For 07-15 Cadillac Buick Chevrolet Saturn Pontiac 3.6L 3.0 DOHC Timing Chain KitDescription: 100% Brand New,never been use Engineered and Tested to Exceed Original Equipment Standards and Performance Professional Installation is Highly Recommended (No Instruction Included). Package includes: 1 Primary Timing Chain (lower 96 links silent type) 2 Secondary Timing Chains (upper 114 links) 1 Crank Sprocket (30 teeth non roller style) 2 Idler Sprocket (dual 22 teeth, 33 teeth left and right) 1 Primary Guide Rail (lower right fixed) 1