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 Base Valve Medium 9055-324
QA1
$44.95If you're fine-tuning your suspension for precise damping control, the QA1 Base Valve Medium is engineered to dial in your shock performance with predictable, adjustable valving. This steel construction valve delivers the mid-range compliance needed for...QA19055-324- SKU:
- QA19055-324
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
$44.95 -
QA1 Threaded Sleeve Ball Joint K727 2.185in OD 9033-427
QA1
$21.95A worn or loose ball joint compromises your suspension's geometry and steering response, creating safety concerns and accelerating tire wear. The QA1 Threaded Sleeve Ball Joint K727 delivers the precision fit and durability you need for dependable...QA19033-427- SKU:
- QA19033-427
- Availability:
- Ships Same Business Day
- Weight:
- 0.44 LBS
$21.95 -
QA1 Rod Piston .500in OD 6in 9028-134
QA1
$30.95If you're rebuilding or customizing a QA1 shock system, this rod piston is the precision component that directly impacts your suspension's responsiveness and durability. A quality piston ensures consistent damping force throughout the shock's stroke,...QA19028-134- SKU:
- QA19028-134
- Availability:
- Ships Same Business Day
- Weight:
- 0.46 LBS
$30.95 -
QA1 Spring Seat 2.5in Coil - Over Steep Angle Blk 9018-113
QA1
$26.95If you're running QA1 coil-over shocks on a steep-angle chassis setup, this spring seat is critical for maintaining consistent spring preload and suspension geometry. A properly seated spring eliminates bind, reduces noise, and ensures your suspension...QA19018-113- SKU:
- QA19018-113
- Availability:
- Ships Same Business Day
- Weight:
- 0.23 LBS
$26.95Qty in Cart: 0Quantity:Price:$26.95Subtotal: -
QA1 Thrust Bearing Kit w/ Spanner Wrench 7888-112
QA1
$68.95Proper thrust bearing preload is essential for maintaining shock absorber performance and preventing premature wear in high-demand racing applications. This QA1 kit supplies everything needed to service two shocks with precision-machined thrust bearings...QA17888-112- SKU:
- QA17888-112
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
$68.95 -
QA1 Ring Shim Kit 8pk 1.300in OD x .015in 7855-199
QA1
$12.99Shock valve tuning demands precision, and worn or incorrect shims directly compromise your suspension's damping characteristics and handling balance. This QA1 ring shim kit gives you the ability to dial in your shock valving with exact...QA17855-199- SKU:
- QA17855-199
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
$12.99 -
QA1 Valve Disc 8pk 1.300 OD x .004in 7855-178
QA1
$7.99Shock valve performance directly impacts your suspension's ability to handle aggressive cornering, braking, and acceleration. QA1 valve discs are precision-engineered components that fine-tune damping characteristics, allowing you to dial in the exact...QA17855-178- SKU:
- QA17855-178
- Availability:
- Ships Same Business Day
- Weight:
- 0.01 LBS
$7.99Qty in Cart: 0Quantity:Price:$7.99Subtotal: -
QA1 Valve Disc 8pk 1.300 OD x .012in 7855-115
QA1
$8.99Precision shock valve tuning demands exact components, and QA1 valve discs are engineered to exacting tolerances for consistent damping control. Whether you're fine-tuning compression or rebound characteristics, these steel discs allow you to dial in...QA17855-115- SKU:
- QA17855-115
- Availability:
- Ships Same Business Day
- Weight:
- 0.01 LBS
$8.99 -
QA1 Valve Disk 8pk 1.300 OD x .006in 7855-112
QA1
$8.99Precision shock valve tuning demands high-tolerance components that can withstand thousands of compression and rebound cycles without degradation. QA1 valve disks are engineered to exact specifications, giving you repeatable damping characteristics and...QA17855-112- SKU:
- QA17855-112
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
$8.99 -
QA1 Valve Disk 8pk .708 OD x .015in 7855-101
QA1
$7.99Fine-tune your QA1 shock valving with precision-engineered valve disks that deliver consistent damping performance across your entire suspension range. These steel disks are essential replacements or upgrades for custom shock builds, ensuring your...QA17855-101- SKU:
- QA17855-101
- Availability:
- Ships Same Business Day
