1970 Mustang Torque Arm Rear Suspension System - Upgrade

Subframe connectors attach at rear frame brackets with two through bolts, like this.

Once the subframe connectors are bolted through the floorpan as shown, framerail bolt holes are drilled like this. For a bolt-on system, this is rock solid. Again, welding these pieces is optional but a good idea for optimal strength.

The crossbrace is fit-checked and installed.

In front, side subframe connectors install like this. They bolt across the framerails and through the floorpan via a reinforcement plate on top. Welding the side subframe connectors is an option, but not mandatory.

Once the subframe connectors are anchored top side, bolt holes should be bored across the framerail like this, via two holes in each subframe connector. These provide an attachment point for the crossbrace and driveshaft safety loop.

We like this driveshaft safety loop incorporated into the crossbrace.

The included control arms are installed next, as shown. The control arms are adjustable in this kit and will help with suspension setup.

The torque arm attaches at the differential's pinion. The bracket is installed first, then the torque arm itself.

This rear framerail bracket assembly mounts to the subframe connector and where the forward leaf spring mount would be. These will support control arms (sometimes called trailing arms) tied to the rear axle.

This is the complete subframe with crossbrace assembly installed. We're now ready to move on to the torque arm and rearend install.

This is a Currie 9-inch Ford axle assembly being jockeyed into position for installation. Currie built this axle with all the correct brackets for our TCI torque arm system. You can order a fully set up 9-inch directly from TCI when ordering your suspension. Other options include disc brakes and more.

The completed installation looks like this. There's also an adjustable sway bar, which has been installed to complement our torque arm suspension system. If you're going racing, be it drag or road racing, there's just nothing quite like this system for stability and control. The adjustable Panhard bar has its Heim joint on the left hand side and is easy to get to.

Our Currie axle is lined up and tied to the control arms. Careful attention is paid to getting the torque arm lined up with the crossbrace attachment point.

Ed Moss, founder of TCI, attaches the control arms and Panhard bar. Adjustable TCI coilovers are installed next.

Adjustable coilover shocks are tweaked two ways. Coils are adjustable for ride height. Valving is adjustable here via the control knob.