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 Transmission Rack Base
Quarter-Max
$41.99.250" Mild Steel This bracket is a the replacement base for our transmission mounts. Sold EachQM-410086$41.99 -
QM Triangle Bracket
Quarter-Max
$3.56 - $5.69This triangle bracket is often used for wing and door strut mounts.QM-217201 | QM-217201A$3.56 - $5.69 -
$59.84 -
QM Universal 4-Link Rails
Quarter-Max
$348.58The QM Universal 4-Link Rails is the perfect way to narrow the rear of your chassis to accept extra-wide racing tires. Our frame rails are of universal design, making them adaptable to any car from...QM-301104$348.58 -
QM Universal Bracket, 4130, 1/8"Thick with 1/2" Hole
Quarter-Max
$3.09Universal bracketSpecifications:• Material: 4130• Thickness: 1/8"• Hole Size: 1/2"Sold each.QM-410090-2$3.09 -
QM Universal Bracket, 4130, 1/8"Thick with 3/8" Hole
Quarter-Max
$3.09Universal BracketSpecifications:• Material 4130• Thickness: 1/8"• Hole size 3/8"Sold each.QM-410090$3.09 -
QM Universal Bracket, Titanium, 1/8" Thick with 1/2" Hole
Quarter-Max
$8.99Universal BracketSpecifications:• Material: Titanium• Thickness: 1/8"• Hole Size: 1/2"Sold each.QM-410090-2T$8.99 -
QM Universal Ladder Bar Rails
Quarter-Max
$438.88The perfect way to narrow the rear of your chassis to accept extra-wide racing tires. Our frame rails are of universal design, making them adaptable to any car from Pro Street to Drag Race. The...QM-302108$438.88 -
QM Universal Long Tab, 3/8" Hole, Titanium
Quarter-Max
$24.99Upgrade your fabrication projects with our Universal Weld-In Titanium Tab. Designed for uncompromising strength and versatility, this tab is perfect for creating custom harness anchors or general...QM-411400-T$24.99 -
QM Universal LS Motorplate
Quarter-Max
$209.99This universal LS motorplate measures 14" x 36" and is designed to fit LS-1 through LS-9 engines. It is machined on the driver back side for clearance for aftermarket cylinder heads.Specifications:•...QM-213241$209.99 -
QM Universal Mounting Tab, .078" Thick, Titanium
Quarter-Max
$10.49These tabs are designed to be welded directly to titanium components on your chassis, providing durable, lightweight mounting points wherever needed. Perfect for high-performance...QM-411262T$10.49 -
QM Universal Mounting Tab, .090" Thick, Titanium
Quarter-Max
$12.59This Titanium Tunnel Shifter Mount Tab is a .090" titanium component designed for universal, weld-on use across your chassis. It provides a lightweight, high-strength mounting point, perfect for...QM-411259-T$12.59 -
QM Universal Mounting Tab, .125" Thick, 4130 (Pack of 10)
Quarter-Max
$20.89This .125" thick, 4130 header support mounting tab features a 6/32" hole. Weld these tabs to your chassis for added strength when mounting your headers. Specifications:• Material: 4130• Size: 1.187"...QM-411209$20.89 -
$1.99 -
QM Universal Tab
Quarter-Max
$4.19Universal TabSpecifications:• Thickness: .060• Material: 4130• Hole Size: 10/32Sold each.QM-411000$4.19 -
QM Universal Tall Deck BBC Motorplate
Quarter-Max
$203.69Universal Tall Deck Motor Plate Big Block Chevy Specifications• Made of 6061-T6 1/4" aluminum • 36-3/4" overall widthQM-213115$203.69 -
QM Upper Shock Crossmember
Quarter-Max
$59.84Our Upper Shock Crossmember mounts easily between the rear frame rails. It also provides added strength while allowing for accurate shock mounting.QM-201110$59.84 -
QM Upper Shock Mount Kit
Quarter-Max
$27.29Universal upper and lower coil over shock mounts. For applications that don't require adjustable mounts. Kit will mount one (1) pair of shocks.QM-201209$27.29 -
QM Upper Strut Cup Mount
Quarter-Max
$75.59Our new Cup Style Upper Strut Mounts feature a one-piece top and gusset for easier alignment and mounting. (welding required)QM-202109$75.59 -
QM Upper Strut Mount
Quarter-Max
$66.14The most popular way to mount upper struts. This style of Upper Strut Mount gives you excellent alignment and is the recommended mounting method for struts. 4130 .125 thick laser-cut brackets...QM-202110$66.14 -
$4.19 -
QM Valve Stack Mount
Quarter-Max
$125.99This bracket is designed to mount valve stack Part # 205110 off the rear of your Lenco transmission. Made of 1/4" aluminum.QM-205109-2$125.99 -
QM Vent Filter Mount
