UMI Performance A224-250T Viking Front Coilover Kit Double Adjustable 250lb Spring

The UMI Performance A224-250T is a Viking front coilover kit designed to deliver precision-tunable suspension performance. This kit pairs a high-quality USA-made hybrid coil spring with a 19-position double adjustable shock absorber, giving you a versatile setup capable of handling drag racing, street cruising, auto-cross, and road racing — all from a single shock.

What's Included:

• (2) Viking front coilover shocks — double adjustable compression and rebound
• (2) Front hybrid coil springs — 250 lb spring rate (11" tall, drag race application)
• Thrust bearing lower mount (T suffix)

Shock & Damping:

• 19-position independent compression and rebound adjustment — 361 total damping combinations
• Every shock is individually built, dyno tested, and serialized in Lakeville, Minnesota
• Shocks can be rebuilt by Viking or an authorized Viking rebuild center
• No spring compressor required — the adjuster ring acts as the compressor for easy installation

Spring Rate Guide:

• 250 lb (this kit) — 11" tall spring for drag race only; serious vehicle lightening required
• 350 lb — Small block cruise or drag race; lightening required
• 450 lb — Small block cruise or big block drag race
• 550 lb — Small block handling; all big blocks except drag

Ride Height Adjustment:

• Optional spanner wrench allows ride height adjustment while the shock remains mounted
• Optional thrust bearing kit (placed between the spring and spring seat) allows smooth, easy height adjustments by rotating the spring seat on a bearing — highly recommended for frequent adjustments
• Adjustable from stock height to up to 3" of front lowering

Mounting Options:

• Polyurethane (S suffix) — Recommended for mild street applications; provides ride comfort and reduced harshness
• Bearing (T suffix — this kit) — Recommended for performance applications including drag racing, auto-x, and road racing; improves reliability and responsiveness

The Viking coilover system is fully compatible with UMI's performance lower A-arm or your factory lower A-arm. For maximum handling gains, pair this kit with UMI's geometry-corrected upper A-arm featuring a tall ball joint. The hybrid spring design eliminates the need for a spring compressor during installation, making this a straightforward bolt-in upgrade. Springs are shot-peened and finished with a brilliant protective coating for long-lasting durability.