Nathan - mine isn't seized but something sure isn't right. According to STM, you should have it as tight as possible without squealing or creeping…. take a look at the video and let me know if this looks right or not? BTW I only have 2 fiber washers in it….Dude that is exactly what mine did when the one way seized up. I may be wrong but I'd say add at least one shim if not two. That's just my opinion tho. I've got two more shims in mine than what I had with the original belt and it seems good to me, I'll know tomorrow when I can take it for a spin.