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QA1 HD Pro rear drag 4-link kits are built to put down serious power! Streamlining the fabrication process, these systems deliver professional-grade results and performance in a convenient, easy-to-order kit. They are designed for the hardcore, discerning, do-it-yourself racer looking for a no-compromise solution to take their vehicle to the next level in performance and adjustability. Offered with or without QA1's MOD Series 4-way adjustable coilover shocks, or 7 in. travel, track-proven single or double adjustable coilover shocks, each kit contains high-quality, MIG-weldable components to ensure a safe and properly engineered design that can be easily adapted into many drag racing setups. A components kit is also offered without coilover shocks and lateral locating device. Find convenience, safety, and performance all in a QA1 HD Pro rear drag 4-link system. Select the kit best suited to your drag race suspension setup. Features, benefits, and contents: * Drag race-style 4-link design: -- Performance and adjustability -- Wide range of instant center tuning and on-car adjustability -- Components can be cut to length -- 40 in. or narrower frame rails * 1/4 in. thick plates * 1 1/4 in. diameter, 22 in. length trailing arm tubes * Grade 8 hardware * QA1 chromoly rod ends * 40 in. shock crossmember and mounting tabs * 40 in. diagonal link kit with mounting brackets (not in components kit)
Not Yet Reviewed
$662.95
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$1,464.95
Order a set of Rhodes Race Cars Pro Series 4-link brackets to assist with your chassis and suspension project. The 1/4 in. thick mild steel welding tabs are designed to work with 3 in. axle tubes, unless otherwise noted. Pro Series 4-link housing brackets feature 5/8 holes for rod ends, and come in a set of four.
Not Yet Reviewed
$124.95
Rhodes Race Cars Pro Series ladder bar housing brackets are 360 degree chassis tabs designed for 3 in. axle tubes. Made from 3/16 in. thick mild steel with 3/4 in. bolt holes and 8 in. centered hole spacing, these rear-end brackets feature integrated shock mounts and wheelie bar mounts.
Not Yet Reviewed
$124.95
These Summit Racing™ frame rail and subframe connector Pro Packs will help to firm up your rear suspension for optimum traction control. They include a set of 2 in. x 3 in. steel formed rear frame rails and a set of weld-on subframe connectors. Put the maximum horsepower to the ground with one of these Summit Racing™ frame rail and subframe connector Pro Packs.
( 2 )
$560.98
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$574.98
Alston Racing standard Pro-Link 4-link suspension kits feature DOM tubing that gets internally threaded at both ends, and integral large wrench flats make adjustments incredibly easy. The link tubes get tapped to receive 5/8 in. bore x 3/4 in. shank rod ends (sold separately.) Alston Racing Pro-Link 4-link suspension kits provide the no-compromise, state-of-the-art components you need to win! Additional product features, items, and notes include: * 1.000 in. x 0.156 in. wall DOM tubing * Link tubes * Brackets and hardware * Welding is required
Not Yet Reviewed
$562.00
All-Pro Off-Road axle relocation plates can be used to center the axle, improve approach and departure angles, and to correct pinion angle. They are fabricated from 3/8 in. thick ASTM A36 steel to help you change the position of your axle.
Not Yet Reviewed
$47.22
JOES Racing Products Pro-Kart adapter plates make it simple to mount your 4-stroke or bigger 2-stroke engine to a JOES jackshaft support. These plates are machined from billet aluminum to ensure they stand up to a beating—and they have a variety of mounting options pre-drilled, allowing you to adjust the offset of your engine to aid in chassis tuning. The plates come with the correct mounting hardware to ensure a simple installation. Whether you're moving classes, or are just ready to change, there's no reason to replace everything. JOES Racing Products Pro-Kart adapter plates have you covered.
Not Yet Reviewed
$66.95
Reduce overall chassis flex on your musclecar with the addition of Heidts subframe connectors. They will improve your chassis's integrity and provide a solid foundation for the rest of your performance enhancements. Don't let your musclecar get out of shape. Keep it solid and fit for the winding road ahead with Heidts subframe connectors.
