Suspension and Components
Circle Track Suspension Parts: Control Arms, Shocks & Springs for IMCA & Late Models at JJ Motorsports
Optimize handling and stability on the track with premium circle track suspension components from JJ Motorsports. Our selection includes control arms, shocks, springs, weight jacks, and more, designed for superior cornering, durability, and performance in late models, modifieds, street stocks, and IMCA dirt racing. Compatible with GM Metric frames and other setups, these high-quality parts ensure reliable operation and enhanced traction under intense racing conditions.
Shop trusted brands like Allstar Performance. Explore related categories such as circle track steering and components for precision control or circle track brakes for stopping power.
Top Circle Track Suspension Products
- Lower Control Arm Kit for 1978-88 GM Metric Street Stock & Hobby Stock, Includes Ball Joints & Greasable Bushings – This kit includes stamped steel lower control arms with black powdercoat finish, greasable bushings, and weld-in greasable ball joints for enhanced suspension performance. It is compatible with 1978-88 GM Metric G-Body vehicles and designed for street stock and hobby stock racing applications.
- Allstar Performance Metric Upper Control Arm Left 9in ALL57984 – This tubular upper control arm is designed for the driver side on GM Metric Frames, measuring 9.00 inches long with a bolt-in ball joint and steel construction finished in black powder coat. It features greasable pivot points and is ideal for hobby stock race cars, providing a perfect fit and function.
- Spring Cup Weight Jack Bolt Combo ONE PAIR IMCA Modified Dirt USRA B-Mod Cups – This kit includes two 8" long steel jack bolts with 1-8 course threads and two steel spring cups with a 5-inch outer diameter. It is designed for IMCA Modified, Dirt, and USRA B-Mod cups.
Browse our in-stock inventory below with same-day shipping and expert support. Free shipping on orders over $99! Questions? Contact us for fitment advice!
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- Price
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Schrader Valve GEN5250
GENESIS SHOCKS
$8.49A reliable Schrader valve is fundamental to maintaining proper tire pressure and system integrity in high-performance applications. Whether you're running a precision air suspension setup or managing critical pneumatic systems, this valve delivers...GEN5250- SKU:
- GEN5250
- Availability:
- Ships Same Business Day
- Weight:
- 0.01 LBS
- MFG Part #:
- GEN5250
$8.49Qty in Cart: 0Quantity:Price:$8.49Subtotal: -
Steel Eyering m14 w/Bearing GEN4050
GENESIS SHOCKS
$25.99Precision shock geometry starts with a reliable eyering that can handle the demands of aggressive driving and track conditions. This steel eyering delivers the durability and consistent performance you need when adjusting suspension geometry or replacing...GEN4050- SKU:
- GEN4050
- Availability:
- Ships Same Business Day
- Weight:
- 0.23 LBS
- MFG Part #:
- GEN4050
$25.99Qty in Cart: 0Quantity:Price:$25.99Subtotal: -
2in Steel Shock Extensn M14 GEN4020
GENESIS SHOCKS
$20.99If your suspension geometry demands additional shock travel or you're running a custom chassis setup, this 2in steel shock extension provides the precise spacing you need without compromising durability or performance. The M14x1.25 thread interface...GEN4020- SKU:
- GEN4020
- Availability:
- Ships Same Business Day
- Weight:
- 0.37 LBS
- MFG Part #:
- GEN4020
$20.99Qty in Cart: 0Quantity:Price:$20.99Subtotal: -
1in Steel Shock Extensn M14 GEN4010
GENESIS SHOCKS
$18.99When your suspension geometry demands precise shock positioning, this extension delivers the adjustment you need without compromising structural integrity. The 1-inch extension allows you to fine-tune ride height and maintain proper shock angles for...GEN4010- SKU:
- GEN4010
- Availability:
- Ships Same Business Day
- Weight:
- 0.23 LBS
- MFG Part #:
- GEN4010
$18.99Qty in Cart: 0Quantity:Price:$18.99Subtotal: -
Birdcage Clevis Shock Mount GEN3750
GENESIS SHOCKS
