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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Hyperco Front Spring 5.5in ID 12in Tall 18Z1000-12
HYPERCO
$93.00If you're tuning a front suspension that demands precise load control and consistent performance, a properly matched coil spring is non-negotiable. This Hyperco front spring delivers a stiff 1000 lb/in rate in a compact 12-inch package, making it ideal...HYP18Z1000-12- SKU:
- HYP18Z1000-12
- Availability:
- Ships Same Business Day
- Weight:
- 12.31 LBS
- MFG Part #:
- 18Z1000-12
$93.00 -
Hyperco Front Spring 5.5in ID 11in Tall 18Z1000-11
HYPERCO
$93.00If you're tuning a front-end suspension setup that demands precision and consistency, the Hyperco Front Spring delivers the stiffness you need without compromise. With a robust 1000 lb/in spring rate, this coil spring provides predictable load support...HYP18Z1000-11- SKU:
- HYP18Z1000-11
- Availability:
- Ships Same Business Day
- Weight:
- 8.16 LBS
- MFG Part #:
- 18Z1000-11
$93.00 -
Hyperco Front Spring 5.5in ID 9.5in Tall 18Z1000
HYPERCO
$93.00A precision-engineered front coil spring is essential for dialing in your suspension geometry and achieving consistent front-end grip during aggressive driving. The Hyperco 18Z1000 delivers a stiff 1000 lb/in rate that minimizes body roll and dive,...HYP18Z1000- SKU:
- HYP18Z1000
- Availability:
- Ships Same Business Day
- Weight:
- 8.16 LBS
- MFG Part #:
- 18Z1000
$93.00 -
Hyperco Front Spring 5.5in ID 9.5in Tall 18Z0950
HYPERCO
$93.00If you're building a high-performance front end that demands responsive handling and consistent load support, a properly-tuned coil spring is non-negotiable. The Hyperco 18Z0950 delivers a stiff 950 lb/in spring rate in a compact package, making it ideal...HYP18Z0950- SKU:
- HYP18Z0950
- Availability:
- Ships Same Business Day
- Weight:
- 8.18 LBS
- MFG Part #:
- 18Z0950
$93.00 -
Hyperco Front Spring 5.5in ID 12in Tall 18Z0900-12
HYPERCO
$93.00A front spring is fundamental to your suspension's ability to manage weight transfer, maintain consistent ride height, and deliver predictable handling characteristics on track or street. The Hyperco 18Z0900-12 delivers a stiff 900 lb/in rate in a...HYP18Z0900-12- SKU:
- HYP18Z0900-12
- Availability:
- Ships Same Business Day
- Weight:
- 11.82 LBS
- MFG Part #:
- 18Z0900-12
$93.00 -
Hyperco Front Spring 5.5in ID 11in Tall 18Z0900-11
HYPERCO
$93.00A properly matched front spring is critical for chassis geometry, weight transfer, and consistent lap times—especially under braking and cornering load. The Hyperco 18Z0900-11 delivers a stiff 900 lb/in rate in a compact 11-inch package, ideal for...HYP18Z0900-11- SKU:
- HYP18Z0900-11
- Availability:
- Ships Same Business Day
- Weight:
- 7.75 LBS
- MFG Part #:
- 18Z0900-11
$93.00 -
Hyperco Front Spring 5.5in ID 9.5in Tall 18Z0900
HYPERCO
$93.00If you're tuning a performance front end, spring rate is everything—and this Hyperco unit delivers 900 lb/in of consistent, predictable support to keep your chassis planted through hard cornering and acceleration. The 5.5-inch diameter and 9.5-inch...HYP18Z0900- SKU:
- HYP18Z0900
- Availability:
- Ships Same Business Day
- Weight:
- 8.53 LBS
- MFG Part #:
- 18Z0900
$93.00 -
Hyperco Front Spring 5.5in ID 9.5in Tall 18Z0850
HYPERCO
