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Car & Truck Chassis & Suspension Parts
Welcome to the home of great handling and ride quality! We stock a huge assortment of car and truck chassis and suspension parts like shocks, struts, and coil and leaf...
Welcome to the home of great handling and ride quality! We stock a huge assortment of car and truck chassis and suspension parts like shocks, struts, and coil and leaf springs, so whether you want a smooth street ride, responsive race handling, or rugged off-road control, you can find all the parts you need for your suspension upgrades here. We have complete lowering kits for a road-hugging sport stance, and lift kits to accommodate massive tires and greater suspension travel. Summit also has steering components, sway bars, frame rails and connectors, tie rods, wheelie bars, and wheel tubs, plus engine, transmission, and...
Welcome to the home of great handling and ride quality! We stock a huge assortment of car and truck chassis and suspension parts like shocks, struts, and coil and leaf springs, so whether you want a smooth street ride, responsive race handling, or rugged off-road control, you can find all the parts you need for your suspension upgrades here. We have complete lowering kits for a road-hugging sport stance, and lift kits to accommodate massive tires and greater suspension travel. Summit also has steering components, sway bars, frame rails and connectors, tie rods, wheelie bars, and wheel tubs, plus engine, transmission, and suspension mounts and bushings.
Showing In Stock Items. Show All 45 Items.
On Sale
Summit Racing™ Dual-Exhaust Transmission Crossmembers
Summit Racing™ steel transmission crossmembers allow you to run a true dual-exhaust system with most popular GM transmissions. They have a patented double-hump design, so you don't have to compromise ground clearance by running pipes under the crossmember, and they're a complete bolt-on deal—no custom fabricating or realignment is needed. The parts are made from 1/8 in. thick boxed tubing to handle the frame-twisting power of big blocks. Order the crossmember recommended for your vehicle and transmission application.
( 592 )
$75.99
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$349.99
$68.39
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$314.99
Trans-Dapt Performance Swap-In-A-Box Complete Engine Swap Kits
Trans-Dapt Performance Swap-In-A-Box complete engine swap kits feature everything you need to transplant that new engine into your ride. They include a set of application-specific headers (painted or ceramic coated), motor and transmission mounts, and some kits contain oil filtration components. By matching up these parts by vehicle, Trans-Dapt ensures a swap with minimal modifications needed for installation. Give your ride a heart transplant using one of these turnkey Swap-In-A-Box complete engine swap kits!
( 62 )
$720.99
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$1,986.99
On Sale
Hooker Blackheart Transmission Crossmembers
Hooker Blackheart transmission crossmembers provide easy installation for a variety of engine and transmission swap combinations. Manufactured from steel with a black powdercoat, these crossmembers are designed to be used with Blackheart engine adapter plates for a trouble-free LS, LT, Hemi, Coyote, etc. engine swap. Order the model recommended for your vehicle. Blackheart crossmember features: * Comprehensively designed as an integral part of the complete Hooker swap system, providing maximum level of inter-component compatibility * Designed specifically for use with Hooker engine adapter plates * High-arch exhaust passages provide maximum available exhaust ground clearance * Design geometry replicates stock drivetrain height, inclination angle, and offset for optimized vehicle and component compatibility * High-strength/low alloy steel construction provides desirable balance of strength, stiffness, weight, and cost * Powdercoat finish provides attractive, corrosion-resistant appearance * Provide bolt-in compatibility with Hooker/Holley engine mounts, swap headers, exhaust systems, and oil pans * Hardware included
( 28 )
$460.95
$187.95
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$413.95
UMI Performance Torque Arm Relocation Kits
UMI Performance torque arm relocation kits are designed to remove the front mounting point of the torque arm off of the transmission and protect the tailshaft from damage. General Motors' tailshaft mounted design works great for a stock-driven vehicle; however, it is not designed to take abuse and hard launches. UMI Performance torque arm relocation kits replace your transmission crossmember with a new, stronger setup with a built-in torque arm mount. Each relocation kit is designed to fit a specific transmission and will work with virtually any stock-style aftermarket torque arm, as well as with the factory torque arm. These units are built using rectangular mild steel tubing and 0.188 in. mild steel mounting plates and they include all hardware needed for installation. The torque arm mount is machined from 0.250 in. thick mild steel and features a new clamshell for appropriately attaching the torque arm to the new crossmember.
( 40 )
$269.99
Trans-Dapt Performance Crossmembers
Trans-Dapt Performance crossmembers eliminate the need to fabricate a rear crossmember. Their vehicle-specific transmission crossmembers are available as kits, with braces and mounting pads, or as the crossmember alone. Position your engine and transmission properly and exactly where you need them with quality, durable crossmembers from Trans-Dapt.
