1968-1970 / Mopar B-Body / Extreme Track Time Package

Description

> Description COMPLETE PERFORMANCE SYSTEM Transform your classic 68-70 Mopar B-Body (charger, Superbee, GTX)  into a true modern performance machine with the Speedtech ExtReme Front Subframe and Torque Arm Rear Suspension. Engineered as a complete system, it delivers increased chassis rigidity, optimized geometry, and predictable handling—on the street, track, or autocross. FRONT-END PRECISION & WIDE TIRE CAPABILITY The ExtReme front subframe is designed for serious performance, with clearance for up to 315mm front tires, refined steering geometry, and exceptional rigidity. Paired with QA1 or JRi coilovers and a dual-power rack and pinion from Sweet Mfg., it provides precise, connected steering feel with a balanced, street-friendly ride. SUPERIOR TRACTION & BINDLESS REAR PERFORMANCE The Extreme Torque Arm is engineered to maximize traction and stability under acceleration. Optimized anti-squat geometry plants the rear tires, reducing wheel hop and improving launch performance, while maintaining consistent axle control through corners. Unlike traditional 4-link setups, the system articulates through suspension travel without bind—delivering smoother operation and improved ride quality. PRECISION HANDLING & CONTROL When paired with a panhard or watts link, the system maintains proper rear axle positioning for predictable, confidence-inspiring cornering. The result is a balanced chassis that responds consistently at the limit. FULLY ADJUSTABLE FOR ANY APPLICATION Built-in adjustability allows you to fine-tune pinion angle, instant center, and suspension preload to match your setup—whether you’re cruising, drag racing, or autocrossing. RACE-READY STRENGTH, STREET-READY RELIABILITY Constructed from high-strength materials with a rigid, lightweight design, this system is built to handle serious power and repeated abuse without compromising durability or performance. BOLT-IN INSTALLATION, NO MAJOR MODS Designed to bolt into factory locations, this system requires no major fabrication. It retains rear seat and trunk space while accommodating a wide range of engine and transmission combinations. PROUDLY MADE IN THE USA Every Speedtech system is precision-built in the USA using premium materials and expert craftsmanship—engineered to perform and built to last. Tech Info Extreme Subframe Install Torque Arm Install Close × Related Products Quick view 1968-1970 Mopar B-Body Extreme IRS Chassis View Product Quick view 1968-1974 GM X-Body Extreme Track Time Package View Product Quick view 1970-1974 Mopar E-Body Extreme Subframe View Product