This is a New Aftermarket LEFT / DRIVER'S SIDE Exhaust Manifold for the 1998 - 2000 Chevy GMC 350 5.7L engineFITS THE FOLLOWING MAKES / MODELS:CHEVROLET/GMC 1500 PICKUP 98-99 350 (5.7L)CHEVROLET/GMC 2500 PICKUP 98-99 350 (5.7L)CHEVROLET/GMC 3500 PICKUP 98-99 350 (5.7L)ESCALADE 99-00 (5.7L)SUBURBAN 1500 /2500 98-99 350 (5.7L)TAHOE 98-00 350 (5.7L)YUKON 98-00 350 (5.7L)