Mustang full length subframe connectors 1979-93 part # 912

The more performance improvements you do to the vehicle, the more demands are put on the uni-body. Subframe connectors provide resistance to chassis flex and therefore increase the integrity and rigidity of the chassis. Installing them will also help reduce rattles and squeaks from the car flexing over rough roads. They are a must for any performance application and work well in a street, road race, or drag race application. Subframe connectors are needed if using a roll bar or roll cage to tie everything together. Subframe connectors are powder-coated black and come with complete instructions. Additional gussets and hardware are also supplied with certain models. Rocker rail supports and jacking rails come bare steel.

Tech tip: For convertibles, we highly recommend using part #915 supplement kit with #920 seat brace in addition to the #912.

Tech tip: One important factor about subframe connectors is that on full uni-body cars such as Mustangs, Falcons and 82-02 Camaros and Firebirds, the subframe connectors must be welded and not bolted. Bolt on subframes do not have enough material surrounding the attachment area capable of resisting constant flexing without working loose. The boxed area simply starts to collapse allowing the subframe to work loose.

Tech tip: Round tube subframes (per given weight) resist torsional twist better than square tube versions. They provide the least amount of weight while remaining very effective. Additionally, round tubes allow the subframe to tuck up as high as possible for maximum ground clearance.