( 113 )
$73.99
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$311.99
ICT Billet Solid Transmission Mounts
ICT Billet offers a wide array of high-quality, aftermarket automotive products—including ICT Billet solid transmission mounts. They are made from aerospace-grade billet aluminum to securely locate and stabilize your transmission. Proper mounting prevents misalignment and unnecessary strain on your driveline components caused by high loads that can otherwise interfere with correct transmission operation.
( 8 )
$59.99
On Sale
Summit Racing™ Lightweight Transmission Crossmembers
Strengthen your transmission support and reduce the weight of your vehicle with Summit Racing™ lightweight transmission crossmembers. Through advanced design and manufacturing, these crossmembers are stronger than standard boxed-steel transmission crossmembers, while weighing an average of 35-percent less. The crossmembers are a direct bolt-in and do not require any additional brackets or adapters to complete the installation. They also allow you to run a true dual-exhaust system with most popular GM transmissions and do not affect ground clearance. The welded design with clear powdercoat finish gives these lightweight crossmembers a fabricated look that's sure to complement your ride. Order the model recommended fit your application.
( 14 )
$308.99
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$339.99
$278.09
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$305.99
On Sale
Hooker Transmission Crossmember Extension Brackets
Get your LS engine installed properly using one of these Hooker transmission crossmember extension brackets. They are manufactured from quality materials and bolt in place for an easy installation. The brackets are available for different types of transmissions, so they're sure to have you covered.
( 4 )
$46.49
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$47.72
Trans-Dapt Performance Engine Swap Motor Mounts
When swapping out the engine in your hot rod, you need motor mounts and inserts that you can count on. Trans-Dapt has done all of the work for you in making these engine swap motor mounts. The units are available for a variety of mounting styles, and they're made with quality materials, such as rubber, steel, and polyurethane. These motor mounts are designed for specific vehicle and/or engine applications, so you can be assured of a perfect fit and great performance.
( 352 )
$187.99
UMI Performance Transmission Crossmembers
UMI Performance transmission crossmembers are designed for late model F-bodies. These crossmembers are built using 0.120 in. rectangular tubing, 0.188 in. mild steel mounting plates, and a 0.375 in. thick transmission mount. These crossmembers are powdercoated bright red or gloss black and include new mounting hardware.
( 5 )
$129.99
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$349.99
Trans-Dapt Performance Universal Transmission Mounts
Eliminate the hassle of fabricating a rear crossmember, and position your engine and transmission where you want them, with Trans-Dapt Performance universal transmission mounts. They'll support most standard and automatic transmissions with open channel frames and widths of 26 in. to 36 in. between the frame rails. With 0.114 in. wall thickness, they're available with no drop, 3 in., and 6 in. drops, either as kits with braces and mounting pads or as the crossmember alone.
( 48 )
$169.99
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$204.99
QA1 Torque Arm Crossmembers
QA1 offers replacement torque arm crossmembers for a variety of suspension conversion systems and vehicle applications. These tubular-style rear crossmembers are machined from steel with a black powdercoat finish. Hardware is included. Order the model recommended for your setup.
Not Yet Reviewed
$249.95
Instant Rebate
QA1 Transmission Crossmembers
QA1 transmission crossmembers provide an easy bolt-in option to simplify a transmission swap and even give you more space for your performance exhaust. When swapping a GM engine into a Mustang, for instance, GM transmission crossmembers are required to bolt in the transmission. Unless otherwise noted, a polyurethane transmission mount and mounting hardware are included. Order the model designed to fit your application.
( 2 )
$238.46
Sikky Manufacturing Transmission Crossmembers
Sikky Manufacturing transmission crossmembers are CAD/CAM designed and CNC laser-cut from steel and welded in-house. Available for many applications, each crossmember is powdercoated black and includes a high performance urethane bushing with mount bolt. Select the Sikky transmission crossmember needed for your vehicle.
( 1 )
$138.69
On Sale
Summit Racing™ Adjustable Transmission Mounts
Summit Racing™ adjustable transmission mounts replace your stock transmission mount and give you the adjustability you need when swapping transmissions. They adjust up to 2.5 in. of offset, helping you reach your crossmember mounting holes. These mounts allow for adjustability in either direction, as needed, and eliminate all the hassles of miss-alignment, saving you time and money. Made from sturdy 3/16 in. thick steel and powdercoated for rust and corrosion resistance, these adjustable transmission mounts are an excellent choice for any project utilizing an engine or transmission swap.
( 30 )
$110.99
$99.89
On Sale
Hooker LS Engine Swap Transmission Crossmembers
Hooker LS engine swap transmission crossmembers are built to mount the transmission in place when switching to an LS engine. They are designed using CAD modeling/FEA analysis for optimal fitment, strength, weight, safety, and appearance. The crossmembers are manufactured from high-strength, low-alloy steel and then black powdercoated for maximum durability. They provide an engineered 3 to 3.5 degree engine/transmission inclination angle that is critical to obtaining suitable U-joint working angles. They are designed to be used in conjunction with Hooker LS engine swap brackets to provide a bolt-in installation of Hooker LS swap manifolds, headers, and exhaust systems for this application.
