I'm down to my last two FACTORY two groove pulley/dampener and my source is becoming extinct. They were found on the big trucks with air brakes where a separate belt was used to drive the air compressor. Probably will never use them since the a-c compressor/alternator set up that Vintage and others use in their kits are way easier to install and give zero trouble. Made a print out of Jerry's (HRL) double sheave set up and also have made a serpentine set up but all are more work heavy than the compressor/alternator set up in the kits. Picture of each---the serpentine set up shown here was in the early stage but finished ones are trouble free. DO NOT make ones to sell.

[img]https://i.postimg.cc/rR5cJmcb/IMG-4166.jpg[/img]

[img]https://i.postimg.cc/LgDQ2KV5/IMG-4179.jpg[/img]


Evan