It has a 4.3 vortec engine
K kramnnim New Member Jan 8, 2008 #2 Try here- http://www.autozone.com/az/cds/en_us/0900823d/80/18/ab/44/0900823d8018ab44/repairInfoPages.htm
Try here- http://www.autozone.com/az/cds/en_us/0900823d/80/18/ab/44/0900823d8018ab44/repairInfoPages.htm