UMI Performance A205-350T Viking Front Coilover Kit Double Adjustable Poly Spring - 350lb

The UMI Performance A205-350T is a Viking Performance front coilover kit designed for 1964–1967 GM A-Body and 1965–1970 GM B-Body vehicles. This kit pairs a high-quality USA-made hybrid coil spring with a double adjustable shock, delivering a versatile suspension solution suitable for street cruising, drag racing, autocross, and road racing — all in a single setup.

At the heart of this kit is a 19-position double adjustable Viking shock featuring independent compression and rebound adjusters, providing 361 possible damping combinations to precisely dial in your suspension for any application. Each shock is individually built, dyno tested, and serialized at Viking's facility in Lakeville, Minnesota, and can be rebuilt at Viking or an authorized rebuild center.

The 350 lb/in spring rate included in the A205-350T is suited for small block cruise applications or drag race use with appropriate weight reduction. Additional spring rate options are available separately for different performance goals:

• 250 lb/in — Drag race only; serious vehicle lightening required
• 350 lb/in — Small block cruise or drag race with lightening required (this kit)
• 450 lb/in — Small block cruise or big block drag race
• 550 lb/in — Small block performance handling or all big blocks except drag

Kit Includes:

• (2) Viking double adjustable front coilover shocks
• (2) USA-made hybrid coil springs with brilliant protective finish
• Spanner wrench for ride height adjustment without removing the shock
• Thrust bearing kit for smoother, easier spring seat adjustments

Key Features:

• 19-way adjustable compression and rebound damping (361 possible combinations)
• Adjustable ride height from factory height to up to 3 inches of lowering
• No coil spring compressor required — the adjuster acts as the compressor
• Polyurethane lower shock mount included; ideal for mild street applications
• Hybrid coil spring manufactured in the USA with a protective finish for long-term durability
• Rebuildable shock at Viking or authorized Viking rebuild centers
• Compatible with UMI's lower control arms or factory lower control arms

Polyurethane vs. Bearing Mount: This kit ships with polyurethane lower shock mounts, which are recommended for street driving and provide a comfortable, compliant ride. For more aggressive applications such as autocross, road racing, or drag racing, bearing end mounts are available separately for increased reliability and precision. Note that performance mounting hardware — whether poly or bearing — may exhibit different NVH characteristics compared to factory rubber-mounted components.

The A205-350T integrates seamlessly with UMI's geometry-corrected upper control arm with tall ball joint for a complete performance front suspension upgrade, or it can be used with the factory lower control arm for a straightforward bolt-in installation.