COMP Cams Pushrod Set XD-A GM LS 7.740-7.972in w/o ShimsA game changing method for accurately setting lash or pre load while using non adjustable style rockers. The patent pending system incorporates a smaller top section that slides two inches deep inside a larger bottom section. Length can then be adjusted in . 004" increments with available shim kit. Catalog User 1 This Part Fits: Year Make Model Submodel 2001 2004 Avanti II Base 2008 2009 Buick LaCrosse Super 2004 2007 Buick Rainier CXL 2004 2005 Buick