The brackets they sold me the belt uses the PS pump groove in crank. So belt wraps around crank, compressor, PS pump. One long belt that reduces belt wrap around pulleys compared to the factory '69 AC setup which the Original Air kit is supposed to be catered too. Frequently confused with the '70 and up small block cars which are completely different. So near guaranteed belt squeal due to insufficient belt wrap. Threads around to address the '70 and up kits belt squeals but nothing no one anything on the '69 and back set ups no one knows anything.