hi i have to change my serpontine belt on my 97 zj and i was woindering if its hard and do i need one of those tensior tools

 

Not hard at all theres a bolt on top that is a 15 mm bolt then you loosen the bolt where the tensioner pulley is. Then you keep loosing the 15mm bolt to loosen the belt up. I cant think of exactly location of the 15mm bolt but hopefully someone will if not I can go out to my 97 zj later.