-it-yourselfer". They are written to inform those technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions and know-how to do a job properly and safely. If a condition is described, do not assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See a General Motors dealer servicing your brand of General Motors vehicle for information on whether your vehicle may benefit from the information.