- Weight:
- 0.01 LBS
$7.99 -
QA1 63 Series Shock 9in Rear 5C/3R 6395-3
QA1
$234.95If you're running a late model or modified on the track, shock performance directly impacts your lap times and driver confidence through transitions. The QA1 63 Series delivers consistent damping across varying grip conditions—especially when the track...QA16395-3- SKU:
- QA16395-3
- Availability:
- Ships Same Business Day
- Weight:
- 4.70 LBS
$234.95 -
QA1 63 Series Shock 9in Rear 4C/6R 6394-6
QA1
$234.95If you're running late models or modifieds on dirt or asphalt, shock performance directly impacts your ability to find grip in marginal conditions. The QA1 63 Series delivers the consistent, predictable damping you need across varying track surfaces...QA16394-6- SKU:
- QA16394-6
- Availability:
- Ships Same Business Day
- Weight:
- 4.70 LBS
$234.95 -
QA1 63 Series Shock 7in Front 5C/850R 6375-850
QA1
$234.95The QA1 63 Series delivers consistent damping control across varying track conditions, making it the go-to choice for competitors who need predictable suspension geometry without constant adjustments. Its twin-tube design and deflective disc valving...QA16375-850- SKU:
- QA16375-850
- Availability:
- Ships Same Business Day
- Weight:
- 3.85 LBS
$234.95 -
QA1 63 Series Shock 7in Front 5C/650R 6375-650
QA1
$234.95Whether you're chasing consistency across multiple track configurations or need a sealed shock that delivers predictable performance without maintenance, the QA1 63 Series front shock is engineered for drivers who demand reliability and feel. The...QA16375-650- SKU:
- QA16375-650
- Availability:
- Ships Same Business Day
- Weight:
- 4.02 LBS
$234.95 -
QA1 63 Series Shock 7in Front 5C/500R 6375-500
QA1
$234.95The QA1 63 Series delivers consistent damping control across variable track conditions without the maintenance burden of rebuildable shocks. Its twin-tube design excels when grip is compromised, making it the trusted choice for dirt and asphalt...QA16375-500- SKU:
- QA16375-500
- Availability:
- Ships Same Business Day
- Weight:
- 3.90 LBS
$234.95 -
QA1 63 Series Shock 7in Front 5C/400R 6375-400
QA1
$234.95The QA1 63 Series delivers consistent damping performance across variable track conditions without the maintenance burden of rebuilds. Its twin-tube design excels when grip is scarce, making it the preferred choice for late models and modifieds running...QA16375-400- SKU:
- QA16375-400
- Availability:
- Ships Same Business Day
- Weight:
- 3.90 LBS
$234.95 -
QA1 Shock Rear GM Monotube 12-2 valve w/Hyperscrew 276812-2M
QA1
$229.95If you're running a stock-mount class, you need a shock that delivers predictable damping characteristics without the guesswork of aftermarket geometry. QA1's 27 Series monotube shocks are purpose-built for street stocks, hobby stocks, and mini...QA1276812-2M- SKU:
- QA1276812-2M
- Availability:
- Ships Same Business Day
- Weight:
- 4.50 LBS
$229.95 -
QA1 Steel Shock - Monotube 9in 12C - 2R Linear 26912-2M
QA1
$219.95The QA1 Steel Shock 26912-2M delivers the consistent, predictable damping you need for precision tuning across a wide range of suspension setups. Built with a proven monotube design and linear valving, this shock provides reliable performance without...QA126912-2M- SKU:
- QA126912-2M
- Availability:
- Ships Same Business Day
- Weight:
- 5.10 LBS
$219.95 -
QA1 Coil Spring 2.5in ID x 14in Black 14HT350B
QA1
$79.95If you're building a coil-over suspension system, spring rate directly impacts your vehicle's handling balance, ride height control, and overall chassis dynamics. This QA1 spring delivers a solid 350 lb/in rate—stiff enough for performance driving...QA114HT350B- SKU:
- QA114HT350B
- Availability:
- Ships Same Business Day
- Weight:
- 7.00 LBS
$79.95 -
QA1 Coil Spring 2.5in ID x 14in Black 14HT250B
QA1
$79.95If you're building a dedicated track car or race-ready suspension setup, spring rate consistency is critical—and the QA1 14HT250B delivers the predictable, linear response you need for precise tuning. This coil-over spring is engineered to handle...QA114HT250B- SKU:
- QA114HT250B
- Availability:
- Ships Same Business Day
- Weight:
- 6.00 LBS
$79.95
