Replaced an old squeaky belt with an Adv. auto parts. The squeak came back after 1 week (I assume the van has a misaligned water pump pulley). I replaced the W strap with a Gatorback - the squeak was gone and after 3 months it's still silent. Happy. By the way, Adv. Autoparts can provide you with a belt replacement tool kit for free ($36 deposit, no purchase required). This greatly simplifies access to that pesky stretcher. Update: two years and 20,000 later. Still quiet like new. Come on Gatorback!