$86.99A quality shock clevis mount is critical for maintaining precise suspension geometry and load transfer during high-performance driving. The Birdcage Clevis Shock Mount GEN3750 provides a robust, direct connection point that eliminates deflection and...GEN3750- SKU:
- GEN3750
- Availability:
- Ships Same Business Day
- Weight:
- 1.10 LBS
- MFG Part #:
- GEN3750
$86.99Qty in Cart: 0Quantity:Price:$86.99Subtotal: -
2in Shock Extension m14 GEN3020
GENESIS SHOCKS
$20.99When you're fine-tuning suspension geometry or adapting a shock absorber to your specific chassis setup, ride height matters—down to the millimeter. This 2-inch shock extension gives you the adjustment range you need without compromising structural...GEN3020- SKU:
- GEN3020
- Availability:
- Ships Same Business Day
- Weight:
- 0.27 LBS
- MFG Part #:
- GEN3020
$20.99Qty in Cart: 0Quantity:Price:$20.99Subtotal: -
On Sale
Fox Factory Shock RR Kalamazoo Spec 7in Adjustable Rebound 983-99-008-13
FOX FACTORY INC
MSRP: $249.99Now: $234.99Was: $249.99If you're running serious off-road or performance driving applications, shock tuning directly impacts your vehicle's handling, comfort, and tire contact. The Fox Factory Shock RR Kalamazoo Spec gives you adjustable rebound damping—meaning you can dial in...FOX983-99-008-13- SKU:
- FOX983-99-008-13
- Availability:
- Ships Same Business Day
- Weight:
- 5.00 LBS
- MFG Part #:
- 983-99-008-13
MSRP: $249.99Now: $234.99Was: $249.99Qty in Cart: 0Quantity:Price:MSRP: $249.99Now: $234.99Was: $249.99Subtotal: -
On Sale
Fox Factory Shock LR Kalamazoo Spec 7in Adjustable Rebound FOX983-99-008-12
FOX FACTORY INC
MSRP: $249.99Now: $234.99Was: $249.99Precision suspension tuning demands a shock that responds to your adjustments, not fights them. The Fox Factory Shock LR Kalamazoo Spec delivers monotube performance with adjustable rebound damping, letting you dial in exactly the handling...FOX983-99-008-12- SKU:
- FOX983-99-008-12
- Availability:
- Ships Same Business Day
- Weight:
- 5.00 LBS
- MFG Part #:
- 983-99-008-12
MSRP: $249.99Now: $234.99Was: $249.99Qty in Cart: 0Quantity:Price:MSRP: $249.99Now: $234.99Was: $249.99Subtotal: -
On Sale
Fox Factory Shock RF Kalamazoo Spec 7in Adjustable Rebound 983-99-008-11
FOX FACTORY INC
MSRP: $249.99Now: $234.99Was: $249.99Monotube shock absorbers deliver consistent damping performance across the full stroke without fade, making them essential for serious track work and high-speed driving. The Fox Factory RF Kalamazoo Spec gives you field-adjustable rebound tuning so you...FOX983-99-008-11- SKU:
- FOX983-99-008-11
- Availability:
- Ships Same Business Day
- Weight:
- 5.00 LBS
- MFG Part #:
- 983-99-008-11
MSRP: $249.99Now: $234.99Was: $249.99Qty in Cart: 0Quantity:Price:MSRP: $249.99Now: $234.99Was: $249.99Subtotal: -
Fox Factory Shock LF Kalamazoo Spec 7in Adjustable Rebound FOX983-99-008-10
FOX FACTORY INC
$249.99If you're running a performance vehicle that demands precision damping control, the Fox Factory Shock LF Kalamazoo Spec delivers the adjustable rebound tuning you need to dial in your suspension for any terrain or driving condition. The monotube design...FOX983-99-008-10- SKU:
- FOX983-99-008-10
- Availability:
- Ships Same Business Day
- Weight:
- 5.00 LBS
- MFG Part #:
- 983-99-008-10
$249.99Qty in Cart: 0Quantity:Price:$249.99Subtotal: -
Fox Factory Steel Shock w/Sch 8.9in 2.75C-5R Linear 983-95-509-16
FOX FACTORY INC
$329.00The Fox Factory Steel Shock delivers the responsiveness and durability demanded by serious racers and performance drivers. With its monotube design and track-proven IFP technology, this shock manages weight transfer and compression consistently across...FOX983-95-509-16- SKU:
- FOX983-95-509-16
- Availability:
- Ships Same Business Day
- Weight:
- 5.10 LBS
- MFG Part #:
- 983-95-509-16
$329.00Qty in Cart: 0Quantity:Price:$329.00Subtotal: -
Fox Factory Air Shock 2.0 5.5in Stroke 1.250in Dia Shaft 980-02-015
FOX FACTORY INC
