UMI 4071 Coilover Kit — 1964-1967 GM A-Body (Front & Rear, 2–3" Lowering)

Deliver race-ready handling without compromise using UMI’s all-in-one coilover kit for 1964-1967 A-Body cars, including Chevelle, El Camino, Cutlass, GTO, and more. This kit simplifies suspension upgrades by combining both front and rear coilover systems under one SKU — giving you drop, adjustability, and performance in a single package. UMI Performance

Key Features & Benefits

• Complete front + rear solution — inclusive kit minimizes part chasing

• 2–3" lowering range — perfect for aggressive street stance without over-dropping

• Viking hybrid front setup — tuned with 550 lb/in springs for balanced front-end performance

• UMI rear bracket system — allows full ride height, spring rate, and damping adjustability

• 225 lb/in rear spring rate — well suited for street, strip, and handling driving styles

• 19-way adjustable Viking shock — control compression and rebound independently for your setup

• Integrated trailing arm relocation brackets — multiple mounting angles help optimize instant center and traction

• Heavy-duty construction & finish — precision laser-cut parts, reinforced mounts, and durable powder coat ℅ UMI’s quality standards UMI Performance

• 100% USA made — raw materials, fabrication, and welding all domestically sourced ℅ UMI’s brand promise UMI Performance

Fitment & Notes

• Fits 1964-67 GM A-Body platforms (Chevelle, El Camino, Cutlass, GTO, etc.)

• Stock axle housing only — not compatible with aftermarket housings in most cases UMI Performance

• Welding required for drag or slick use — for high-power drag setups (10.50s or faster), welded installation is necessary UMI Performance

• Exhaust clearance warning — some exhaust tailpipes may interfere with rear shock bodies

UMI's complete coilover kit simplifies handling adjustments with a single convenient part number. This kit combines both front and rear setups into one package, allowing you to lower your car by up to two inches. The trailing arm relocation brackets provide multiple angles for improved traction and steering control. The kit includes a Viking hybrid front setup with a 550 lb/in spring rate and UMI's race-proven rear bracket system featuring a 225 lb/in spring rate, suitable for street, strip, and handling applications. Optional thrust bearings and a spanner wrench are available for purchase. If you need alternative rates or heights, please contact UMI technical support. UMI's bolt-in rear coilover kit permits full ride height, spring rate, and damping adjustments, along with trailing arm adjustment for tuning the instant center. The kit is equipped with reinforced upper mounts and lower brackets for a secure fit. The included Viking Performance shock is 19-way adjustable in compression and rebound, allowing customization for various applications. **RECOMMENDED ADD-ONS** - **Thrust Bearings**: Facilitate easier adjustments (not required). - **Spanner Wrench**: Necessary for height adjustments. **RECOMMENDED UPGRADES** - **Optional Shock Tower Brace**: Adds chassis reinforcement (fitment with all exhaust systems not guaranteed). **INSTALL NOTES** **WELDING REQUIRED FOR DRAG USE**: Vehicles running 10.50 or faster or using slicks require welding. Bolted brackets are suitable for street performance, auto-x, and road race applications.