Holley Classic Trucks 04-421 GMT400 Rocker Panel - LH Fits select: 1988-1998 CHEVROLET GMT-400, 1989-1998 GMC SIERRA

Compatible with 1988-1998 Chevrolet®/GMC® C/K GMT400 Series (OBS) Pickup. This product is not created or sold by Chevrolet®/GMC®.;

Are you fighting rust on the rockers of your classic OBS truck? Holley Classic Trucks has the solution with our rocker panels for the 1988-1998 GMT400 Series trucks. These new rockers have an excellent fit just like the OE, as well as better corrosion protection due to the EDP coating. They are manufactured with heavy gauge steel for superior strength and have the quality and fit that your project truck deserves.;