Chassis & Suspension
Shop Quarter-Max for the industry's best drag racing chassis and suspension components. We manufacture and stock everything you need to build or upgrade your race car, including 4-link suspensions, anti-roll bars, coilover shocks, drag struts, rod ends, and weld-on chassis brackets. Whether you are building a Pro Mod or a bracket car, our proven suspension parts are designed to help you hook hard and put the power to the ground.
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4-Links & Components
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Anti-Roll Bars
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Back-Halfs
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Ballast & Weight Bars
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Bottle Mounts & Billet Clamps
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Brackets, Gussets & Tabs
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Drag Race Chassis Kits
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Engine Mounting
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Ladder Bars & Components
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Rear End Housings & Components
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Street Chassis & Front Clips
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Struts & Components
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Shocks, Springs & Accessories
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Wheelie Bars & Components
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Wishbones & Diagonal Links
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QM Clamp-On Helmet Hook, 1.5 in. Tube Size, Black Anodized
Quarter-Max
$25.19Hang your helmet with one of our Quarter-Max helmet hooks. Made from aluminum, the hook mounts on your roll cage so you can choose the most convenient place to hang your helmet.Specifications:•...QM-219543$25.19 -
QM Clamp-On Helmet Hook, 1.625 in. Tube Size, Black Anodized
Quarter-Max
$25.19Hang your helmet with one of our Quarter-Max helmet hooks. Made from aluminum, the hook mounts on your roll cage so you can choose the most convenient place to hang your helmet.Specifications:•...QM-219544$25.19 -
QM Clamp-On Helmet Hook, 1.75 in. Tube Size, Black Anodized
Quarter-Max
$25.19Hang your helmet with one of our Quarter-Max helmet hooks. Made from aluminum, the hook mounts on your roll cage so you can choose the most convenient place to hang your helmet.Specifications:•...QM-219545$25.19 -
QM Clamp-On Weight Puck Mount
Quarter-Max
$66.14You can use this billet aluminum mount to clamp ballast to your chassis or roll cage. They are CNC machined from 6061-T6 and have a 1/2”-13 threaded hole for attaching ballast. Sold each.QM-219505-x$66.14 -
QM Clevis 5/8" Hole
Quarter-Max
$12.59Mild steel clevis .190" thick 5/8" hole at bottom (2) 1/2" hole at top.QM-217105B$12.59 -
QM Clutch & Gas Pedal Stop Pad
Quarter-Max
$3.14Crafted from 4130, this stop pad offers exceptional durability and a reliable, positive feel for your clutch and gas pedals. Known for its impressive strength-to-weight ratio and outstanding...QM-411199$3.14 -
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$11.54 -
QM Clutch Light Bolt In Bracket
Quarter-Max
$6.29Use this bracket to mount your clutch light.QM-410601$6.29 -
QM Clutch Pedal Pad, 4130
Quarter-Max
$12.59Looking for the perfect finishing touch for your custom pedal assembly? This Clutch Pedal Pad is designed to provide a sleek, professional look. It's built for a secure and permanent fit, ready to...QM-410048-3$12.59 -
$5.76 -
$16.79 -
QM Clutch Switch Mount
Quarter-Max
$29.39Our Clutch Switch Mount is now easier to install than ever! The new clutch switch mount is laser cut from mild steel and bent to mount a limit switch behind your clutch pedal. Simply bolts to your...QM-214119$29.39 -
QM Control Arms for Long-Travel Struts, Titanium
Quarter-Max
$1,459.99Quarter-Max Racing's new custom-length control arms for long-travel struts feature a robust and lightweight construction engineered to perform at the highest levels of motorsport. By upgrading to our...QM-202116-TWU$1,459.99 -
$8.39 -
QM Dodge Hemi Double Frame Rail Midplate
Quarter-Max
$227.84Dodge Hemi Double Frame Rail MidplateSpecifications:• Material: 6061-T6 aluminum• Thickness: 1/4"QM-213207-1$227.84 -
QM Dodge Hemi Midplate
Quarter-Max
