1995 GMC C3500 6.5L, 18:1 pistons, HD splayed main bearing caps, Phaser gear set, Fluid Damper harmonic, Super 54 turbo, air to liquid Intercooler, water/methanol injection system, twin oil coolers, Mishimoto radiator, upgraded fan, dual thermostat, 40 row fan cooled trans cooler, 8 position tuner, Testing 3.42:1 differential. Driven truck to Alaska, own land in Alaska, two of my son's live in Alaska.
2 pulleys I have here 56mm OD don't have the right spacer, them are 9mm, and the right distance is 6.5mm
it is essential to have the right distance, in order not to wear out the belt