91C1500sleeper

So my 1500 came with a serpentine system from the factory. When I bought the truck the stock engine was replaced with an older sbc and v belt system. I have since R&R'd that motor with a mild sbc rated around 350-400 horses at the crank. My issue with the v belt is the lower alternator long bolt keeps shitting the bed and I have replaced it and the sleeve 4 times in the last year. The alignment on the belt is damn near perfect. The tension is best it can be with out the tell tale scream on start up. I would like to return the system back to the factory serpentine setup. I'm currently running no A/C but would like to again. I have searched for the stock system with no luck just the over priced after market systems. Any info would be great.

91C1500sleeper

Mod's please delete this post. I obtained all the stock parts today.