Quarter-Max
$7.34This laser cut bracket was designed to weld to the hoop of a front fuel cell to mount the fuel vent filter using bulkhead fittings and braided hose. Hole size .760"QM-410241$7.34 -
$5.66 -
QM W.O.T. Bracket
Quarter-Max
$5.24Material .040" 4130 Approx. size 1.50" x 2.00" This is a weld on bracket to bolt up the wide open throttle switch.QM-410536$5.24 -
$10.49 -
QM Weight Bar Kit
Quarter-Max
$101.84Weight Bar KitKit includes: 2 in. x 3 in. 14 in. long rectangular tube, weld-in bolt sleeves, end plates, cap and bung, bolts and nuts for mounting. Welding required.QM-219102$101.84 -
QM Weight Bar Kit, Welded
Quarter-Max
$188.99Weight Bar Kit, WeldedAdd weight nearly anywhere by filling this weight bar. Made from 2 in. x 3 in. rectangular tube, this 14 in. long weight bar comes completely welded with welded bung, aluminum...QM-219103$188.99 -
QM Weight Bar Tab, Long Wing, 4130
Quarter-Max
$14.69Weight Bar Tab, Long Wing, 4130This 4130 weight bar tab is designed with integrated gussets and is cut for use on 1-1/4 in. tubing; can be adapted for use with other diameters of tubing. Sold...QM-410040-1$14.69 -
QM Weight Bar Tab, Long Wing, 4130, Welded 1/2-13 Thread Nut
Quarter-Max
$20.99Weight Bar Tab, Long Wing, 4130, Welded 1/2-13 Thread NutThis weight bar tab is designed with integrated gussets and is cut for use on 1-1/4 in. tubing; can be adapted for use with other diameters of...QM-219113$20.99 -
QM Weight Bar Tab, Long Wing, 4130, Welded 1/2-20 Thread Nut
Quarter-Max
$20.99Weight Bar Tab, Long Wing, 4130, Welded 1/2-20 Thread NutThis weight bar tab is designed with integrated gussets and is cut for use on 1-1/4 in. tubing; can be adapted for use with other diameters of...QM-219109-1$20.99 -
QM Weight Bar Tab, Long, 4130
Quarter-Max
$9.44Weight Bar Tab, Long, 4130This weld-on tab offers you a quick and easy way to mount your ballast. Specifications:• Material: 4130• Thickness: 1/8 in.Sold individually.QM-410040$9.44 -
QM Weight Bar Tab, Long, 4130, Welded 1/2-13 Thread Nut
Quarter-Max
$12.59Weight Bar Tab, Long, 4130, Welded 1/2-13 Thread NutThis weld-on 4130 tab offers you a quick and easy way to mount your weight bars. It features a course thread nut which has been welded into place...QM-219111$12.59 -
QM Weight Bar Tab, Long, 4130, Welded 1/2-20 Thread Nut
Quarter-Max
$12.59Weight Bar Tab, Long, 4130, Welded 1/2-20 Thread NutThis weld-on 4130 tab offers you a quick and easy way to mount your weight bars. It features a nut which has been welded into place to allow for...QM-219108$12.59 -
QM Weight Bar Tab, Short Wing, 4130
Quarter-Max
$14.69Weight Bar Tab, Short Wing, 4130This 4130 weight bar tab is designed with integrated gussets and is cut for use on 1-1/4 in. tubing; can be adapted for use with other diameters of tubing. Sold...QM-410040-2$14.69 -
QM Weight Bar Tab, Short Wing, 4130, Welded 1/2-13 Thread Nut
Quarter-Max
$20.99Weight Bar Tab, Short Wing, 4130, Welded 1/2-13 Thread NutThis 4130 weight bar tab is designed with integrated gussets and is cut for use on 1-1/4 in. tubing; can be adapted for use with other...QM-219112$20.99 -
QM Weight Bar Tab, Short Wing, 4130, Welded 1/2-20 Thread Nut
Quarter-Max
$20.99Weight Bar Tab, Short Wing, 4130, Welded 1/2-20 Thread NutThis 4130 weight bar tab is designed with integrated gussets and is cut for use on 1-1/4 in. tubing; can be adapted for use with other...QM-219109$20.99 -
QM Weight Bar Tab, Short Wing, Titanium, Welded 1/2-13 Thread Nut
Quarter-Max
$52.49Weight Bar Tab, Short Wing, Titanium, Welded 1/2-13 Thread NutThis titanium weight bar tab is designed with integrated gussets and is cut for use on 1-1/4 in. tubing; can be adapted for use with...QM-219112-T$52.49 -
QM Weight Bar Tab, Short, 4130
Quarter-Max
$7.34Weight Bar Tab, Short, 4130This weld-on tab offers you a quick and easy way to mount your ballast. Specifications:• Material: 4130• Thickness: 1/8 in.• Hole Size: 1/2 in.Sold individually.QM-410134$7.34 -
QM Weight Bar Tab, Short, 4130, Welded 1/2-13 Thread Nut
Quarter-Max
$11.54Weight Bar Tab, Short, 4130, Welded 1/2-13 Thread NutThis weld-on 4130 tab offers you a quick and easy way to mount your weight bars. It features a course thread nut which has been welded into place...QM-219110$11.54