Mastodon Drop Spindles 2.5" GM 63-70 Truck

2.5" drop spindles for 1963–1970 GM C10 / GMC trucks (2WD). Direct bolt-on lowering without compromising suspension geometry — drops the front 2.5" while accommodating disc brake conversion at the same time.

Built from premium ductile iron with 4140 chromoly CNC-machined axle pins. Designed to accept factory ball joints and tie rod ends for a clean, no-surprises install.

Specifications:

• Fitment: 1963–1970 Chevy C10 / GMC C15 (2WD only — pickup, panel, Suburban)
• Drop: 2.5" front-end lowering
• Material: Ductile iron with 4140 chromoly axle pins
• Brake compatibility: Works with 1971–1987 1-1/4" thick rotors and calipers (disc brakes required)
• Ball joints / tie rods: Uses factory components

Note: requires conversion to disc brakes — original drum brake hardware will not fit. Sold as a pair.