260 WARNING: For Proposition 65 information, see p. 183 Some parts are not legal for sale or use in California or other states with similar laws/regulations—see p. 183 for details. CHASSIS & SUSPENSION QA1 Suspension Components Tighten up your turns and launch quicker in the straightaways with the performance of QA1 suspension components. Call us or visit SummitRacing.com for applications and complete details. Rear Trailing Arms and Control Arms QA1 trailing arms and control arms are stronger and lighter than factory equipment. The upper tubular arms are built from 11⁄4"-diameter .120"-wall steel, and the boxed lower arms are made from rectangular .120"-wall cold-rolled steel to reduce fl ex. They feature a gloss-black powdercoat fi nish and include greaseable fl uted polyurethane bushings. The heavy-duty adjustable upper control arms can be adjusted on your vehicle to dial in optimal handling, and have a spherical ball assembly with Delrin® bushings that allows the rear suspension to move more freely. They include graphite/polyurethane differential bushings and hardware. Upper tubular trailing arms, pair ........................ from $249.95 Lower boxed trailing arms, pair ......................... from $374.95 Adjustable upper control arms, pair................... from $374.95 Rear Anti-Hop Bars Increase the effectiveness of sticky race tires! These bars relocate the upper trailing arms to change the instant center of the rear suspension. Include graphite/polyurethane bushings. QA1-5213 GM A-body, 1965-72 ......................kit $305.95 QA1-5214 GM G-body, 1978-88 .....................kit $305.95 The perfect stance for your C10! Give your Chevy C10 sports car-like handling and a perfect lowered stance with a QA1 coilover conversion system. The black powdercoated systems include a pair of single- or double-adjusable shocks outfi tted with your choice of high-travel 650-, 750-, or 850-lb./in. coil springs. The complete (front and rear) setup delivers 4-corner height adjustability. Minor cutting and fabrication required—call us or visit SummitRacing.com for complete details, instructions, and all of the options for your C10. Front Coilover Conversion Systems The front systems for 1963-87 C10s include a pair of lower control arms constructed from 12-gauge HSLA steel tubing. The arms come with QA1 performance ball joints and maintenance-free polymer bushings. An upper bracket (used with the OE upper control arm) adds 3-4° of caster. Or for more strength, plus additional caster and camber adjustment, choose a system with tubular upper control arms. Compatible with spindles that use 1973-87 style ball joints. Provides an adjustable drop of 1"-3", and up to 5" when used with drop spindles. Front Coilover Conversion Systems, each* ........................................from $2,015.95 Front Coilover Conversion Systems with upper control arms, each*; from $2,506.95 Rear Suspension Conversion Systems Designed for 1963-72 C10s originally equipped with coil springs, the bolt-on systems place coilover shocks on the outside of the frame rail (closer to the rear wheels) for improved cornering stability and additional clearance for aftermarket fuel tanks. Plus, a pair of adjustable length, 7-gauge DOM steel tubular truck arms let you set the wheelbase to your exact specifi cations. The arms have integrated pinion angle adjusters, eliminating the need for shims, and include QA1 X Series self-lubricating rod ends. You also get a panhard bar, a brace kit, and a bolt-on C-notch kit. The systems accommodate up to a 6" drop and can be installed without removing the bed. Rear Suspension Conversion Systems, each* ....................................from $3,101.95 Sway Bars Complete your suspension upgrade with a lightweight, hollow core 4130 chromoly sway bar. The 11⁄4" diameter, 3/16"-wall bars are precision CNC-formed for a true bolt-on installation and include mounting components. QA1-52896 1963-87, front ..........................................................each $489.95 QA1-52897+ 1963-72, rear............................................................each $489.95 QA1-52898+ 1963-72, front and rear ............................................... kit $979.95 *An oversize or truck freight fee may apply. Details at SummitRacing.com. +Works exclusively with QA1 rear suspension system. GM 2.0 Front Control Arms QA1 tubular steel 2.0 front control arms are some of the lightest control arms you can get! They have a durable black powdercoat fi nish and come in your choice of three styles to meet your performance goals: Street control arms have low-defl ection polyurethane bushings for a smooth ride. Pro-Touring arms have 1" longer ball joints for improved camber gain and an optimal contact patch during hard cornering. Drag Race arms have adjustable droop stops for a more controlled launch. Applications available for select GM A/F/G/X-body vehicles and S10 trucks. Visit SummitRacing.com for Made in the USA status and to fi nd your application. 2.0 Street front control arms, pair ......................................................... from $635.95 2.0 Pro-Touring front control arms, pair ................................................ from $739.95 2.0 Drag Race front control arms, pair .................................................. from $776.95 Sway Bars QA1 sway bars are designed and tested to reduce body roll and keep your tires planted. The gloss-black powdercoated bars are CNC-bent from hollow-core 4130 chromoly steel (front) and solid 1045 cold-formed steel (rear) for a precise fi t in stock locations. Most bars feature adjustable end links to customize roll stiffness, greaseable polyurethane bushings (where applicable), and zinc-plated hardware. The front and rear bars are available individually and in sets for select classic and late model GM vehicles and Ford Mustangs. Mopar A/B/E-body front bars (for use with QA1 K-members only) also available. Sway bars, each* ................................................................................... from $292.95 Sway bar sets, each* ............................................................................. from $529.95 *An oversize fee may apply. Details at SummitRacing.com. QA1 Suspension Components for Ford Mustang Tubular K-Members Maintain optimum anti-dive geometry on lowered or stock-height Mustangs with these tubular K-members from QA1. Fabricated from HSLA steel, they’re 50% lighter than stock, improve header and oil pan clearance, and bolt right on, retaining your factory wheelbase. They include stainless steel steering rack relocation inserts which provide height adjustment to minimize bump steer, plus bolt-on engine mounts to simplify engine swaps. K-member will accept factory control arms, but requires the use of coilover struts (sold separately). Price Each QA1-MUK11* 1979-93, 5.0L ..............................................................$593.95 QA1-MUK12* 1996-2004, 4.6L ..........................................................$593.95 Street Performance and Race Front Control Arms These lightweight tubular control arms feature forged ball joint housings with smooth, low-friction ball joints that are greaseable and rebuildable. Street Performance control arms are equipped with greaseable, low-defl ection polyurethane bushings. Race control arms have greaseable, low-friction composite bushings for enhanced handling precision, plus eccentric sleeves for on-car camber and track width adjustment. Both styles are compatible with factory and QA1 K-members, and must be used with coilover struts. Arms for 1979-93 Mustangs include adapters for SN95 spindles. Price/Pair QA1-52740 1979-93 Street Performance .......................................$479.95 QA1-52540 1979-93, Race ..............................................................$589.95 QA1-52741 1994-2004, Street Performance ...................................$479.95 QA1-52541 1994-2007, Race ..........................................................$589.95 Aluminum Caster/Camber Plates Made from lightweight, corrosion-resistant anodized billet aluminum, these plates let you dial in additional positive caster and negative camber for improved handling. Laser-etched references simplify setup and take the guesswork out of adjustments. For use with QA1 Proma Star struts only. Price/Pair QA1-CC112 1990-93 ........................................................................$319.95 QA1-CC114 1994-2004 ....................................................................$319.95 Stocker Star Rear Shocks Customize your handling with the turn of a knob! Twin-tube Stocker Star shocks have 18 selectable damping levels, plus lightweight machined aluminum bodies, a centerless-ground hard-chrome piston rod, and a bright anodized fi nish. Price Each QA1-TS706 1979-2004 ....................$214.95 *An oversize fee may apply. Details at SummitRacing.com.
