The bolts that hold the vacuum pump on the bracket will not come all the way out with the pulley in place. They will thread all the way out, but you cannot get them in or out with the pulley in place.. So when you put the new pulley on the pump, make sure the bolts are in the holes on the pump. I think that one of the bolts can come out with the pulley on, but I always put all of them in the pump before putting the pulley back on.
Travis- Death Row Diesel Inmate #7
1995 F-250 RC 2wd PSD ZF5- because race truck
2000 F-250 SC LB 4x4 ZF6- 4" TB, 6637, TW and Gearhead tunes, 160/100s, Driven Diesel full fuel system, S365..
1994 F-150 4x4