$225.74Dodge Hemi MidplateSpecifications:• Material: 6061-T6 aluminum• Thickness: 1/4"• Frame rail: 20.375"• NHRA Pro StockQM-213207$225.74 -
QM Double Adjustable Ladder Bars
Quarter-Max
$382.19 - $443.99All of our Quarter-Max ladder bars feature an exclusive Quarter-Max design to eliminate the binding caused by adjustment of the heims. Our bars are designed to always have the heims parallel to each...QM-302102-x$382.19 - $443.99 -
QM Double Ended Screw-In Stud, 7/16"-7/8" SAE X 7/16"-3/4" USS X 2" Overall
Quarter-Max
$3.99Built for high-performance automotive and racing applications, this Quarter-Max double-ended stud delivers uncompromising strength. Forged in the USA from medium carbon heat-treated alloy steel, it...QM-600079$3.99 -
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QM DRCE Motorplate
Quarter-Max
$203.69DRCE Motorplate Specifications• Made of 6061-T6 1/4" aluminum • 34-1/2" overall width • 28-5/8" notch width Note: This motorplate requires qty-4 #217065 press-in bushings. Sold separately.QM-213103$203.69 -
QM Driveshaft Loop Mount Tab
Quarter-Max
$4.99Driveshaft Loop Mount TabSpecifications:• Thickness: .187 in.• Material: 4130• Hole Size: .375 in.Sold individually.QM-410098$4.99 -
QM Dropped Down Liberty Cross Bracket
Quarter-Max
$19.99This bracket is part of the Liberty Transmission Mount Kit. You can buy the items separately and weld them yourself. The kit makes removing and installing Liberty transmissions. Holes are 1.5000"...QM-410565$19.99 -
QM Dropped Tubular Crossmember, 1-3/4 in. OD, 3 in. Drop, 4130
Quarter-Max
$178.49Dropped Tubular Crossmember, 1-3/4 in. OD, 3 in. Drop, 4130Specifications:• 3 in. drop center• Width: 54-1/8 in.• Material: 4130• Diameter: 1-3/4 in. OD• Wall thickness: .095 in. wallAlso available...QM-302107$178.49 -
QM Dropped Tubular Crossmember, 1-3/4 in. OD, 3 in. Drop, Mild Steel
Quarter-Max
$94.49Dropped Tubular Crossmember, 1-3/4 in. OD, 3 in. Drop, Mild SteelSpecifications:• 3 in. drop center• Width: 54-1/8 in.• Material: Mild steel• Diameter: 1-3/4 in. OD• Wall thickness: .134 in. wallAlso...QM-302106$94.49 -
QM Dropped Tubular Crossmember, 1-3/4 in. OD, 3 in. Drop, Mild Steel, with Brackets
Quarter-Max
$104.99Our dropped tubular crossmember is the economical solution to add a crossmember and front ladder bar brackets to your project.Dropped Tubular Crossmember with Brackets, 1-3/4 in. OD, 3 in. Drop, Mild...QM-302110$104.99 -
QM Dry Chemical Fire Bottle
Quarter-Max
$9.44This is the base for your dry chemical fire bottle kit 0.063" thick 4130.QM-410342$9.44 -
QM Dual Parachute Cable Tab for Lightweight Cables
Quarter-Max
$6.29Dual Parachute Cable Tab for Lightweight CablesSpecifications:• Material: 4130• Thickness: .062 in.QM-410778$6.29 -
QM Engine Diaper Bracket
Quarter-Max
$10.49Use this bracket to secure your engine diaper to the motor.QM-410096$10.49 -
$8.39 -
QM Extreme Pro Series 2" Splined Anti-Roll Bar Kit, Universal
Quarter-Max
$834.74Our Extreme Pro Series 2” Splined Anti-Roll Bar Kit is the most universal heavy duty splined anti-roll bar kit available on the market today! Engineered to provide superior strength for high...QM-201194 | QM-201194-1$834.74 -
QM Extreme Pro Series 4-Link Chassis Brackets, 4130
Quarter-Max
$361.16 - $585.99Quarter-Max's Extreme Pro Series 4-link chassis brackets are manufactured in-house to high quality specifications with precise hole locations and smooth profiles. With 16 holes of adjustment, these...QM-410017-2 | QM-410017-3$361.16 - $585.99 -
QM Extreme Pro Series 4-Link Housing Brackets
Quarter-Max
$411.56Quarter-Max's Extreme Pro Series 4-link housing brackets are manufactured in-house to high quality specifications with precise hole locations and smooth profiles. With 19 holes of adjustment, these...QM-410019-11 | QM-410019-11D$411.56 -
QM Extreme Pro Series 4-Link Housing Brackets for Billet Adjustable Shock Mounts
Quarter-Max
$432.56 - $634.99Quarter-Max's Extreme Pro Series Four Link housing brackets are manufactured in-house to high quality specifications with precise hole locations and smooth profiles. With 19 holes of adjustment,...QM-410019-11-AS | QM-410019-11D-AS$432.56 - $634.99 -
QM Extreme Pro Series 4-Link Kit
Quarter-Max
$1,699.99 - $1,799.99Quarter-Max's Extreme Pro Series 4-Link Kit offers more strength and adjustability than our standard Pro Series kit. For extra strength, this kit features our high quality 1-1/2 in.x.095 in. 4130 Pro...QM-201214 | QM-201214-1$1,699.99 - $1,799.99