Express 1500 AWD V8-5.3L (2008)
7. Install the caliper and caliper bracket assembly.
8. Perform the following procedure before installing the brake caliper bracket mounting bolts.
1. Remove all traces of the original adhesive patch.
2. Clean the threads of the bolt with brake parts cleaner or the equivalent and allow to dry.
3. Apply Threadlocker GM P/N 12345493 (Canadian P/N 10953488) to the threads of the bolt.
Notice: Refer to Fastener Notice .
9. Install the caliper bracket mounting bolts.
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Tighten the brake caliper bracket mounting bolts to 175 N.m (121 lb ft) (15 Series).
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Tighten the brake caliper bracket mounting bolts to 300 N.m (221 lb ft) (25 and 35 Series).
10. Install the front wheel hub extension (dual wheel vehicles only).
1. Insert a drift or large screwdriver through the brake caliper into one of the brake rotor vanes in order to prevent the rotor from turning.
2. Align and install the front wheel hub extension to the original position on the hub.
Important: Follow the same tightening sequence for the front wheel hub extension that is used on an eight lug wheel. Refer to Tire
and Wheel Removal and Installation .
3. Install the front wheel hub extension nuts.
