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 Aluminum Black Cap & Aluminum Bung
Quarter-Max
$39.99Aluminum Black Cap with QM Logo with Aluminum Bung with o-ring seal. Most commonly used for aluminum fuel tanks.Aluminum bung with internal threads.Specifications:• Cap Material: Aluminum• Cap Color:...QM-219311-1$39.99 -
QM Aluminum Black Cap & Steel Bung
Quarter-Max
$81.89Aluminum Black Cap with Steel Bung with o-ring seal. Most commonly used on rear end housings.Steel bung with internal threads.Specifications:• Cap Material: Aluminum• Cap Color: Black• Cap Style:...QM-219304-1$81.89 -
QM Aluminum Cap & Aluminum Bung
Quarter-Max
$26.24Aluminum Cap & Aluminum BungSpecifications:• Cap Material: Aluminum• Bung Material: Aluminum• Bung OD: 1.7000 in.• Bung Step OD: 1.469 in.QM-219301-1$26.24 -
QM Aluminum Cap & Steel Bung
Quarter-Max
$20.99Aluminum Cap & Steel BungSpecifications:• Cap Material: Aluminum• Bung Material: Steel• Bung OD: 1-5/8 in.• Bung Step OD: 1.475 in.QM-219301$20.99 -
QM Aluminum Clevis .625
Quarter-Max
$54.59This clevis is utilized in our Pro Wishbone and Heavy Duty Diagonal Links, and is designed to be attached to the the 4-link brackets with a 1/2” diameter NAS 4-link bolt. Features a machined dowel...QM-201199-1$54.59 -
QM Aluminum Clevis .800
Quarter-Max
$54.59This clevis is utilized in our Pro Wishbone and Heavy Duty Diagonal Links, and is designed to be attached to the the 4-link brackets with a 1/2” diameter NAS 4-link bolt. Features a machined dowel...QM-201199$54.59 -
$5.99 -
QM Anti-Roll Bar Chassis Bracket
Quarter-Max
$5.29Anti-roll bar chassis bracket .125 thick 4130 Hole size 1/4"QM-410084$5.29 -
QM Anti-Roll Bar Link, Metallic Grey
Quarter-Max
$73.49The Quarter-Max Anti-Roll Bar Link includes everything you need to custom-fabricate and install robust, precise end links for your anti-roll bar setup. Specifications:• Tube Adapter Sizes: 7/16-20"...QM-0319$73.49 -
QM Anti-Roll Bar Mount
Quarter-Max
$3.99Anti-roll arm mount bracket Material 0.125" 4130 Hole sizes 1/4"QM-410144$3.99 -
QM Anti-Roll Bar Mount (Double Shear)
Quarter-Max
$89.99Anti-Roll Bar Mount with our double shear design for superior strength, billet shaft mounts has bronze bushing installed with grease zerks for smooth and controlled body roll. Made of 4130 Chromoly.QM-420121-3$89.99 -
QM Anti-Roll Bar Tab
Quarter-Max
$2.99Anti-Roll Bar TabSpecifications:• Material: Steel• Thickness: 1/8 in.• Hole size: 3/8 in.Sold individually.QM-217088$2.99 -
$4.99 -
QM Anti-Roll Pro Housing Bracket
Quarter-Max
$5.29Anti-roll Pro Housing bracket Material 0.125" 4130 Hole size .375"QM-410061$5.29 -
QM B & M Pro Bandit Shifter Mount
Quarter-Max
$9.99This bracket bolts directly to the B&M Pro Bandit Shifter and will bolt to our automatic shifter mount. Sold each .90" Thick. Made of 4130QM-410777$9.99 -
$5.24 -
QM BB Ford Hemi Motorplate
Quarter-Max
$203.69Big Block Ford Hemi Pro Stock Motorplate Specifications• Made of 6061-T6 1/4" aluminum • 32" overall width • 26-1/4" notch width Note: This motorplate requires qty-4 #217065 press-in bushings...QM-213110$203.69 -
QM BBC Motorplate
Quarter-Max
$203.69BBC Motorplate Specifications• Made of 6061-T6 1/4" aluminum • 36-3/4" overall widthQM-213100$203.69 -
QM Bellcrank Tab
Quarter-Max
$3.56Bellcrank TabSpecifications:• Material: Steel• Thickness: 1/8 in.• Hole size: 3/8 in.Sold individually.QM-217028B$3.56 -
QM Big Block Chevy Lightweight Midplate
Quarter-Max
$369.99Big Block Chevy Lightweight MidplateSpecifications:• Material: 6061-T6 aluminum• Thickness: 1/4"• Size: 24" x 24"• Lightweight version weighs approximately 1.35 lbs less than our standard Big Block...QM-213108$369.99 -
QM Big Block Chevy Midplate, 14-1/2" Center Hole
Quarter-Max
$215.24Big Block Chevy MidplateSpecifications:• Material: 6061-T6 aluminum• Thickness: 1/4"• Size: 24" x 24"• Center hole size: 14-1/2"QM-213109-3$215.24 -
QM Big Block Chevy Midplate, 7" Center Hole
Quarter-Max
$179.99Big Block Chevy MidplateSpecifications:• Material: 6061-T6 aluminum• Thickness: 1/4"• Size: 24" x 24"• Center hole size: 7"QM-213109$179.99 -
QM Big Block Chevy Midplate, Automatic
Quarter-Max
$227.84Big Block Chevy MidplateSpecifications:• Material: 6061-T6 aluminum• Thickness: 1/4"• BBC• AutomaticQM-213212$227.84 -
QM Big Block Chevy Pro Mod Double Frame Rail Lightened Midplate
Quarter-Max
$399.99Big Block Chevy Pro Mod Double Frame Rail Lightened MidplateSpecifications:• Material: 6061-T6 aluminum• Thickness: 1/4"• BBC• Pro Mod Double Frame RailQM-213220-2$399.99 -
