Laser cut and jig-welded box construction makes Speed Tech's subframe strong, yet it still only weighs 125 pounds. The tubular control arms have Guldstrand geometry, and are designed to fit up to a 295-series tire, and wheels with a 7-inch backspacing. Double-adjustable QA1 coilovers or Ridetech Shock Waves are available to pair with stock-height forged or tall AFX-style spindles, and Baer or Wilwood brakes. Factory alignment holes ease installation and alignment, and built-in tow/tie-down hooks make trailer loading easy. Those looking to upgrade piece-by-piece can even reuse stock spindles, brakes, wheels, sway bar, and control arms.
Torque Arm Rear Suspension
Adjustability is the name of the game with Speed Tech's torque arm rearend upgrade; roll center, Panhard bar, ride height, pinion angle, instant center location, and even wheelbase are all adjustable. The Articu-link lower control arms use Delrin bushings for bind-free articulation, and will allow up to a 345-series tire on a 20-inch rim. Both 9-inch and 12-bolt rear kits include QA1 adjustable coilovers or Ridetech shocks. A Strange 9-inch gets a choice of gear ratios from U.S. Gear Posi, and 31-spline axles.
Both front and rear kits are direct bolt-ins with no modifications or cutting to be made. Front and rear packages can be combined into a single, tuned Track Time kit for a complete upgrade front to rear.
Front subframe kits start at $4,695; rear torque arms start at $1,999; complete Track Time kits from $9,899
Alabama Slammer F-Body Chassis
This chassis is for those who don't mind removing floorpans and fabricating custom mounts in order to get low. This design tucks the frame up flush with the bottom of the rocker, which serves to hide the rails and make the rockers the lowest point of the chassis. Standard ride height with 18-inch fronts and 20-inch rear wheels is approximately 4 1/2 inches. Front suspension is SRG's own IFS design with tubular control arms, rack-and-pinion steering, and a hidden sway bar. Street Rod Garage's unique reversed watts link setup on a custom 9-inch housing is standard, but several options including IRS are available. Custom chassis are built in-house, so modifications to suit a Nova are feasible.
You will need to have formidable fabrication and welding skills to install this chassis under your F-body or Nova, but it will slam the driveable ride height unlike anything else.
Complete chassis less wheels and tires start at $14,500
Camaro Clip Subframe
Though Scott's built-to-order subframes can be had with anything from bone stock to performance parts, most opt for Scott's IFS package that includes 1 1/8 to 1 1/4 wall tubular, unequal-length control arms, 11-inch discs, stainless steel rod ends, rack-and-pinion steering, sway bar, and drop spindles. Standard upgrades are 11- to 13-inch Wilwood brakes with four- and six-piston calipers, and a choice of coilover, airbag, or Ridetech Shockwaves.
The subframe is designed to be a painless bolt-in.
Starting at $4,195
Tubular Subframe Package
Based on a mandrel-bent and completely Heliarc-welded tubular design, TCI's front subframe is engineered with 2-inch drop spindles, coilovers, rack-and-pinion steering, and a custom sway bar with solid endlinks to transform handling, and 1-inch-thick GM discs to bring braking to modern specs. All mounts and brackets are preinstalled and accept all GM engines and transmissions.
Performance Style Four-Link
It may look like a drag race-style four-link, but the unequal length adjustable four-link rear with coilover shocks uses proper geometry to eliminate wheel hop. An adjustable Panhard bar is excellent for lateral location, allowing flexible suspension tuning for cornering.
Torque Arm System
TCI's torque arm rear suspension is a unique approach that was designed to eliminate the suspension bind that occurs when cornering on leaf springs. The torque arm features a slider on the front that allows controlled movement as the car goes through suspension travel. This lets the coilovers and sway bar work more effectively with no suspension binding variables.
The front subframe and four-link kits are true bolt-ins requiring no permanent modifications to the car or chassis. The torque arm requires welding the axle brackets, Panhard bracket, and optional sway bar brackets on the 3-inch axle housing tubes of a Ford 9-inch-style housing. Optional TCI housings come with all brackets installed.
$4,133 for the front subframe package; $1,092 for the rear four-link