( 43 )
$384.95
$253.81
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$460.95
ICT Billet Motor Mount Adapters
ICT Billet motor mount adapters are beautiful engine swap brackets. They are manufactured from aerospace grade billet aluminum, they offer adjustable mounting positions, from stock bellhousing location to 2.25 in. forward. Each kit will include plates and bolts. Mount your swap securely with the strength and style of ICT Billet motor mount adapters.
( 94 )
$217.99
Stifflers Suspension Transmission Crossmembers
Stifflers Suspension transmission crossmembers are engineered to deliver quality, fit, finish, and functionality. At the core of these kits are Stifflers' unique single-tube crossmembers—adding strength and stiffness beyond that of OEM versions, while offering versatility without the excess weight. They also allow more exhaust clearance. To install, simply slide the mounting sleeves and reposition the spacers to cover your application. They work with OEM and aftermarket transmission mounts, and will maintain your current pinion angle. Stifflers Suspension transmission crossmembers include low-deflection polyurethane bushings in the mounts to dampen driveline vibrations and noise, but for racing applications they can be replaced by optional solid bushings. Order the crossmembers designed for fitment on your make and model.
( 78 )
$249.95
UMI Performance Transmission Mounted Torque Arms
UMI Performance transmission mounted torque arms eliminate unwanted traction problems and transfer your power to the wheels. UMI Performance transmission mounted torque arms bolt on directly in place of the factory unit using existing mounting holes and require no drilling or welding. These torque arms are designed to eliminate wheel hop under hard acceleration and reduce 60 ft. times instantly. UMI Performance transmission mounted torque arms are supplied with a low-deflection front bushing designed to replace the stock rubber bushing and bolt in the existing clamshell. The rear torque arm mount is constructed entirely of 0.375 in. thick, CNC-machined mild steel and is fully MIG-welded. These torque arms feature on-car adjustability for easy pinion angle adjustments using a 4140 heat-treated adjuster and 3/4 in. rod ends. Additional features include: * Constructed from 1.250 in. x 0.120 in. DOM seamless steel tubing * TIG-welded 4140 chromoly tube adapters * On-car adjuster built using 4140 chromoly steel and heat-treated for maximum strength * All mounting plates are CNC-machined to ensure hole-to-hole accuracy * Rear mounting plates use 0.375 in. thick mild steel and are designed to fit stock as well as 12-bolt and 9 in. rear-end housings * Rear mounts feature solid 3/4 in. rod ends and are attached using Grade 8 hardware * Durable powdercoated finish
( 19 )
$336.39
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$759.99
American Powertrain X-Factor Crossmembers
American Powertrain X-Factor crossmembers offer half the weight of traditional crossmembers—with all of the strength. Designed to fit with most muscle car platforms and the latest transmissions, X-Factor aluminum crossmembers are 1,000 hp strong and feature a powdercoat finish for added durability. They're available for a variety of vehicle and transmission applications.
( 34 )
$249.95
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$289.96
Top Street Performance Transmission Mounts
Top Street Performance transmission mounts are ideal choices when refreshing or swapping your gearbox. Composed of a high-strength, zinc coated steel bracket, each one features a polyurethane bushing available in regular or short (1.5 in.) height. Top Street Performance delivers quality performance with their transmission mounts designed to fit your GM transmission application. Select the mount with the bushing height preferred.
Not Yet Reviewed
$49.38
On Sale
Hooker Super Competition Engine Swap Transmission Mount Kits
Hooker Super Competition engine swap transmission mount kits are available for Chevy, Chrysler, and Ford small block and big block engines. These strong mounts are designed from steel and are engineered to provide you with an exact fit and a simple installation. Hooker Super Competition engine swap mount kits are the mounts of choice when matched with the appropriate engine swap.
( 11 )
$460.95
$413.95
On Sale
Hooker Blackheart Engine Swap Motor Mount Kits
Add more cubic inches and power to your vehicle with the help of Hooker Blackheart engine swap mount kits. The kits are available for most popular models of cars and trucks with a variety of popular engine sizes. They include all of the components you'll need, at a cost that won't break your budget.
( 71 )
$276.95
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$337.95
Advance Adapters Engine Swap Motor Mounts
Reduce vibration and extend the life of your engine's components and accessories with Advance Adapters top-quality, proven-design motor mounts. For some of the bases that require welding, a temporary bolt-on solution allows you to drive your vehicle to the welding shop of your choice. Select the Advance Adapters engine swap motor mounts designed for your vehicle application.
( 127 )
$182.46
