64-72 GM A-Body 1in Rear Lowering Springs

The UMI Performance 64-72 GM A-Body 1-inch Rear Lowering Springs (Part No. 4050R) deliver a controlled suspension drop for classic Chevrolet A-Body platforms built between 1964 and 1972. This pair of steel springs features a black powder-coat finish and is engineered to lower the rear suspension geometry by exactly one inch, altering the vehicle's stance while maintaining OEM-compatible mounting points on the frame.

Constructed from high-strength steel and finished in durable powder coat, these lowering springs work within the original suspension architecture without requiring frame modification or custom fabrication. The one-inch drop is mild enough to preserve ride comfort during street use while delivering the aesthetic change serious A-Body enthusiasts pursue. Spring rate and geometry are tuned specifically for 1964–1972 Chevrolet A-Body chassis, making them a direct bolt-in solution for Chevelle, Nova, and Malibu platforms from that generation. This is a paired set—both rear springs are included.

Classic car builders and restoration shops rely on UMI Performance springs for suspension modifications that respect original design intent while achieving desired drop. Whether you're lowering a street machine, show car, or vintage weekend driver, these springs integrate seamlessly with existing rear axle and frame geometry. Installation requires standard hand tools and basic mechanical skill; no cutting, welding, or exotic alignment work is necessary for proper fitment on an unmodified 1964–1972 A-Body frame.

UMI Performance has built reputation in the classic Chevrolet market for suspension components that balance function with ease of installation. A one-inch drop sits in the conservative range, avoiding the harsh ride and binding issues that come with aggressive lowering on original hardware. For builders seeking modest stance improvement on period-correct A-Body platforms, this is a proven, bolt-in choice.