( 7 )
$322.00
On Sale
Summit Racing™ frame brace kits are designed to easily install and strengthen the factory frame of your classic car or truck. The benefit of stiffening the frame is improved handling and a tight predictable feel. Reinforce your chassis and create a custom pro touring style, corner carving ride with these Summit Racing™ frame brace kits. *Constructed From DOM tubing *Computer Designed, Machined, and Bent *Welding Required for most kits *Adjustable transmission crossmember for Manuals or overdrives included *Generous openings for Dual Exhaust pipe routing *Exhaust hangers provided
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$1,249.99
$199.99
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$1,299.98
Auto Metal Direct makes heavy-gauge steel rails designed to fit perfect and weld-in easily since they are superior reproductions of the factory original. Frame rails can become weakened by rust, attempts at pushing or towing, or damaged due to an accident, which can adversely affect other chassis components and make your vehicle unsafe to drive. Don't compromise your vehicle—or safety—with cheap replacement parts. For quality parts and components that you need for your classic vehicle, trust the pros at AMD.
( 3 )
$229.99
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$599.99
Replace your heavy stock K-member with one of these tubular QA1 Mustang K-members and, in addition to the weight savings, you'll get better steering geometry, less bump steer, reduced dive under braking, and quicker straight-line performance. Ideal for street performance, autocross, pro touring or drag racing, they easily bolt onto factory components without any wheel or tire fitment changes. Features and benefits include: * All mounting points are digitally-indexed from new factory K-members * Made from high-quality, American-made, high-strength, low-alloy steel (HSLA) steel * Weighs only 25 lbs.--over 50 percent lighter than stock K-members * Increased header and oil pan clearance for easier maintenance and installation * Modular design for versatility--bolt-in engine mounts can easily be swapped for future engine changes * Improved geometry--maintains optimum anti-dive and minimizes bump steer with selectable rack height and optimal control arm positioning * Ideal for Mustangs with a lowered stance * Retain the factory wheel base Note: For best results, QA1 control arms are strongly recommended
( 31 )
$459.95
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$567.95
Turn to the pros at Auto Metal Direct to provide the best OEM replacement parts on the market. Their rear frame rails are made from quality, heavy-gauge steel with a long-lasting, durable black powdercoated or EDP finish. Each piece is built to original OE specs and has been test-fitted by the restoration technicians at Auto Metal Direct. The frame rails are available in a variety of configurations for fitment on many classic vehicles. Order the model needed for your application.
( 14 )
$229.99
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$454.99
If you need threaded tube ends for chassis customization, Meziere Enterprises is the choice of professionals! These ready-to-weld accessories are raw machine-finished 4130 steel alloy, and will provide you with convenient threads to install various rods and bars. Offered in a wide range of tubing diameters, wall thicknesses, and thread combinations, Meziere tube ends deliver strength, consistency, and unmatched quality. Pro chassis builders use Meziere--shouldn't you?
( 11 )
$5.06
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$22.44
These Competition Engineering steel fenderwells are beaded at the seams to give them extra strength, and are made of 24-gauge steel. These fenderwells allow for plenty of clearance, even on 15 and 16 in. Pro Stock tires.
( 13 )
$153.99
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$167.99
AFCO Racing frame repair kits offer heavy-gauge steel rails that fit perfect and weld-in easily—since they are an exact reproduction of the factory original. Frame rails that are weakened by rust, damaged in an accident, or by attempts at pushing or towing can adversely affect your other chassis components and make your vehicle unsafe. Don't compromise your vehicle or safety with cheap replacements parts. Trust the pros at AFCO Racing.
Not Yet Reviewed
$229.99
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$359.99
These Competition Engineering aluminum fenderwells are beaded at the seams to give them extra strength, and are made of 0.032 in. aluminum. These fenderwells allow for plenty of clearance, even on 15 and 16 in. Pro Stock tires.
