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