Reman Horton HT/S on/off fan hub and clutch assy, 7.5 diameter rear 8k serpentine pulley, 7.75 diameter front v-belt pulley, 6.70 overall length, 1.09 belt groove location, 3.5 bolt circle, 2 dia fan pilot, 1.5 long 3/8-16 fan studs, 2 high verti