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 12" x 36" BBC Motorplate with Water Pump Holes
Quarter-Max
$159.5912" x 36" BBC Motorplate with Water Pump Holes Specifications• Made of 6061-T6 1/4" aluminum • 12" overall height • 36" overall widthQM-213111-1$159.59 -
QM 12" x 36" SBC Motorplate
Quarter-Max
$143.8412" x 36" SBC Motorplate Specifications:• Made of 6061-T6 1/4" aluminum • 12" overall height • 36" overall widthQM-213107$143.84 -
QM 12"x36" DRCE Motorplate
Quarter-Max
$139.9912"x36" DRCE Motorplate Specifications• Made of 6061-T6 1/4" aluminum • 12" overall height • 36" overall widthQM-213103-1$139.99 -
QM 125 Amp Master Disconnect Switch Bracket
Quarter-Max
$10.49For use with 214118 which can be ordered here.QM-410052$10.49 -
QM 1947-1953 Chevy/GMC Truck Rear End Frame Box-In Kit
Quarter-Max
$103.94This kit includes qty-4 pieces of 11 gauge mild steel plate cut on a water jet to box in the inside rear frame of your 1947-1953 Chevy or GMC truck. Boxing in your rear frame will make your frame...QM-219609$103.94 -
QM 2" Air Bottle Mount Base
Quarter-Max
$9.44This is the support bracket in 2-1/2lb air bottle mount kit is made of 0.125" thick 4130. Must be rolled to fit air bottle. Hole size 1"QM-410114$9.44 -
QM 2" Anti-Roll Bar Hex Link
Quarter-Max
$19.99• 2" Long• RH & LH threads• CNC machined from hex bar stock• Used on our cars that we build in-house• Zinc platedTypically used for clutch linkages and anti-roll bar links.QM-420360-P$19.99 -
QM 2" Bottle Mount
Quarter-Max
$68.24This handy mount kits can be used for 10 oz CO2 bottles. Kit includes 2" base cup, clamp, and a 2" bottle mount. Welding required.QM-219512$68.24 -
QM 2" x 3" Dropped Crossmember
Quarter-Max
$90.29Fabricating a rear frame on a Pro Street or Drag Race car is easier and looks more professional with a 2" x 3" dropped crossmember. The sturdy 2" x 3" .083” steel crossmember is mandrel bent on CNC...QM-302105$90.29 -
QM 2" x 3" Dropped Crossmember with Ladder Bar Brackets
Quarter-Max
$138.59Fabricating a rear frame on a Pro Street or Drag Race car is easier and looks more professional with a 2" x 3" dropped crossmember. The sturdy 2" x 3" .083” steel crossmember is mandrel bent on CNC...QM-302109$138.59 -
QM 2.25 lb Lead Puck
Quarter-Max
$16.79Need to move just a little weight around? Use our 2.25 lb lead pucks! They have a 1/2" hole drilled through the center for easy mounting and removal.QM-219105$16.79 -
$16.79 -
QM 3" Spring Perch
Quarter-Max
$12.59Welds to 3" diameter rear end housing and works with most leaf springs. Sold each.QM-300042$12.59 -
$6.29 -
QM 3/16" Chassis Tab
Quarter-Max
$5.24Universal Chassis Tab, 3/16" Specifications: • Hole Size: 1/2" • Material: 4130• Hight: .1-7/8″ • Width: 1-3/4″ • From Center of Hole to Bottom of Tab: 1-5/16″Sold individually.QM-217026A$5.24 -
QM 3/16" Chassis Tab with 1/2" Hole
Quarter-Max
$3.29Material .188" CRMS Fits 1-1/2" tube Hole size 1/2"QM-217025A$3.29 -
QM 3/4" Extreme Ladder Bar Adjusters, 4130
Quarter-Max
$53.54Convert your standard ladder bars into adjustable ladder bars or replace old adjusters with our ladder bar adjuster kit. Our adjusters feature wrench flats for easy adjustment and come with jam nut...QM-302121$53.54 -
QM 3/4" Ladder Bar Adjusters, 4130
Quarter-Max
$44.09Convert your standard ladder bars into adjustable ladder bars or replace old adjusters with our ladder bar adjuster kit. Our adjusters feature wrench flats for easy adjustment and come with jam nut...QM-302121-3$44.09 -
Out of stock
QM 3/4" Ladder Bar Adjusters, Mild Steel
Quarter-Max
$36.74Convert your standard ladder bars into adjustable ladder bars or replace old adjusters with our ladder bar adjuster kit. Our adjusters feature wrench flats for easy adjustment and come with jam nut...QM-302121-1$36.74 -
$3.56 -
QM 3/8-16 Threaded Hardened Insert Midplate Clinch Nut
Quarter-Max
$8.39These nuts are made to be pressed into those hard to reach areas at the bottom of the midplate or blocksaver. This allows for easy bolting of the bellhousing.Sold individually.QM-213200$8.39 -
QM 4" Bottle Mount Kit
Quarter-Max
$72.44Our botte mount kit can be used for either fire suppression or CO2 bottles. Kit includes 4" base cup, clamp, and a 4" bottle mount. Welding required.QM-219510$72.44 -
QM 4" Lightweight Bottle Mount Kit
Quarter-Max
$125.99Our lightweight bottle mount kit can be used for either fire suppression or CO2 bottles. Kit includes 4" base cup, clamp, 4" bottle mount, and 4 screws to mount the base. Welding required.QM-219510-1$125.99 -
