Another optional accessory bracket (010166) accepts the stock square-type Tecumseh and York air-conditioning compressors. Even if you don't want A/C in your truck, the brackets help if you want to mount an onboard air compressor system. All of the brackets are plate steel and have a nice gold-iridite finish. Best of all is that they are all designed to work together to easily adapt your accessories to a big-block. No time and effort is wasted junkyard diving or cleaning and painting parts only to have belts improperly aligned.