QM Big Block Chevy Pro Mod Double Frame Rail Lightened Midplate for Automatic
Quarter-Max
$399.99Big Block Chevy Pro Mod Double Frame Rail Lightened Midplate for AutomaticSpecifications:• Material: 6061-T6 aluminum• Thickness: 1/4"• BBC• Pro Mod Double Frame Rail• AutomaticQM-213220-3$399.99 -
QM Big Block Chevy Pro Mod Double Frame Rail Lightweight Midplate
Quarter-Max
$399.99Big Block Chevy Pro Mod Double Frame Rail Lightweight MidplateSpecifications:• Material: 6061-T6 aluminum• Thickness: 1/4"• BBC• Pro Mod Double Frame Rail• Ultra lightweight midplate weighs 2.25lbs...QM-213220-1$399.99 -
QM Big Block Chevy Pro Mod Double Frame Rail Midplate
Quarter-Max
$199.99Big Block Chevy Pro Mod Double Frame Rail MidplateSpecifications:• Material: 6061-T6 aluminum• Thickness: 1/4"• BBC• Pro Mod Double Frame RailQM-213220$199.99 -
QM Big Block Chevy Pro Mod Double Frame Rail Midplate, 14-1/2" Center Hole
Quarter-Max
$249.99Big Block Chevy Pro Mod double frame rail midplate Specifications:• Material: 6061-T6 aluminum• Thickness: 1/4"• Center hole size: 14-1/2"QM-213220-4$249.99 -
QM Big Block Chrysler B1 Wedge Midplate, 14-1/2" Center Hole
Quarter-Max
$204.74Big block chrysler B1 wedge midplate Specifications:• Material: 6061-T6 aluminum• Thickness: 1/4"• Size: 24" x 24"• Center hole size: 14-1/2"QM-213222-1$204.74 -
On Sale
QM Big Block Ford 460/429 Midplate
Quarter-Max
Now: $136.49Was: $225.74Big Block Ford 460/429 MidplateSpecifications:• Material: 6061-T6 aluminum• Thickness: 1/4"• Frame Rail: 20.375"QM-213209Now: $136.49Was: $225.74 -
QM Big Block Ford Boss 429/460 Midplate
Quarter-Max
$225.74Big Block Ford Boss 429/460 MidplateSpecifications:• Material: 6061-T6 aluminum• Thickness: 1/4"• Size: 24" x 24"• 7/16" holesQM-213216$225.74 -
QM Billet Adjustable Double Shear Shock Mount Kit, 3/4" Wide
Quarter-Max
$408.44Easily mount your coil-over shocks with Quarter-Max Chassis & Racing Components’ high quality Billet Adjustable Double Shear Shock Mount Kit. For customers that are not exactly sure of the final...QM-300012$408.44 -
QM Billet Adjustable Double Shear Shock Mounts, 3/4" Wide
Quarter-Max
$299.24Easily mount your coil-over shocks with our billet adjustable double shear shock mounts, which offer a wide range of adjustability over a fixed shock mount location.The double shear shock mount...QM-300002$299.24 -
QM Billet Adjustable Double Shear Shock Mounts, 3/4" Wide, 1" Offset, Aluminum
Quarter-Max
$514.49Easily mount your coil-over shocks with our billet adjustable double shear shock mounts, which offer a wide range of adjustability over a fixed shock mount location. These offset shock mounts are...QM-300004$514.49 -
QM Billet Adjustable Double Shear Shock Mounts, 3/4" Wide, 1" Offset, Steel
Quarter-Max
$699.99Easily mount your coil-over shocks with our billet adjustable double shear shock mounts, which offer a wide range of adjustability over a fixed shock mount location. These offset shock mounts are...QM-300003$699.99 -
QM Billet Adjustable Threaded Shock Mount Kit, 1-1/2" Wide
Quarter-Max
$235.19Easily mount your coil-over shocks with Quarter-Max Chassis & Racing Components’ high quality Billet Adjustable Threaded Shock Mount Kit. For customers that are not exactly sure of the final ride...QM-300011$235.19 -
QM Billet Adjustable Threaded Shock Mount Kit, 3/4" Wide
Quarter-Max
$235.19Easily mount your coil-over shocks with Quarter-Max Chassis & Racing Components’ high quality Billet Adjustable Threaded Shock Mount Kit. For customers that are not exactly sure of the final ride...QM-300010$235.19 -
QM Billet Adjustable Threaded Shock Mounts, 1-1/2" Wide
Quarter-Max
$125.99Easily mount your coil-over shocks with our billet adjustable shock mounts, which offer a wide range of adjustability over a fixed shock mount location.The billet shock mount utilizes 3/8" grade 8...QM-300001$125.99 -
QM Billet Adjustable Threaded Shock Mounts, 3/4" Wide
Quarter-Max
$125.99Easily mount your coil-over shocks with our billet adjustable shock mounts, which offer a wide range of adjustability over a fixed shock mount location.The billet shock mount utilizes 3/8" grade 8...QM-300000$125.99 -
QM Billet Bottle Clamp Mounting Bracket
Quarter-Max
$8.39Weld directly to your chassis to mount our billet bottle clamp. Specifications:• Thickness: .090 in.• Material: 4130Sold individually.QM-411044$8.39