OEM-Style Performance Subframe Package
The performance subframe package uses a reproduction OEM-style subframe that looks stock, but performs so much better, thanks to Global West's revised geometry tubular control arms, QA1 coilovers, 1-inch sway bar, 2-inch drop spindles, and 13-inch six-piston Wilwood brakes. To eliminate steering slop, a new steering linkage and a fast-ratio 12:1 power steering box are included.
Tubular Control Arms
Tubular control arms are available for standard coil springs or coilovers, but both styles are re-engineered to reduce bumpsteer, increase straight-line stability, and improve camber. The uppers include billet cross-shafts, ball joints, and bumpstops. (New alignment specs are also provided). Both Del-a-lum and polyurethane bushings are optional.
Del-a-lum bushings kits are unique in that they respond like a bearing with little to no deflection, but without punishing harshness. They're an option in all Global West control arms, and fortunately, are easily swapped into stock control arms and leaf springs, making it easy to upgrade handling on original parts.
Stage 2 Suspension Kit
In the Stage 2 kit, revised-rate coil and leaf springs and adjustable shocks are combined with Del-a-lum bushings and offset billet shafts (for the factory control arms) to allow for more aggressive alignment specs. The spring combo lowers the car about 1 inch from stock.
Since the subframe is an OEM style, it's a direct slide-in. The Stage 2 suspension, tubular control arms, and Del-a-lum bushings are bolt-in as well.
$6,699.99 for the subframe package, $1,175 for the Stage 2 Suspension kit, tubular arms start at $446.99, and Del-a-lum packages start at $96.99
Track Pack and Total Vehicle Systems
Designed as a complete vehicle bolt-on system, the Hotchkis Track Pack and Total Vehicle Systems are based on the same technology Hotchkis uses to compete in the Goodguys Autocross series. The kit includes geometry-corrected upper and lower tubular control arms, billet ride height adjustment shims, 3-inch drop Sport Coil springs, 3-inch drop Sport leaf springs, front and rear Sport sway bars CAD-designed subframe connectors, and Hotchkis-exclusive Bilstein HPS1000 shocks. For those looking to upgrade in stages, all components are available separately as well.
The complete TVS system bolts on with standard handtools and requires no cutting or modifications, though it does
work best when paired with Hotchkis Handle Bar chassis braces.
Kits starting at $1,564.95
Centerdrive Truck Arm Suspension
Though they're based on the '60-72 GM truck suspension, NASCAR has been using truck arm rear suspensions exclusively since 1963, and Hotrods To Hell (HTH) agrees that the simplicity of design and tunability of coil springs mounted on screw jacks makes them an excellent option for the road course and dragstrip. The kit also eliminates the need for additional bracing, since it triangulates the subframe, rocker pinch welds, and forward leaf-spring bulkhead. Also, by propelling the car from the center of mass, HTH has seen F-body e.t.'s drop by a full second and gain 8 mph. A double-adjustable Panhard bar is included, and a rear sway bar won't be necessary. HTH also carries front springs, shocks, and control arm packages designed to complement the truck arms.
Welding is required, but the Centerdrive truck arm kits are designed to be installed at home in roughly a weekend.
$1,995 to $2,295