The B378AM is Viking’s competition-focused rear shock for high-horsepower Mustang drag combinations that demand tight control of rear separation and tire loading. Its Crusader valving is aimed at 600-plus-horsepower small-tire and drag-radial cars where fine suspension adjustments can make the difference between spinning and leaving cleanly.
Competition Tuning Range
Nineteen compression positions and twenty-two rebound positions provide 418 possible combinations. Every click changes shock force, allowing the chassis to be adjusted for track temperature, surface preparation, tire choice and power delivery.
- Crusader competition-series rear shock
- “M” medium-firm rebound valving
- Designed for 600+ HP small-tire and drag-radial applications
- 19 compression and 22 rebound positions
- 418 total adjustment combinations
- No special tools required for external adjustments
- Intended for standard ride height through approximately 2 inches lowered
Fitment: 2018-2025 Ford Mustang applications listed for the factory MagneRide chassis configuration. This conventional competition shock does not retain electronic MagneRide damping control.
Part number: B378AM
Competition-use notice: Viking Crusader shocks are designed for competition use. Follow Viking’s off-track settings and setup instructions. Due to the solid-performance mounting design, additional suspension noise may be present. Installed shocks are not returnable.
California Proposition 65 Warning: Cancer and reproductive harm — www.P65Warnings.ca.gov.
