TorqLink™ 68-72 GM A-Body Frame Stiffening Kit

• Increases factory frame rigidity, reducing flexing during acceleration and cornering
• Tubing is 1.75-inch 1020 DOM steel with 0.095-inch wall thickness
• Laser cut and mandrel bent to follow frame contours for maximum clearance
• Flat steel components made from 7- and 10-gauge steel sheet and 1/4-inch A36 plate
• Kit includes left and right stiffening tubes, boxing plates, and bolt in front and rear crossmember
• Stiffening tubes, boxing plates, and side tubes all require welding for installation
• Includes bolt-in transmission crossmember with 11 inches of fore/aft adjustment
• Transmission crossmember uses standard GM 1.50-inch center-to-center mounts
• All components laser cut and press bent (tubing mandrel bent) for accuracy
• Transmission and rear crossmembers jig welded and bolt to stiffening system
• Generous exhaust clearance provided with both bolt-in crossmembers
• Mounting hardware for transmission crossmember and rear crossmember included

Increase Your 68-72 GM A-Body Frame’s Stiffness for Better Handling and Traction

While many are familiar with GM’s A-body designation from 1964-1981, it’s an interesting fact that the A-Body was actually GM’s oldest and original platform used as far back as the 1920s. The muscle car era A-Body, most known via nameplates like Chevelle, GTO, Cutlass, and others, is arguably the most well-known A-body iteration that is much sought after still to this day. The 1968-1972 models of these nameplates featured lasting muscular body designs, big-block horsepower, and more that ruled high school parking lots and the boulevard. That said, these rides are now closing in on 60 years old and getting more tired by the minute. Strengthening their full frame chassis is the perfect starting point for suspension, braking, and horsepower updates.

As fun as these cars are, they all suffer from too much flex in the frame, causing all manner of issues like flexing in hard cornering that provides inconsistent suspension response. While the full perimeter frame of the Chevelle chassis provides more strength and better handling than a unibody car, the perimeter-style body on frame design does have its drawbacks. Since there is no X-frame or inner structure of any kind, the long perimeter open channel frame is more prone to torsional flexing. This means the frame’s twisting under acceleration, braking, and turning makes all these movements less precise. You’re leaving braking distance, acceleration torque, and handling on the table with your A-Body’s stock perimeter C-channel design frame.

Easily Add Our TorqLink™ Weld in Stiffening Kit to Your 68-72 A-Body’s Perimeter Frame

Constructed from 1.75-inch 1020 DOM steel tubing with a 0.095-inch wall thickness for maximum strength, our TorqLink™ frame stiffening kit is an easy to install GM A-Body frame brace system that ties the front and rear halves of the perimeter frame together in the weak middle section of the C-channel frame design. This is way more than a Chevelle frame boxing kit. It is a total frame support solution. This A-Body frame brace system includes weld-in left and right stiffening tubes, frame boxing plates, and additional support tubes that tie the frame boxing plates and stiffening tubes together in a ladder design. A bolt-in rear crossmember with ample dual exhaust clearance, and a bolt-in transmission crossmember further tie the stiffening tubes together. The bolt-in transmission crossmember is made up of a 7-gauge steel center section and 1/4-inch plate steel mounting end caps. Altogether, this creates eight points of contact with the perimeter frame with front and rear crossmembers helping to tie everything together. Installation requires only removal of exhaust, driveshaft, and factory transmission crossmember for room to work and weld the frame stiffening kit into place.

Installation of our TorqLink™ frame reinforcement kit for 68-72 A-Body cars can be accomplished on the ground with jack stands, or a lift and does not require separation of the body from the body on frame design of the A-Body. If you’re planning to have the frame painted or powder coated body removal will make access easier, but it is not necessary for installation of the TorqLink™ 68-72 GM A-Body frame stiffening kit. Cleaning/grinding of the perimeter frame areas where the stiffening kit and boxing plates will mount must be accomplished for proper welding procedures to allow installation. All pieces of the frame stiffening kit are pre-cut/notched, allowing quick mock up and fitment for welding with just simple checks for straightness and square to the chassis before firing up your MIG welder.

Supports Popular GM Automatic and Manual Transmissions

The bolt-in transmission crossmember utilizes the GM standard 1.50-inch center-to-center distance of GM’s two-bolt transmission mount. So, whether you’re using a stock or aftermarket mount with studs or threaded bolt holes you’re good to go. The left and right frame stiffening tubes include a pre-welded 14-inch-long transmission crossmember mounting tab that features 3/8-inch mounting holes that work in conjunction with the transmission crossmember’s 3/8-inch mounting slots for a total of 11 inches of fore/aft adjustment. The bolt-in crossmember is secured by the included 3/8-inch mounting hardware. This provides ample adjustment to mount any GM transmission, from a classic three-speed auto to modern electronic overdrives and of course 5- and 6-speed manuals, in your 68-72 GM A-Body. So, whether you’re retaining your current transmission or planning a transmission upgrade soon, this will be the last transmission crossmember you’ll ever need.

Our TorqLink™ 68-72 GM A-Body frame reinforcement kit is compatible with all GM A-Body models, including Chevy Chevelle; Pontiac LeMans, Tempest, and GTO; Oldsmobile Cutlass, Cutlass Supreme, and 442; and Buick Skylark, Special, and GS models and their various trim levels. Improve your 68-72 GM A-Body vehicle’s handling, braking, and acceleration with our easy weld-in frame stiffening solution and see just how much more capable your GM A-Body becomes.