Wilwood ProSpindles are designed for increased strength, minimized weight, improved handling, and increased braking capacity on component cars, street rods, drag cars, and other custom and competition applications using Mustang ll suspension geometry. ProSpindles feature a one-piece forged steel body that is lightweight, yet nearly three times stronger than cast steel original equipment or aftermarket pressed pin replacement spindles. A 1/2 in. taller upper spindle body improves the front suspension geometry with a higher front roll center and decreased body roll with no changes to the lower control arm, frame height, or steering linkages. 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 inches. High strength forged steel steering arms are included and can be run front or rear steer, or inverted if necessary to improve problematic steering characteristics such as bump steer with relocated or custom mounted steering linkages. ProSpindles use common Pinto and Mustang II wheel bearings, seals, ball joints, and tie rod ends for easy maintenance. Wilwood ProSpindles are available in your choice of stock ride height or 2 in. drop designs.