UMI Performance A205-250T Viking Front Coilover Kit Double Adjustable Polyurethane Spring - 250lb

The UMI Performance A205-250T is a Viking Performance front coilover kit designed for classic GM A-Body and B-Body applications. This kit pairs a high-quality USA-made hybrid coil spring with a 19-position double adjustable shock, giving you precise control over compression and rebound damping to suit street cruising, drag racing, auto-cross, or road racing — all from a single shock.

The coilover design eliminates the need for a separate coil spring compressor during installation, as the height adjuster serves as the compressor. Ride height is fully adjustable from stock height up to 3 inches of lowering using the included spanner wrench and optional thrust bearing kit. Every Viking shock is individually built, dyno tested, and serialized at their facility in Lakeville, Minnesota, and can be rebuilt at Viking or an authorized rebuild center.

Kit Contents:

• (2) Front coilover shocks — double adjustable compression and rebound (19 positions, 361 possible damping combinations)
• (2) Front hybrid coil springs — 250 lb/in rate (11" tall, designed for drag race applications)
• Spanner wrench for ride height adjustment
• Thrust bearing kit for easier spring seat rotation during height adjustments
• Polyurethane lower shock mount bushings

64-67 A-Body Spring Rate Guide:

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

65-70 B-Body Spring Rate Guide:

• 550 lb — Small block applications
• 650 lb — Big block applications

Key Features:

• 19-way independent compression and rebound adjustment — 361 total damping combinations
• USA-made hybrid coil spring with brilliant protective finish for long-term durability
• No coil spring compressor required — adjuster acts as compressor
• Adjustable ride height from stock to 3" lower
• Compatible with UMI lower A-arms or factory lower A-arms
• Polyurethane lower shock mount — suited for mild street applications
• Every shock built, dyno tested, and serialized in Lakeville, Minnesota
• Rebuildable at Viking or authorized rebuild centers

Lower Mount Note: This kit uses polyurethane lower shock bushings, which are best suited for street and mild performance applications. For corner carving, drag racing, auto-cross, or road racing, consider the bearing-end version for increased reliability and performance. Polyurethane bushings may produce different NVH characteristics compared to factory rubber mounts.