Express 4500 V8-6.0L (2010)
4. Remove the brake caliper upper guide pin (1).
Note: The lower brake caliper guide pin is equipped with a bushing.
5. Remove the lower brake caliper guide pin (2).
6. Inspect the rear disc brake hardware. Refer to Rear Disc Brake Mounting and Hardware Inspection (With Single Rear Wheel) (See: Disc Brake
System/Testing and Inspection/Rear Disc Brake Mounting and Hardware Inspection (With Single Rear Wheel))Rear Disc Brake Mounting and
Hardware Inspection (With Dual Rear Wheel) (See: Disc Brake System/Testing and Inspection/Rear Disc Brake Mounting and Hardware
Inspection (With Dual Rear Wheel)).
Installation Procedure
1. Apply a light coat of high temperature silicone brake lubricant to the brake caliper guide pin surfaces:
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Apply lubricant to the brake caliper guide pin shafts.
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Apply lubricant to the brake caliper guide pin seats.
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Apply lubricant to the brake caliper guide pin threads.