These are the 14 Bolt Brake Brackets for the fairly common swap of CNC hubs being put on a SRW 14 bolt Axle ('73-87) to narrow the overall width. They are the same as our standard Disc Brackets with the exception of the offset needed to position the caliper correctly on the flange. They are 3/8" Plate steel bent to the correct offset and bolt right up! These make the 14 bolt Disc Brake Conversion easy! They come in pairs. If you think about these they MUST be bent or machined, anything else will NOT fit. They still use the '75 Chevy 3/4 Ton Rotors & Calipers. After '99 all bets are off, the newer model 14 Bolt axles have a variety of patterns & offsets, use a weld on bracket for a newer 14 Bolt axle.