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
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Hyperco Front Spring 5in ID 9.5in Tall 18Y1000
HYPERCO
$98.00If you're tuning a lightweight or mid-engine race car, a properly matched front spring is critical to maintaining consistent weight transfer and predictable handling throughout acceleration and braking zones. The Hyperco 18Y1000 delivers a stiff 1000...HYP18Y1000- SKU:
- HYP18Y1000
- Availability:
- Ships Same Business Day
- Weight:
- 7.87 LBS
- MFG Part #:
- 18Y1000
$98.00 -
Hyperco Front Spring 5in ID 9.5in Tall 18Y0950
HYPERCO
$98.00A properly tuned front suspension starts with the right spring rate, and the Hyperco 18Y0950 delivers the stiffness needed for consistent handling and load support in performance applications. With a 950 lb/in rate and compact 5-inch ID design, this coil...HYP18Y0950- SKU:
- HYP18Y0950
- Availability:
- Ships Same Business Day
- Weight:
- 7.33 LBS
- MFG Part #:
- 18Y0950
$98.00 -
Hyperco Front Spring 5in ID 9.5in Tall 18Y0900
HYPERCO
$98.00A properly tuned front spring is the foundation of responsive handling and consistent lap times. The Hyperco 18Y0900 delivers a 900 lb/in spring rate in a compact 5-inch ID package, making it ideal for lightweight race cars, formula vehicles, and custom...HYP18Y0900- SKU:
- HYP18Y0900
- Availability:
- Ships Same Business Day
- Weight:
- 10.57 LBS
- MFG Part #:
- 18Y0900
$98.00 -
Hyperco Front Spring 5in ID 9.5in Tall 18Y0850
HYPERCO
$98.00The Hyperco Front Spring delivers predictable, linear load characteristics essential for precision tuning on track or strip. With an 850 lb/in rate, this spring provides the responsive front-end geometry needed for consistent weight transfer and improved...HYP18Y0850- SKU:
- HYP18Y0850
- Availability:
- Ships Same Business Day
- Weight:
- 8.70 LBS
- MFG Part #:
- 18Y0850
$98.00 -
Hyperco Front Spring 5in ID 9.5in Tall 18Y0800
HYPERCO
$98.00If you're tuning your front suspension for precise handling and responsive feedback, you need a spring rate that matches your chassis setup and driving demands. The Hyperco Front Spring delivers a stiff 800 lb/in rate in a compact 9.5-inch package, ideal...HYP18Y0800- SKU:
- HYP18Y0800
- Availability:
- Ships Same Business Day
- Weight:
- 8.00 LBS
- MFG Part #:
- 18Y0800
$98.00 -
Hyperco Front Spring 5in ID 9.5in Tall 18Y0750
HYPERCO
$98.00If you're building a front-end suspension setup that demands precision tuning, this Hyperco coil spring delivers the stiffness and consistency professional racers and serious enthusiasts rely on. With a robust 750 lb/in rate, it's engineered for vehicles...HYP18Y0750- SKU:
- HYP18Y0750
- Availability:
- Ships Same Business Day
- Weight:
- 6.20 LBS
- MFG Part #:
- 18Y0750
$98.00 -
Hyperco Front Spring 5in ID 9.5in Tall 18Y0700
HYPERCO
$98.00If you're building a front-end suspension that demands precision load control and consistent geometry through aggressive cornering, a properly-rated coil spring is non-negotiable. The Hyperco 18Y0700 delivers a stiff 700 lb/in rate in a compact package,...HYP18Y0700- SKU:
- HYP18Y0700
- Availability:
- Ships Same Business Day
- Weight:
- 7.50 LBS
- MFG Part #:
- 18Y0700
$98.00 -
Hyperco Front Spring 5in ID 9.5in Tall 18Y0650
HYPERCO
$98.00If you're tuning a front-end suspension system that demands precision geometry and consistent load support, a properly rated coil spring is non-negotiable. The Hyperco 18Y0650 delivers a stiff 650 lb/in spring rate in a compact 5-inch diameter package,...HYP18Y0650- SKU:
- HYP18Y0650
- Availability:
- Ships Same Business Day
- Weight:
- 6.45 LBS
- MFG Part #:
- 18Y0650
$98.00 -
Hyperco Front Spring 5in ID 9.5in Tall 18Y0625
HYPERCO
$98.00If you're dialing in your front-end geometry or building a dedicated track car, spring rate is non-negotiable—and the Hyperco 18Y0625 delivers the stiffness you need for consistent, predictable chassis behavior. At 625 lb/in, this coil spring resists...HYP18Y0625- SKU:
- HYP18Y0625
- Availability:
- Ships Same Business Day
- Weight:
- 6.66 LBS
- MFG Part #:
- 18Y0625
$98.00 -
Hyperco Front Spring 5in ID 9.5in Tall 18Y0600
HYPERCO
$98.00A precision front spring is fundamental to building a responsive, balanced suspension that delivers consistent handling under load. The Hyperco 18Y0600 provides a stiff 600 lb/in rate in a compact 5-inch diameter package, making it ideal for street-strip...HYP18Y0600- SKU:
- HYP18Y0600
- Availability:
- Ships Same Business Day
- Weight:
- 5.99 LBS
