OK, class, here is the scoop! You can reuse the stock belt, IF you use the water pump pulley supplied with the kit, AND the supplied crank/dampener pulley. The Steeda alternator pulley looks to be the exact diameter as the Bullitt piece, so I used the stock Bullitt piece. You could just go with the smaller crank pulley, but would need a shorter belt. Now, I admit it was 73 degrees when I was cruising the highway on the test run, but I didn't see any difference in temperature. Don't know how accurate/sensitive the factory temperature gauge is though. I think the cooling/charging system on our cars is much improved over the old 5.0 Stangs. If you go with a lower, 3.55-3.73 gear,you will be spinning it up faster anyway. Oh and I got them from Steeda, on special for $159.00!!
<font size=-1>[ This Message was edited by: 1NastyFordGT on 2001-12-02 19:23 ]</font>