Not Yet Reviewed
$206.99
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$339.99
Roadster Shop SPEC chassis kits offer Roadster Shop quality at an affordable price point. The SPEC Series is an engineering-focused approach, using the latest in manufacturing technology, to build the lightest, strongest, and easiest-to-install complete chassis systems. These technologies have been used to streamline procedures resulting in lower cost and shorter lead times. The SPEC independent front suspension is engineered to deliver outstanding performance in a user friendly package. It features proprietary suspension geometry designed to provide the best balance of ride quality and performance in its class. Available as On-The-Shelf, pre-configured chassis or custom specifications to suit your needs. Features and benefits of Roadster Shop SPEC chassis kits include: * Full-chassis performance at a smaller component price * Unparalleled quality * Add the strength of a full frame with no floor modifications on most applications * CNC laser-cut, TIG-welded, and contoured "Laser Rails" frame rails * No kinks, bends, or stressed areas that are prone to flex like mandrel-bent tubing * Stronger, lighter, and more precise * CNC-located factory mounts built into the frame for easy, vehicle specific installation * Frame rails accommodate mini-tubs and wider wheels * Aggressive ride heights for the modern pro-touring look * Choice of coilover or air suspension for many applications * Air suspension chassis will lay the rockers on the ground (varies with tire size) * Truck rear frame rail kick ups engineered for minimal bed modifications while allowing rockers to lie on the ground * Crossmembers and chassis bracing allow 3 in. exhaust * Adjustable, drop-out transmission mounts (tunnel mods may be necessary for larger T-56 and 4L80 transmissions) * Vehicle specific body (cab and bed on trucks), bumper, and core support mounts * Single-adjustable billet coilovers * Power rack and pinion steering * Easy-to-adjust upper A-arm eccentric mounts for fast and accurate alignments * Wilwood Pro Spindles * Parallel 4-bar rear suspension * Ford 9 in. housing with 31 spline axles * Optional mounts, coilovers, sway bars, brake packages, and rear-end gearing available on custom-order chassis * 5 x 4.75 wheel bolt pattern * Frames are shipped as bare steel
( 14 )
$20,375.99
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$23,256.99
SPEC is an engineering focused approach using the latest in manufacturing technology to build the lightest, strongest, and easiest to install complete chassis system. These technologies have been used to streamline procedures, resulting in lower cost and shorter lead times. The SPEC independent front suspension is engineered to deliver outstanding performance wrapped up in user-friendly package. A completely new proprietary suspension geometry has been designed to provide the best balance of ride quality and performance in its class. Roadster Shop offers SPEC chassis kits for 1968-72 Chevelle models. Product benefits: * No kinks, bends or stressed areas that are prone to flex like mandrel bent tubing * Ability to contour to stock floors for a low-profile design. * Stronger, lighter, and more precise * CNC-located factory mounts built into the frame for easy, vehicle-specific installation * Frame rail designs to accommodate mini-tubs * Aggressive 7 in. ride height for the modern pro-touring look * 100 percent bolt-on application Standard features: * RS exclusive "Laser Rails" precision CNC laser-cut and contoured * Crossmembers and chassis bracing to allowing for 3 in. exhaust * Engine mounts for SBC, BBC, or optional LS & LT * Adjustable, drop out trans mount * Utlizes factory body, bumper, and core support mounts for a true bolt-on installation * SPEC IFS * RS SV by Fox fixed valve coilovers * Power rack and pinion steering * Easy-to-adjust upper A-arm eccentric mounts for fast and accurate alignments * Wilwood Pro Spindle * Parallel 4-Bar rear suspension * RS SV by Fox fixed valve coilovers * Ford 9 in. housing with 31 spline axles * Narrowed rear frame rails allow for wider rear tires when mini-tubbed
Not Yet Reviewed
$21,301.99
Rhodes Race Cars Radial Series 4-link chassis brackets are specifically designed for small tire radial cars. Made from 1/4 in. mild steel or 4130 chromoly, the brackets feature 1/2 in. holes for rod ends and integrated Pro-Jack mounts. Order a set of four for your vehicle.
Not Yet Reviewed
$174.95
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$299.95
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