This damper fits a wide range of late model veheicles that use a cast iron engine based off of the LS1 design. The specific engine that it fits is the LM7 engine option which is a 5.3L V8. This engine is available in 2001 and later Tahoe, Yukon, Yukon XL, Escalade, ESV, EXT, Avalanche, Sierra and Silverado. This engine is also sold as a crate engine by GM and is used in engine swaps. If you racing one of these engines, consider our #90035 Powerforce+Plus Race Damper which meets SFI specification #18-1. Or if you are using the engine in a high performance street application and require a more heavy duty damper than the stock unit, then our #80034 is the damper you need.