Thank you Mike...I really appreciate the help. I fanageled a schematic from our local GM shop and it shows what you said about what goes around what. I tried your PN #'s up at GMDirect.com and they don't come up. A single pully to pancake on the other two would indeed make life alot easier. The only thing GM shows is a three pully system PN# 14023159 for $55 bucks. GM Direct has this one for $40 and change. I would much rather slip one on than change the whole shootin' match. I'll go down and bend their ear (at our local GM shop) and see what they can give me.
Thanks again Mike
Ol'Fretfull Freddie

Well...I found a place in Olympia Washington that has the extra pulley for the "smog pump" They are "Corvette and High Performance" (corvhp.com). It seems that this particular set-up is from "80 thru 82". Hopefully...I'll have her up and running soon.

Good luck. Mike

Scratch, good you found the pulley, how bought the belt? That part no. and size belt I gave you was for the belt off my 79. In looking through Corvette America's catalog I see they carry the belts (p.n.36319 $19). The p.n. for the 81 is different than the 79 so double check before you look for the size I mentioned. Mike