UMI Performance A204-550R Viking Front Coilover Kit Double Adjustable Polyurethane 550lb

The UMI Performance A204-550R is a Viking front coilover kit that combines a high-quality USA-made hybrid coil spring with a 19-position double-adjustable shock absorber. Designed for performance street driving, drag racing, auto-x, and road racing, this front coilover kit delivers up to 3 inches of ride height drop with fully adjustable damping to suit virtually any driving style.

Each shock is individually built, dyno tested, and serialized in Lakeville, Minnesota, ensuring consistent quality and traceability. The Viking shocks are also rebuildable at Viking or an authorized Viking rebuild center, extending the long-term value of the kit.

Key Features:

• Includes (2) front double-adjustable coilover shocks and (2) front hybrid coil springs — Made in USA
• 19-way independent compression and rebound damping adjustment with 361 possible combinations
• Adjustable ride height from stock to 3" lowering — no coil spring compressor required
• Brilliant protective finish keeps springs looking great for years
• Polyurethane lower shock mount for comfortable street use
• Compatible with UMI's lower a-arm or factory lower a-arm
• Shocks are rebuildable at Viking or an authorized Viking rebuild center

Spring Rate — 550 lb: Recommended for small block handling applications and all big block configurations except drag racing. Available spring rate options include 250 lb (drag race only), 350 lb (small block cruise or drag race), 450 lb (small block cruise or big block drag race), and 550 lb (small block handling, all big blocks except drag).

Optional Accessories:

• Spanner Wrench: Used to adjust vehicle ride height while the shock remains mounted — required to make height adjustments
• Thrust Bearing Kit: Placed between the spring and spring seat for easier height adjustments; highly recommended but not required for installation

Mounting Note: The polyurethane lower mount is suited for mild street applications. For corner carving, drag racing, auto-x, or road racing, bearing end mounts are recommended for enhanced reliability and performance. By their nature, performance polyurethane mounts may feel or sound different than OEM rubber-mounted components.

Pairs seamlessly with UMI's geometry-corrected upper a-arm with tall ball joint for maximum handling performance on the street or track.