Mastodon 1964-1972 GM A – F – X Body Disc Brake Spindles

Disc brake spindle upgrade for the GM A-, F-, and X-body platforms — the bolt-on path to modern brakes on a 60s/70s GM. Stock-height design preserves factory ride height and steering geometry; designed specifically to accept disc brake calipers, brackets, and rotors. Forged from 1045 carbon steel. Use with disc-brake-compatible 15″+ wheels. Fitment: A-body 1964–1972: Chevelle, El Camino, Monte Carlo, GTO, Skylark F-body 1967–1969: Camaro, Firebird X-body 1968–1974: Nova, Ventura, Apollo Specifications: Type: Stock-height disc brake spindle Material: Forged 1045 carbon steel Wheel size: 15″ minimum (disc brake compatible) Required: Pair with matching disc brake calipers, rotors, and brackets