- MFG Part #:
- 18Y0600
$98.00 -
Hyperco Front Spring 5in ID 9.5in Tall 18Y0550
HYPERCO
$98.00Precision front-end geometry starts with the right spring rate, and Hyperco's 550 lb/in coil spring delivers the consistent load support needed for repeatable suspension tuning. Whether you're dial-in a track setup or refining street performance, this...HYP18Y0550- SKU:
- HYP18Y0550
- Availability:
- Ships Same Business Day
- Weight:
- 5.95 LBS
- MFG Part #:
- 18Y0550
$98.00 -
Hyperco Front Spring 5in ID 9.5in Tall 18Y0525
HYPERCO
$98.00If you're building a front suspension that demands precision tuning and consistent performance, a quality coil spring is non-negotiable. The Hyperco 18Y0525 delivers a stiff 525 lb/in rate in a compact 5-inch diameter package, making it ideal for...HYP18Y0525- SKU:
- HYP18Y0525
- Availability:
- Ships Same Business Day
- Weight:
- 5.75 LBS
- MFG Part #:
- 18Y0525
$98.00 -
Hyperco Front Spring 5in ID 9.5in Tall 18Y0500
HYPERCO
$98.00If you're building a performance suspension that demands precise load control and consistent handling characteristics, a quality front spring with a defined spring rate is non-negotiable. The Hyperco 18Y0500 delivers a stiff 500 lb/in rate in a compact 9...HYP18Y0500- SKU:
- HYP18Y0500
- Availability:
- Ships Same Business Day
- Weight:
- 5.68 LBS
- MFG Part #:
- 18Y0500
$98.00 -
Hyperco Front Spring 5in ID 10.5in Tall 18Y0450-10.5
HYPERCO
$98.00If you're building a front suspension that demands precision geometry and consistent spring rates, the Hyperco Front Spring delivers the predictable performance you need for track-focused setups. With a 450 lb/in rate, this spring provides the control...HYP18Y0450-10.5- SKU:
- HYP18Y0450-10.5
- Availability:
- Ships Same Business Day
- Weight:
- 5.00 LBS
- MFG Part #:
- 18Y0450-10.5
$98.00 -
Hyperco Front Spring 5in ID 10.5in Tall 18Y0400-10.5
HYPERCO
$98.00A properly matched front spring is essential for consistent suspension geometry and predictable handling dynamics, especially in competitive racing or high-performance driving. This Hyperco coil spring delivers a firm 400 lb/in rate ideal for...HYP18Y0400-10.5- SKU:
- HYP18Y0400-10.5
- Availability:
- Ships Same Business Day
- Weight:
- 5.00 LBS
- MFG Part #:
- 18Y0400-10.5
$98.00 -
Hyperco Front Spring 5in ID 10.5in Tall 18Y0350-10.5
HYPERCO
$98.00If you're building or upgrading a performance suspension system, choosing the right front spring is critical to chassis balance and handling response. The Hyperco 18Y0350-10.5 delivers a 350 lb/in rate that strikes the ideal middle ground for...HYP18Y0350-10.5- SKU:
- HYP18Y0350-10.5
- Availability:
- Ships Same Business Day
- Weight:
- 5.00 LBS
- MFG Part #:
- 18Y0350-10.5
$98.00 -
Hyperco Front Spring 5in ID 9.5in Tall 18Y0300
HYPERCO
$98.00A properly tuned front spring is fundamental to suspension geometry and handling balance—this Hyperco unit delivers a stiff 300 lb/in rate in a compact 9.5-inch package, ideal for road racing and autocross applications where consistent spring curve and...HYP18Y0300- SKU:
- HYP18Y0300
- Availability:
- Ships Same Business Day
- Weight:
- 5.10 LBS
- MFG Part #:
- 18Y0300
$98.00 -
Hyperco Rear Spring 5in ID 16in Tall 18SNU-250
HYPERCO
$98.00If you're tuning a rear suspension for consistent load transfer and predictable handling characteristics, spring rate is everything—and this Hyperco 250 lb/in rear spring delivers the stiffness needed for precision cornering without sacrificing ride...HYP18SNU-250- SKU:
- HYP18SNU-250
- Availability:
- Ships Same Business Day
- Weight:
- 8.75 LBS
- MFG Part #:
- 18SNU-250
$98.00 -
Hyperco Rear Spring 5in ID 16in Tall 18SNU-225
HYPERCO
$98.00If you're fine-tuning your suspension geometry for track performance or building a custom setup that demands precise load control, spring rate consistency is non-negotiable. The Hyperco 18SNU-225 delivers a robust 225 lb/in rate in a compact 16-inch...HYP18SNU-225- SKU:
- HYP18SNU-225
- Availability:
- Ships Same Business Day
- Weight:
- 7.70 LBS
- MFG Part #:
- 18SNU-225
$98.00 -
Hyperco Rear Spring 5in ID 16in Tall 18SNU-200
HYPERCO
$98.00If you're tuning your rear suspension for better weight transfer and improved cornering stability, you need a spring rate that matches your setup demands. This Hyperco coil spring delivers a precise 200 lb/in rate—ideal for street-strip builds and...HYP18SNU-200- SKU:
- HYP18SNU-200
- Availability:
- Ships Same Business Day
- Weight:
- 8.56 LBS
- MFG Part #:
- 18SNU-200
$98.00
