Addressing the title of this thread, a single v-belt will not support the power required by a 130amp 3G alternator at full output. You can expect a belt squeal at at start-up using a single v-belt. Hopefully you can get a dual v-belt setup going.
Mine has never squealed at any point even with all lights and heater on high. I am still using v belts as well. No shim, no grinding. Just bolted on and modified the wiring. I have 3 trucks with this mod. 88, 89, and a 91.Addressing the title of this thread, a single v-belt will not support the power required by a 130amp 3G alternator at full output. You can expect a belt squeal at at start-up using a single v-belt. Hopefully you can get a dual v-belt setup going.
I have had the same experience with my 89. Only belt squeal has been from mashing through a large puddle.Mine has never squealed at any point even with all lights and heater on high. I am still using v belts as well. No shim, no grinding. Just bolted on and modified the wiring. I have 3 trucks with this mod. 88, 89, and a 91.