ADJUSTER KIT, Air Brake Slack Adjuster diagram Lt Truck GMC Sierra 2500HD Ext Cab - 53 Bodystyle (4WD)
PNC
Part code
Title
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1
89059146
ADJUSTER KIT,RR BRK SLACK(INCLS 5)(ACDelco #179-2102)(FOR USE ON VEHICLES THAT DO NOT USE BRK SHOE HOLD DOWN PINS, T/W 19133371)(FOR 2ND DESIGN USE 25976969)