Designed for increased strength, minimized weight, improved handling, and increased braking capacity on component cars, street rods, drag cars and other custom / competition applications using Mustang ll suspension geometry. One-piece forged steel body is lightweight, yet nearly three times stronger than cast steel original equipment or aftermarket pressed pin replacement spindles. Integral mounting bosses forged into the main body of the spindle provide substantially increased anchoring security for lug or radial mount calipers on rotors up to 14.00". High strength forged steel arms are strong and can be run front or rear steer, or inverted if necessary to improve steering characteristics such as bump steer with relocated or custom mounted steering linkages.