This video goes over the repair / replacement procedure for the rear drum brake wheel cylinder on a old body style (OBS) GM truck. The vehicle shown is a 1999 Chevrolet 2500 class 3/4 ton truck with 13″ rear drum brakes, but the the approach would be similar for all GM truck models of the mid to late 1990s (1994 1995 1996 1997 1998 99) across Chevrolet, GMC, and Holden. So Cheyenne, Suburban, Silverado, Sierra in the C/K 2500 and 3500 range would likely have this style of rear drum brakes. The wheel cylinder is the same part for either side of the truck.
ACDelco part number: 172-1215 for this wheel cylinder on affiliate link at eBay: https://ebay.us/FmhsSa or Amazon: https://amzn.to/36GxSeK
GM part number: 19213345 for this wheel cylinder on affiliate link at eBay: https://ebay.us/gduTl8
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0:00 – Repair overview
1:41 – Disassembly
8:38 – Replacement part numbers
9:58 – Installation tips
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