2003 Chevy Trailblazer short wheelbase 4.2L. Perfect fit, the last Gates Micro- V has done 120,000 miles The short wheelbase uses this 91.5" long belt. This is a legitimate product - I paid a $90 rebate for this very belt many years ago before Revain had anything like it. Gates has not changed this product since I compared the old belt and packaging to this one and they are identical. A truly premium, extremely durable belt. Replacement only requires a 3/8" wrench and 5 minutes. Always keep the old belt as a spare. $28 for a belt proven to withstand heavy use well in excess of 100,000 miles.