C 3500 Truck 2WD V8-454 7.4L VIN J SFI (1999)
This may prevent the door from closing properly. If the hinge pin bushings are worn, and this condition is not corrected, the hinge pin may wear through
the bushing and into the metal of the hinge.
Correction
Three situations have been identified with the appropriate correction listed below.
Situation 1 - The hinge bushings, the hinge pins, or the door stop check pin are worn or damaged.
1.
If necessary, replace the door stop check pin.
2.
If necessary, replace the hinge bushings and the stop pins.
3.
Add a door trim strap assembly.
4.
Install a severe service kit, P/N 15025840 with new Teflon(R) bushings and anti-chucking spacer.
5.
Lubricate the door hinge. Lubricate the door hinge at each oil change as part of ongoing preventative maintenance.
Situation 2 - The door hinges are damaged in the bushing area and new replacement hinges are needed.
1.
Refer to the appropriate Service Manual for instructions on replacing the hinges. Use the studs and conical nuts provided in the hinge kits.
2.
Install a severe service kit, P/N 15025840 with new Teflon(R) bushings and anti-chucking spacer.
3.
Add a door trim strap assembly.
4.
Lubricate the door hinge. Lubricate the door hinge at each oil change as part of ongoing preventative maintenance.
Situation 3 - Minor cracks in the sheet metal around the door hinge area, and the bushings are worn or damaged. New replacement hinges are needed.
1.
Refer to the appropriate Service Manual for instructions on replacing the hinges.
2.
Install backing plates in order to reinforce the service hinges. Use bolts and nuts to attach both plates and hinges. Order backing plates and attach
hardware separately. Refer to the parts information.
3.
Install a severe service kit, P/N 15025840 with new Teflon(R) bushings and anti-chucking spacer.
4.
Add a door trim strap assembly.
5.
Lubricate the door hinge. Lubricate the door hinge at each oil change as part of ongoing preventative maintenance.
History
There were production changes made to address these situations. The following lists the production changes and the time the change went into effect at
the assembly plants.
1.
Lubricant released for hinge bushings, March 1991.
2.
Molybdenum disulfide coating added to the hinge pin for improved lubrication, February 1992.
3.
Cab door frame reinforcement redesigned for 1.5 mm (0.06 in) to 2 mm (0.08 in) thickness and darts added, February 1992.
4.
Retaining groove added to the hinge pin, March 1992.
5.
Tapered check pin replaced the non-tapered check pin, October 1992.
6.
Non-serrated bronze bushings replaced stainless bushings, November 1992.
7.
Door hinge Z reinforcement added, April 1993.
8.
Teflon(R) bushings released for service only. Also included in kit P/N 15025840, July 1996. Both teflon and bronze bushings are now available
separately.
9.
Reinforcement plates removed from door hinge kits, February 1999.
10.
Hinge studs and conical nuts added, February 1999.
