Fastest and most accurate way to set and measure rear wheel position.

• Measures distance of rear axle in relation to truck mounts and rear suspension cross member.
• Set rear "lead" and plot rear "steer".
• Digital read-out scales give accurate reliable information to within 1/1000 of an inch.
• See adjustments in real time as you make them.
• Dual lasers and digital scales measure left and right sides simultaneously.
• Designed with and for IROC and adaptable to NASCAR, ARCA and others.
• Laser beam accurately measures side-to-side location of rear tires in relation to frame.
• Measures wheelbase with optional extension bar.
• Great tool to set "tuck" on front fender!