$374.95The Fox Factory Air Shock 2.0 delivers consistent damping performance across the full stroke, making it the go-to choice for racers who demand predictable suspension behavior lap after lap. With its 5.5-inch stroke and 1.250-inch diameter shaft, this...FOX980-02-015- SKU:
- FOX980-02-015
- Availability:
- Ships Same Business Day
- Weight:
- 10.00 LBS
- MFG Part #:
- 980-02-015
$374.95 -
Fox Factory Digressive Piston With O-Ring 805-04-005-KIT
FOX FACTORY INC
$48.33Fox's digressive piston technology delivers progressive damping control that adapts to suspension movement, keeping your shocks responsive through both small bumps and aggressive compressions. This o-ring equipped piston is engineered for Fox Track...FOX805-04-005-KIT- SKU:
- FOX805-04-005-KIT
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- MFG Part #:
- 805-04-005-KIT
$48.33Qty in Cart: 0Quantity:Price:$48.33Subtotal: -
Fox Factory Schrader Valve 4pk 803-00-911
FOX FACTORY INC
$32.95Proper tire pressure maintenance is critical for suspension performance, especially when running Fox Racing Shocks. These OEM Schrader valves ensure accurate pressure readings and reliable air retention, preventing performance loss from slow leaks or...FOX803-00-911- SKU:
- FOX803-00-911
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- MFG Part #:
- 803-00-911
$32.95 -
Fox Factory Shaft Chrome Steel 9in Stroke EVO Shock 230-11-118
FOX FACTORY INC
$36.95The Fox Factory Shaft Chrome Steel 9in Stroke EVO Shock is a critical replacement component for maintaining the precision damping and responsiveness your suspension demands. Whether you're servicing a worn shock or rebuilding your entire setup, this...FOX230-11-118- SKU:
- FOX230-11-118
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- MFG Part #:
- 230-11-118
$36.95 -
Fox Factory Shaft Chrome Steel 7in Stroke EVO Shock 230-11-101
FOX FACTORY INC
$36.95If your Fox EVO shock is showing signs of wear or you're rebuilding for maximum performance, a quality replacement shaft is critical to maintaining damping consistency and ride quality. This chrome steel shaft is engineered to withstand the demands of...FOX230-11-101- SKU:
- FOX230-11-101
- Availability:
- Ships Same Business Day
- Weight:
- 0.54 LBS
- MFG Part #:
- 230-11-101
$36.95 -
Fox Factory Shaft Chrome Steel .500 10.000 Total Length 229-99-100
FOX FACTORY INC
$28.00A worn or damaged shock shaft compromises your suspension's ability to maintain consistent damping and alignment, directly impacting handling precision and ride quality. This Fox Factory replacement shaft is engineered to OEM specifications, ensuring...FOX229-99-100- SKU:
- FOX229-99-100
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- MFG Part #:
- 229-99-100
$28.00 -
Fox Factory Digressive Bleed Jet .037 Bleed 210-02-021
FOX FACTORY INC
$9.00Fine-tuning your suspension geometry requires precision components that respond predictably across varying track conditions. The Fox Factory Digressive Bleed Jet .037 is engineered to modulate damping characteristics and control oil flow through your...FOX210-02-021- SKU:
- FOX210-02-021
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- MFG Part #:
- 210-02-021
$9.00Qty in Cart: 0Quantity:Price:$9.00Subtotal: -
Fox Factory Digressive Bleed Jet .000 Bleed 210-02-020
FOX FACTORY INC
$9.00Fine-tuning your Fox shock's damping characteristics requires precision bleed jet selection, and this .000 bleed configuration delivers the adjustability serious racers and suspension tuners demand. Whether you're dialing in a track setup or optimizing...FOX210-02-020- SKU:
- FOX210-02-020
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- MFG Part #:
- 210-02-020
$9.00Qty in Cart: 0Quantity:Price:$9.00Subtotal: -
Fox Factory Body Tube - Track Steel Shocks 7.1in 204-18-081
FOX FACTORY INC
$73.25A quality shock body tube is the foundation of reliable suspension performance, and this Fox Factory unit delivers the durability required for serious track applications. The zinc-plated steel construction resists corrosion while maintaining the...FOX204-18-081- SKU:
- FOX204-18-081
- Availability:
- Ships Same Business Day
- Weight:
- 1.60 LBS
- MFG Part #:
- 204-18-081
$73.25
