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!
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
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QA1 C/O Spring - 2.5in ID x 12in Silver 12HT400
QA1
$79.95The QA1 C/O Spring delivers the precise load-carrying capability and consistent travel that high-performance suspension demands. With a 400 lb/in spring rate and 12-inch length, this coil-over spring maintains predictable chassis dynamics under load...QA112HT400- SKU:
- QA112HT400
- Availability:
- Ships Same Business Day
- Weight:
- 5.95 LBS
- MFG Part #:
- 12HT400
$79.95Qty in Cart: 0Quantity:Price:$79.95Subtotal: -
QA1 C/O Spring - 2.5in ID x 12in Silver 12HT350
QA1
$79.95If you're building or tuning a coil-over suspension system, spring rate consistency is non-negotiable—and this QA1 unit delivers the predictable 350 lb/in response your chassis needs for precise handling and repeatable performance. The 2.5-inch ID and...QA112HT350- SKU:
- QA112HT350
- Availability:
- Ships Same Business Day
- Weight:
- 5.80 LBS
- MFG Part #:
- 12HT350
$79.95 -
QA1 C/O Spring - 2.5in ID x 12in Silver 12HT300
QA1
$79.95If you're building a coil-over suspension system or upgrading your existing setup, spring rate consistency is critical to achieving predictable handling and proper load control. The QA1 12HT300 delivers a 300 lb/in rate in a compact 2.5-inch ID package,...QA112HT300- SKU:
- QA112HT300
- Availability:
- Ships Same Business Day
- Weight:
- 4.77 LBS
- MFG Part #:
- 12HT300
$79.95 -
QA1 C/O Spring - 2.5in ID x 12in Silver 12HT250
QA1
$79.95Coil-over suspension demands a spring that can handle extreme travel and maintain consistent performance under load—the QA1 C/O Spring delivers precisely that. With a 250 lb/in rate and 12-inch length, this spring provides the progressive support needed...QA112HT250- SKU:
- QA112HT250
- Availability:
- Ships Same Business Day
- Weight:
- 5.47 LBS
- MFG Part #:
- 12HT250
$79.95 -
QA1 C/O Spring - 2.5in ID x 12in Silver 12HT220
QA1
$79.95When you're tuning a coil-over suspension system, spring rate directly determines how your chassis responds to input—and 220 lb/in offers the sweet spot for street-driven performance cars and entry-level track builds. This QA1 coil spring handles the...QA112HT220- SKU:
- QA112HT220
- Availability:
- Ships Same Business Day
- Weight:
- 3.97 LBS
- MFG Part #:
- 12HT220
$79.95 -
QA1 C/O Spring - 2.5in ID x 12in Silver 12HT200
QA1
$79.95If you're building a coil-over suspension system, spring rate is everything—and the QA1 12HT200 delivers a proven 200 lb/in rate that balances responsive handling with controlled compliance. This high-travel spring is engineered for dedicated racers and...QA112HT200- SKU:
- QA112HT200
- Availability:
- Ships Same Business Day
- Weight:
- 3.90 LBS
- MFG Part #:
- 12HT200
$79.95 -
QA1 C/O Spring - 2.5in ID x 12in Silver 12HT170
QA1
$79.95QA1 coil-over springs deliver the adjustability serious racers and suspension builders demand. With a 170 lb/in rate and 12-inch travel capacity, this spring handles aggressive driving dynamics while maintaining consistent load support across your...QA112HT170- SKU:
- QA112HT170
- Availability:
- Ships Same Business Day
- Weight:
- 3.20 LBS
- MFG Part #:
- 12HT170
$79.95 -
QA1 C/O Spring - 2.5in ID x 12in Silver 12HT150
QA1
$79.95Precision suspension tuning demands a spring that delivers consistent, predictable performance without compromise. The QA1 C/O Spring gives you the lightweight, durable foundation needed for repeatable handling and optimal load control in coil-over...QA112HT150- SKU:
- QA112HT150
- Availability:
- Ships Same Business Day
- Weight:
- 3.50 LBS
- MFG Part #:
- 12HT150
$79.95 -
QA1 C/O Spring - 2.5in ID x 12in Silver 12HT130
QA1
$79.95Whether you're tuning a suspension for road course precision or dialing in a dedicated race car, spring rate selection is non-negotiable—and this QA1 coil-over spring delivers the consistent 130 lb/in rate you need for predictable handling and...QA112HT130- SKU:
- QA112HT130
- Availability:
- Ships Same Business Day
- Weight:
- 2.95 LBS
- MFG Part #:
- 12HT130
$79.95 -
QA1 C/O Spring - 2.5in ID x 12in Silver 12HT110
QA1
$79.95If you're building a coil-over suspension system, spring rate consistency is everything—and this QA1 unit delivers the predictable 110 lb/in response your setup demands. Whether you're tuning a track car or dialing in a road course platform, a quality...QA112HT110- SKU:
- QA112HT110
- Availability:
- Ships Same Business Day
