MaxTrac 73-87 Chevrolet C10 2WD 2.5in/4in Lowering Spindle Kit (1in Rotor)

Give your classic C10 a modern stance with the MaxTrac KS331134 2.5” front / 4” rear lowering kit. Built for 1973–1987 Chevy and GMC C10 2WD trucks, this kit replaces the stock spindles, hangers, and shackles to provide a clean, lowered look while improving handling and ride quality. MaxTrac’s twin-tube rear shocks and shock extenders ensure proper suspension geometry and long-lasting performance. Constructed from heavy-duty steel with a grey powdercoat finish, this kit is the perfect blend of durability, style, and comfort for your classic truck.

This kit is designed for 1973-1987 Chevrolet C10 and GMC C10 2WD models with a 10-bolt rear axle. It's crucial to note the front brake rotor thickness distinction: some C10s in this era came with 1-inch (light duty) rotors, while others had 1.25-inch (heavy duty) rotors. This typically correlated with Gross Vehicle Weight (GVW) ratings and RPO codes (JB1, JB3 for 1-inch; JB5 for 1.25-inch). Identification can be done by measuring rotor thickness, overall height (rotor off), inner bearing size, or checking "MIN THICK" casting marks on the rotor.

The kit includes 2.5” front drop spindles (101125), rear hangers (411120), rear shackles (421120), shock angle correctors (401100), and two rear shocks (2000LL-4), along with installation hardware. Front shocks are not included. The kit weighs approximately 81 lbs. It is not recommended to use wheels wider than 9” or with less than 4.5” backspacing, as this voids the manufacturer warranty.

Installation requires selecting the correct front brake rotor thickness (1" or 1.25") when ordering and is designed for models with a 10-bolt rear axle. It does not fit 12-bolt or 14-bolt axle models.