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Whether it has body-on-frame or unibody construction, your vehicle came from the factory with a chassis designed to flex. Engineers made it this way so that it could...
Whether it has body-on-frame or unibody construction, your vehicle came from the factory with a chassis designed to flex. Engineers made it this way so that it could absorb all the bumps of daily driving while keeping the driver and passengers safe and comfortable.
However, when you’re converting a street vehicle into a racing vehicle, that flexibility becomes a liability. The massive torque of drag racing engines can twist the frame so much that one of the front wheels can lift off the ground, causing a dangerous loss of control, and chassis flex also loosens your handling on road courses and autocross tracks.
Chassis...
Whether it has body-on-frame or unibody construction, your vehicle came from the factory with a chassis designed to flex. Engineers made it this way so that it could absorb all the bumps of daily driving while keeping the driver and passengers safe and comfortable.
However, when you’re converting a street vehicle into a racing vehicle, that flexibility becomes a liability. The massive torque of drag racing engines can twist the frame so much that one of the front wheels can lift off the ground, causing a dangerous loss of control, and chassis flex also loosens your handling on road courses and autocross tracks.
Chassis stiffening kits and components reinforce your chassis to make it more rigid. On a unibody vehicle, they usually include connectors to tie the front and rear subframes together. For body-on-frame vehicles, they include braces to tie the sides together, and/or boxing components to close up the channels in the frame rails. Additional components vary by application, manufacturer, and degree of stiffness required.
Summit Racing Equipment has been helping racers and hot rodders meet their performance goals since 1968, so we know all of the ins and outs of a chassis stiffening project. When you’re ready to hit the track, choose parts from brands you can trust, like Hotchkis Sport Suspension, RideTech, Heidts, UMI Performance, BMR Suspension, Stifflers Suspension, and more.
Frame Brace, Chassis Stiffening, Steel, Natural, 68-72 Chevelle, GM A-body, Buick, Chevy, Oldsmobile, Pontiac, Kit
Part Number: SUM-770800
Estimated Ship Date: Today
Estimated Ship Date: Today
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Frame Brace, Chassis Stiffening Kit, Steel, 63-72 C10, Short Bed, 115 in. Wheelbase., Bolt-In, Chevy, GMC, Kit
Part Number: SUM-770820
Estimated Ship Date: Today
Estimated Ship Date: Today
Frame Brace, Chassis Stiffening, Steel, Natural, 64-67 GM A-Body, Weld In, Kit
Part Number: SUM-770830
Estimated Ship Date: Today
Estimated Ship Date: Today
Frame Brace, Chassis Stiffening, Steel, Natural, Weld In, Tri-Five, Kit
Part Number: SUM-770810
Estimated Ship Date: Today
Estimated Ship Date: Today
Chassis Stiffeners, Frame Brace Kits, Frame Position, Steel, Natural, Designed for A 2-door A-body, Buick, Chevrolet, Oldsmobile, Pontiac, Kit
Part Number: SDP-30710
Estimated Ship Date: Today
Estimated Ship Date: Today
Subframe Braces, Rear IRS, Mustang, S550 Coupe Models, Chromoly, Silver Powdercoat, Chassis Stiffeners, Pair
Part Number: SDA-555-5754
Estimated Ship Date: Today
Estimated Ship Date: Today
Frame Brace, Chassis Stiffening Kit, Steel, 63-72 C10, Long Bed, 127 in. Wheelbase, Bolt-In, Chevy, GMC, Kit
Part Number: SUM-770821
Estimated Ship Date: Today
Estimated Ship Date: Today
Chassis Stiffeners, Front Reinforcement Braces, Front Lower Position, Steel, Black Powdercoated, Buick, Chevrolet, Oldsmobile, Pontiac, Each
Part Number: UPI-3053-B
Estimated Ship Date: Today
Estimated Ship Date: Today
Chassis Stiffener, Frame Brace, Steel, Natural, Buick, Chevy, Oldsmobile, Pontiac, 2-Door, A-Body, Kit
Part Number: SDP-30709
Estimated Ship Date: Today
Estimated Ship Date: Today
Chassis Stiffeners, Web Braces, Frame Position, Steel, Black Powdercoated, Ford, Set of 4
Part Number: IVP-WEB-M01
Estimated Ship Date: Today
Estimated Ship Date: Today
Subframe Braces, Rear IRS, Steel, Red Powdercoat, Ford, Kit
Part Number: BMR-CB762R
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Chassis Steering Brace, Front Lower, Steel, Black Powdercoated, Chevy, Pontiac, Each
Part Number: UPI-2030-R
Estimated Ship Date: Today
Estimated Ship Date: Today
Chassis Steering Brace, Front Lower, Steel, Black Powdercoated, Chevy, Pontiac, Each
Part Number: UPI-2030-B
Estimated Ship Date: Today
Estimated Ship Date: Today
Chassis Stiffeners, Front Reinforcement Braces, Front Lower Position, Steel, Red Powdercoated, Buick, Chevrolet, Oldsmobile, Pontiac, Each
Part Number: UPI-3053-R
Estimated Ship Date: Today
Estimated Ship Date: Today
FRAME BRACE KIT
Part Number: SDP-60710
Not Yet Reviewed
Estimated Ship Date: May 12, 2025 if ordered today
Estimated Ship Date: May 12, 2025 if ordered today
Frame Rail Brace, Steel, Black Powdercoated, Chevy, GMC, Pair
Part Number: ART-11369550
Estimated Ship Date: Today
Estimated Ship Date: Today
Strut Rod, Radiator Core Support Brace, Front Upper, Stainless Steel, Natural, Jeep CJ, Sold as Pair
Part Number: KTL-30517
Estimated Ship Date: Today
Estimated Ship Date: Today
Chassis Stiffener, FIT Stiffening System, Steel, Black Powdercoated, Mustang, Kit
Part Number: IVP-FIT-M01
Estimated Ship Date: Today
Estimated Ship Date: Today
Chassis Stiffeners, Stiffening Rails, Frame Position, Steel, Black Powdercoated, Ford, Pair
Part Number: IVP-SR-M02
Estimated Ship Date: Today
Estimated Ship Date: Today
Chassis Stiffener, Chassis Max X-Brace, Rear, Lower, with Hardware, Steel, Black Powdercoated, For Convertible Camaro/Firebird, Kit
Part Number: HSS-1404
Chassis Stiffener, Wonder Bar, Steel, Black, Bolt-On, Chevy, Pontiac, Each
Part Number: QA1-52122
Not Yet Reviewed
Estimated Ship Date: Jun 9, 2025 if ordered today
Estimated Ship Date: Jun 9, 2025 if ordered today
Chassis Stiffener, FIT Stiffening System, Steel, Black Powdercoated, Mustang, Kit
Part Number: IVP-FIT-M02
Estimated Ship Date: Today
Estimated Ship Date: Today
Chassis Stiffeners, Mustang FIT System, Frame Position, Steel, Black Powdercoated, Ford, Kit
Part Number: IVP-FIT-M03
Not Yet Reviewed
Estimated Ship Date: May 27, 2025 if ordered today
Estimated Ship Date: May 27, 2025 if ordered today
Chassis X-Brace, Rear, Chromoly, Silver Powdercoated, Requires Rear Seat Removal, Ford Mustang, Each
Part Number: SDA-555-5085
Estimated Ship Date: May 27, 2025 if ordered today
Estimated Ship Date: May 27, 2025 if ordered today
Chassis brace, front reinforcement brace
Part Number: BMR-CB410H
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
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