When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Your son's 91 Corvette has a spring loaded belt tensioner on the right side of the engine and no adjustment is necessary. There is a 1/2 " square hole in the tensioner arm that you put a 1/2 " breaker bar in to unload the belt tension to remove the belt, and you do the same to install the new belt .