Gallery: Speedtech Performance Delivers ExtReme Handling For B-Bodies

Are you ready for next level handling and comfort in your 1968-1970 B-body? What about the ability to stuff a 325 width tire under the stock front fenders? Adjustable ride height? Zero bump steer? Fully adjustable alignment angles? Well, starting March 1st you will be able to order Speedtech Performance’s ExtReme Front Subframe (EFSF) and Torque Arm Rear Suspension (TARS) and take your B-body to the next level.

Classic styling of the 70s Mopars are unique and will never be replicated. The downside to having a classic Mopar is it drives like a classic car. With Speedtech Performance’s EFSF and TARS your classic ride can handle the corners and stop like a modern supercar. Make your classic B-body out perform those modern muscle cars. Read all the details in Speedtech Performance’s press release below.


Speedtech Performance LLC. debuts expansion of Mopar product line to include B-Body
Saint George, Utah — Speedtech Performance is proud to announce chassis and suspension products for Mopar B-Body are now available. The ExtReme product line is expanding to B-Body for model years 1968 to 1970 and is priced comparably with our ExtReme product line. Products are available for order March 1st.

The ExtReme Front Subframe, (EFSF), delivers comfort and control through a complete change of the front suspension. The system eliminates the original torsion bars and replaces them with tubular upper and lower control arms and coil-over shocks. The EFSF provides nearly zero bump steer, fully adjustable alignment angles, and a sealed maintenance-free wheel bearing. The EFSF features Speedtech Performance’s industry exclusive forged spindle from 7075 Aircraft aluminum and a dual ram power rack and pinion.

No body modifications are necessary to fit a 325/30/19 tire upfront while still retaining a 30-degree steering angle. The EFSF is a removable bolt-in component of the chassis, simplifying the engine and transmission installation. The Speedtech Performance Mopar B-Body EFSF offers thoughtfully engineered comfort and performance otherwise unavailable in the market.

For the first time, the rear of Mopar B-Body can now receive Speedtech Performance’s proven Torque Arm Rear Suspension, (TARS). Many benefits of the TARS include eliminating suspension bind, maintaining a constant pinion angle, transferring load forces from acceleration and braking to the center of the car, and successfully managing movement of the body on the pitch axis. The Articulinks and Delrin torque arm bushings optimize performance from the axle housing, enhancing comfort and performance. Fitting a 335/30/20 in the rear will require mini-tubs, with no exterior body modifications.

B Body’s using Speedtech Performance’s ExtReme products are the ultimate expression of a classic muscle car for daily driving, classic styling with modern driving comfort, and performance. Owners can expect a greater level of comfort for long-distance drives and accurate feedback through the chassis and steering wheel.

Speedtech performance is passionate about classic muscle cars. These cars had impressive horsepower but were not celebrated f.or their cornering and braking performance. Speedtech Performance designs and manufactures chassis and suspension to make classic muscle cars perform like modern supercars. For more information, contact Speedtech Performance today at (435) 628-4300.

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Gavin Wollenburg

Gavin grew up around Mopars in his lakeside home in Ohio, his father showing him nearly everything he needed to know about haulin' some serious rear in his '72 Dart Swinger. Since then, he's made his little A-Body a serious autocross contender and regularly shows the modern boys how an old Dart does it!

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