On my '84 pup I just went to the parts store and asked them to let me try different sized belts till I found one that fit. My pump wasnt bad but I wanted to eliminate it for daily driving. At 6k-12k ft above sea level the tiny bit of extra power I got from that helped some. I kept my old belt and hooked it up once a year for emissions inspection.

--Dave

1999 Rodeo LS 3.2 4x4 5 Speed
32x11.50-15 BFG T/A KO on US Wheel 94 series
3" Lift - Rancho 9000x
Rear No-Slip Locker
Flowmaster 50 series SUV 2.25"

There is a very fine line between "hobby" and "mental illness." - Dave Barry