First I do not want to take credit for this...... I got this from (niks4082fst4u) on Corral.. I am just posting the pic so everyone can see how it is routed. Oh and the belt size I used (after 3 trips to NAPA is a 060703) which is 70-3/4".....
What I did was remove both alternator bolts and loosened the two PS nuts (but did not remove) and then route the belt, install the two alternator bolts (Do not tighten yet), now go tighten the PS nuts. and then go back and pullback on the alternator a little and tighten up...THATS IT!!!!!Your done!!