QM 4-3/8" Bottle Mount Kit
Quarter-Max
$75.59This bottle mount kit can be used for either fire suppression or CO2 bottles. Kit includes 4-3/8" base cup, clamp, and a 4-3/8" 4130 Chromoly bottle mount. Welding required.QM-219511$75.59 -
QM 4-3/8" Lightweight Bottle Mount Kit
Quarter-Max
$130.19This lightweight bottle mount kit can be used for either fire suppression or CO2 bottles. Kit includes 4-3/8" base cup, clamp, 4-3/8" 4130 bottle mount, & 4 -32 screws to mount the base. Welding...QM-219511-1$130.19 -
QM 4-Link Bar Kit, 1-5/8 in. OD x .120 in. with 7/8-14 Tube Adapters
Quarter-Max
$417.894-Link Bar Kit, 1-5/8 in. OD x .120 in. with 7/8-14 Tube AdaptersKit includes:• Qty-4 1-5/8 in. OD 4130 bars, 18 in. long x .120 in. wall - Material 4130• Qty-4 7/8-14 LH 4130 tube adapters•...QM-201202-4$417.89 -
QM 4-Link Kit with Billet Adjustable Shock Mounts
Quarter-Max
$676.99 - $948.99The Quarter-Max 4-Link Kit with Billet Adjustable Shock Mounts can be used in most sportsman and street/strip applications.This 4-link kit features our billet adjustable shock mounts, which offer a...QM-30003x$676.99 - $948.99 -
QM 4-Link Round Tube Back-Half Kit
Quarter-Max
$1,126.64Our 4130 round tube 4-link back half kit includes 1-5/8 in. OD x .083 in. W frame rails, 1-3/4 in. OD x .095 in. front crossmember, upper shock mount, and cross bracing. Comes with 1/4 in. pro series...QM-302116$1,126.64 -
QM 4-Link Round Tube Frame Rails, 1-5/8 in. OD x .083 in. W 4130, with Welded Chassis Brackets
Quarter-Max
$776.984-Link Round Tube Frame Rails, 1-5/8 in. OD x .083 in. W 4130 with Welded Chassis BracketsSold in pairs. Brackets are welded to the frame rails. This item will have a discounted oversize fee of $80...QM-301105-1$776.98 -
QM 4-Link Round Tube Welded Back-Half
Quarter-Max
This item ships truck freight only. Please call 309-343-7575 to order.Our 4130 round tube 4-link back-half includes 1-5/8" .083" frame rails, 1-3/4" .095" front crossmember, upper shock mount, and...QM-302114 -
QM 4.5" Air Bottle Clamp Bracket
Quarter-Max
$9.44This is the base to the air bottle mount kit 0.060" thick 4130. Inside Diameter: 2.95" Outside Diameter: 4.45QM-410039$9.44 -
QM 4.5" Air Bottle Mount Base
Quarter-Max
$5.99This is the base to the 2.0" air bottle Mount 0.060" thick 4130. Hole size .290"QM-410115$5.99 -
QM 4130 Unwelded 25.1H 3/4 Chassis Kit
Quarter-Max
This item ships by truck freight only. Please call 309-343-7575 to order.Pro Stock Style Moly Chassis firewall back. This is the perfect kit for classes that are required to run stock front...QM-199208 -
QM 4130 Unwelded 25.1H Pro Mod Double-Rail Chassis Kit
Quarter-Max
This item ships by truck freight only. Please call 309-343-7575 to order.Our double rail chassis kit includes all the tubing you need to build a top notch chassis with much of the required bending...QM-199205 -
QM 4130 Unwelded 25.1H Pro Stock Truck Chassis Kit
Quarter-Max
This item ships by truck freight only. Please call 309-343-7575 to order.So you want to build a truck? We have just the chassis kit for you. These kits are based off the now defunct Pro Stock Truck...QM-199203 -
QM 4130 Unwelded 25.1H Pro Stock/Top Sportsman Chassis Kit
Quarter-Max
This item ships by truck freight only. Please call 309-343-7575 to order.The Quarter-Max 25.1H 4130 chassis kits are a great way to get your project started in the right direction. Each tube is...QM-199201 -
QM 4130 Unwelded 25.2C Chassis Kit
Quarter-Max
This item ships by truck freight only. Please call 309-343-7575 to order.Chromoly chassis for 10.5 Outlaw Cars. 25.2C certifiable. Includes brackets & funny car cage.SFI SPECIFICATION 25.2CFull...QM-199209 -
QM 4130 Unwelded Funny Car Cage Kit
Quarter-Max
$386.39Install a funny car cage in your project car using our tubing and print kit. Tubes are individually numbered to correspond to the numbers on the print. Some modifications to tube bends may be...QM-199207$386.39 -
QM 4130 Unwelded Sportsman Chassis Kit
Quarter-Max
This item ships by truck freight only. Please call 309-343-7575 to order.You won't find a more thought out chassis kit anywhere! You get a bound blueprint book with 10 detailed color views for your...QM-199206 -
QM 5 lb Lead Puck
Quarter-Max
$26.24Need to move just a little weight around? Use our 5 lb lead pucks! They have a 1/2" hole drilled through the center for easy mounting and removal.QM-219104$26.24