well i tell you what with this bitter cold snowy weather i just may try that,i only just began work on it,i have the top 13 mm bolt out of the akternator nothe bottom is giving me a hard time,i dont know why they put them half circle protective metal sleeved around the bolts,but i need to but a new 6 point socket and try it,then maybe i will get it on with out messing with that pain in the ass tensioner,oh i love general motors tensioners so much better,lol.thanks guys.marc