Drive belt question (86' C30 454, hydroboost w/ac)

[JellyBeanDriver]

Originally Posted by donut

You may have only 2 v-grooves. 3rd groove ran 1 of the smog pumps (had 2)
2nd pump may have been a nod to the emissions gods. My truck had factory duals, no cats, and legally could run regular gas.

Worked on the truck today. Power steering pump does have 3 grooves like your photo.

I think our 86' is the same as your Donut. Dual exhaust, carb, no cat, one smog pump.

Did not get the used compressor installed today. Spent most of the day replacing door hinge pins and bushings on the drivers side, then replacing the trans fluid + filter + in-line filter, and lastly the fan clutch.