b'GM F/X AXT-RSXA. Each ExtReme subframe is Jig welded in the Speedtech manufacturing facility in St. George, Utah. Individual frame rail components are laser cut and CNC formed to ensure consistent close tolerances and are tab-through internally gusseted construction for superior strength. Includes all factory based mounting points for an easy bolt-in installation.C. ExtReme CNC formed transmission cross member works in conjunction with engine mounts to help achieving optimum pinion angle. The adjustable cross member allows a wide range of mounting positions that allows near any GM engine and transmission combination.D. ExtReme tubular control arms are CNC cold formed and precision TIG welded for superior strength and consistency. They feature ultra-high clearance profiles for more steering angle, additional built in caster and camber gain geometry, billet stainless cross shafts with adjustable caster shims, Delrin bushings and performance ball joints. E. The Ron Sutton re-designed ATS ExtReme front spindles allow any C5/C6/C7 Corvette based caliper to bolt directly on. Rear brakes are based on the 9 Ford axle with Torino housing ends. These types of mounting bosses allow a wide range of brake options from Wilwood, StopTech, Brembo & Others.F. Sweet Road Racing Rack & Pinion steering systems are standard with all ExtReme chassis and subframe packages. External Dual Power Cylinder handles turning big tires like butter. This rack & pinion offers precision steering with a quicker feel and better feedback in a lighter weight package. G. Exclusive to the ExtReme suspensions are race tuned, three piece splined sway bars. This allows each individual chassis or subframe to be custom fit with sway bar rates specific to your vehicle and driving style.H. JRI double adjustable shocks, with digressive pistons, modified bleed circuit & tie-down valving are standard with the AXT-RSX Package. Other Penske & JRI Shocks are available. I. Better than any other Pro-Touring spindle, the Ron Sutton re-designed forged, 7075 aluminum, ATS ExtReme spindles offer reduced KPI/SAI angle, max Ackerman, virtually ZERO bump steer, 30 degrees of steering angle, low scrub radius, heavy duty C7 Corvette hubs and C5/C6/C7 based caliper mounting. 549'