- Weight:
- 2.99 LBS
- MFG Part #:
- 12HT110
$79.95 -
QA1 C/O Spring - 2.5in ID x 12in Silver 12HT095
QA1
$79.95Coil-over suspension tuning demands precision—and this QA1 spring delivers exactly that. With a 95 lb/in rate and 2.5-inch bore, you'll achieve the compliance and responsiveness your setup needs without compromising ride quality. Whether you're dialing...QA112HT095- SKU:
- QA112HT095
- Availability:
- Ships Same Business Day
- Weight:
- 3.32 LBS
- MFG Part #:
- 12HT095
$79.95Qty in Cart: 0Quantity:Price:$79.95Subtotal: -
QA1 Chrome Coil-Over Spring 12in Length 2.5in ID 225lb/in Rate 12CS225
QA1
$89.95A proper coil-over spring is foundational to suspension performance—it controls weight transfer, maintains consistent ride height, and directly impacts handling precision. This QA1 chrome coil-over spring delivers a 225 lb/in rate in a compact 12-inch...QA112CS225- SKU:
- QA112CS225
- Availability:
- Ships Same Business Day
- Weight:
- 4.91 LBS
- MFG Part #:
- 12CS225
$89.95 -
QA1 Chrome Coil-Over Spring 12in 2.5in ID 175lb/in QA112CS175
QA1
$89.95A properly matched coil-over spring is critical to suspension geometry and handling dynamics. The QA1 Chrome Coil-Over Spring delivers a predictable 175 lb/in rate with QA1's proven reliability, ensuring consistent performance across multiple heat cycles...QA112CS175- SKU:
- QA112CS175
- Availability:
- Ships Same Business Day
- Weight:
- 4.27 LBS
- MFG Part #:
- 12CS175
$89.95 -
QA1 C/O Spring - 2.5in ID x 10in Silver 10HT500
QA1
$79.95If you're building a coil-over suspension system that demands precise load control and consistent performance, the QA1 C/O Spring delivers the spring rate consistency you need for both street and track applications. With a 500 lb/in rate and 10-inch...QA110HT500- SKU:
- QA110HT500
- Availability:
- Ships Same Business Day
- Weight:
- 5.78 LBS
- MFG Part #:
- 10HT500
$79.95 -
QA1 C/O Spring - 2.5in ID x 10in Silver 10HT450
QA1
$79.95If you're building a coil-over suspension system that demands precision and reliability, the QA1 C/O Spring delivers the consistent performance you need for track duty or aggressive street applications. With a 450 lb/in spring rate and 10-inch length,...QA110HT450- SKU:
- QA110HT450
- Availability:
- Ships Same Business Day
- Weight:
- 6.29 LBS
- MFG Part #:
- 10HT450
$79.95 -
QA1 C/O Spring - 2.5in ID x 10in Silver 10HT400
QA1
$79.95If you're building a coil-over suspension system that demands precise spring rates and reliable performance under load, the QA1 C/O Spring delivers the consistency you need. With a 400 lb/in spring rate and 10-inch travel capability, this spring provides...QA110HT400- SKU:
- QA110HT400
- Availability:
- Ships Same Business Day
- Weight:
- 5.20 LBS
- MFG Part #:
- 10HT400
$79.95 -
QA1 C/O Spring - 2.5in ID X 10in Silver 10HT375
QA1
$79.95A properly tuned coil-over spring is fundamental to suspension geometry and vehicle control. The QA1 C/O Spring delivers consistent spring rates essential for precision tuning on the track or street, allowing you to dial in your suspension setup without...QA110HT375- SKU:
- QA110HT375
- Availability:
- Ships Same Business Day
- Weight:
- 4.50 LBS
- MFG Part #:
- 10HT375
$79.95 -
QA1 C/O Spring - 2.5in ID X 10in Silver 10HT325
QA1
$79.95Coil-over suspension requires precision-matched spring rates to dial in your chassis geometry and achieve consistent performance across varying track conditions. The QA1 C/O Spring delivers a moderate 325 lb/in rate in a compact 10-inch package, making...QA110HT325- SKU:
- QA110HT325
- Availability:
- Ships Same Business Day
- Weight:
- 4.44 LBS
- MFG Part #:
- 10HT325
$79.95 -
QA1 C/O Spring - 2.5in ID x 10in Silver 10HT300
QA1
$79.95The QA1 C/O Spring delivers the consistent, predictable spring rate you need for precision suspension tuning across high-travel coil-over applications. With a 300 lb/in rate and robust construction, this spring maintains stability under load while...QA110HT300- SKU:
- QA110HT300
- Availability:
- Ships Same Business Day
- Weight:
- 4.44 LBS
- MFG Part #:
- 10HT300
$79.95 -
QA1 C/O Spring - 2.5in ID x 10in Silver 10HT275
QA1
$79.95The QA1 C/O Spring delivers the consistent, predictable suspension geometry you need for precise handling and repeatable lap times. With a 750 lb/in spring rate and 10-inch travel capability, this coil-over spring handles both street and track demands...QA110HT275- SKU:
- QA110HT275
- Availability:
- Ships Same Business Day
- Weight:
- 3.50 LBS
- MFG Part #:
- 10HT275
$79.95
