[dr_of_lovephd]

The tensor pulley should not need to be replaced. In my 89 chevy, it took until 2003 for the pulley to go out.

What I do to change the belt is to put a wrench on the bolt in the front of the pulley and use it as leverage to pull the tensor pulley up and release the tension. It is tough to hold the pulley up with one hand and put the belt on with the other, so I align the belt with all of the other pulleys first and then slide it under the tensor pulley last.

I do not know if that is the best way, but it worked for me everytime.