UMI Performance A224-350R Front Coilover Double Adjustable Shock & Spring Lowering Kit 350lb

The UMI Performance A224-350R is a complete front coilover kit designed for maximum versatility across street, strip, auto-cross, and road race applications. This kit pairs a high-quality USA-made hybrid coil spring with a Viking 19-way double adjustable coilover shock, delivering 361 possible damping combinations to suit virtually any driving condition.

Key Features:

• Includes (2) front double-adjustable coilover shocks — built, dyno tested, and serialized in Lakeville, Minnesota
• Includes (2) front hybrid coil springs — 350lb spring rate, ideal for small block cruise or drag race applications with lightening required
• 19-way independent compression and rebound damping adjustment — 361 total tuning combinations
• Bearing-mounted bottom for increased reliability and performance in performance driving applications
• Allows ride height adjustment from factory height to 3 inches of lowering
• No coil spring compressor required — the adjuster functions as the compressor for easy installation
• Brilliant protective finish helps preserve spring appearance long-term
• Shocks are rebuildable at Viking or an authorized Viking rebuild center

Spring Rate Guide:

• 250lb — 11" tall springs for drag race only; serious weight reduction required
• 350lb — Small block cruise or drag race; lightening required
• 450lb — Small block cruise or big block drag race
• 550lb — Small block handling, all big blocks except drag

Lower Mounting Options:

• Polyurethane bushing — Recommended for mild street use; provides ride comfort and reduced harshness
• Bearing end (included with A224-350R) — Recommended for drag racing, auto-x, road race, and corner carving; delivers increased reliability and performance

Optional Spanner Wrench & Thrust Bearing Kit: A spanner wrench is required to adjust ride height while the shock remains mounted. The optional thrust bearing kit, placed between the spring and spring seat, allows the spring seat to rotate on a bearing for smoother, easier height adjustments. While not required for installation, UMI strongly recommends using a thrust bearing kit when making ride height adjustments.

Viking coilovers are fully compatible with UMI's lower control arms as well as factory lower control arms. For best handling results, pair with UMI's geometry-corrected upper control arm loaded with a tall ball joint.