$93.00If you're building a front-end suspension that demands precise control and consistent performance, you need a spring rate engineered specifically for your platform's geometry and weight transfer characteristics. The Hyperco 18Z0850 delivers an 850 lb/in...HYP18Z0850- SKU:
- HYP18Z0850
- Availability:
- Ships Same Business Day
- Weight:
- 9.57 LBS
- MFG Part #:
- 18Z0850
$93.00 -
Hyperco Front Spring 5.5in ID 12in Tall 18Z0800-12
HYPERCO
$93.00If you're tuning your suspension for precision handling and consistent front-end geometry, spring rate is everything—and this Hyperco coil spring delivers the 800 lb/in stiffness needed for aggressive cornering without compromising ride quality. Built to...HYP18Z0800-12- SKU:
- HYP18Z0800-12
- Availability:
- Ships Same Business Day
- Weight:
- 9.30 LBS
- MFG Part #:
- 18Z0800-12
$93.00 -
Hyperco Front Spring 5.5in ID 11in Tall 18Z0800-11
HYPERCO
$93.00If you're building a precision front suspension setup, spring rate is everything—and 800 lb/in gives you the stiffness needed for consistent front-end geometry under load without over-softening your ride. The Hyperco 18Z0800-11 delivers a conventional...HYP18Z0800-11- SKU:
- HYP18Z0800-11
- Availability:
- Ships Same Business Day
- Weight:
- 8.87 LBS
- MFG Part #:
- 18Z0800-11
$93.00 -
Hyperco Front Spring 5.5in ID 9.5in Tall 18Z0800
HYPERCO
$93.00An 800 lb/in spring rate demands precision engineering, and the Hyperco Front Spring delivers exactly that with a conventional coil design built for repeatable suspension geometry. Whether you're dialing in front-end compliance for road racing or...HYP18Z0800- SKU:
- HYP18Z0800
- Availability:
- Ships Same Business Day
- Weight:
- 8.99 LBS
- MFG Part #:
- 18Z0800
$93.00 -
Hyperco Front Spring 5.5in ID 9.5in Tall 18Z0750
HYPERCO
$93.00If you're building a front-end suspension that demands precision geometry and consistent load support, a quality coil spring is non-negotiable. The Hyperco 18Z0750 delivers a 750 lb/in spring rate in a compact 5.5-inch ID package, making it ideal for...HYP18Z0750- SKU:
- HYP18Z0750
- Availability:
- Ships Same Business Day
- Weight:
- 8.48 LBS
- MFG Part #:
- 18Z0750
$93.00 -
Hyperco Front Spring 5.5in ID 9.5in Tall 18Z0700
HYPERCO
$93.00A properly tuned front spring is critical to consistent lap times and predictable handling geometry. The Hyperco 18Z0700 delivers a 700 lb/in spring rate in a compact 5.5-inch diameter package, making it ideal for space-constrained engine bays while...HYP18Z0700- SKU:
- HYP18Z0700
- Availability:
- Ships Same Business Day
- Weight:
- 8.59 LBS
- MFG Part #:
- 18Z0700
$93.00 -
Hyperco Front Spring 5.5in ID 9.5in Tall 18Z0650
HYPERCO
$93.00If you're tuning your suspension for precision handling and responsive feedback, you need a front spring that matches your chassis setup without compromise. The Hyperco 18Z0650 delivers a stiff 650 lb/in rate in a compact 9.5-inch package, making it...HYP18Z0650- SKU:
- HYP18Z0650
- Availability:
- Ships Same Business Day
- Weight:
- 6.51 LBS
- MFG Part #:
- 18Z0650
$93.00 -
Hyperco Front Spring 5.5in ID 9.5in Tall 18Z0600
HYPERCO
$93.00If you're building a dedicated track car or street performance machine, your suspension geometry is only as good as your spring rates. The Hyperco Front Spring delivers a crisp 600 lb/in rate that provides responsive body control without sacrificing ride...HYP18Z0600- SKU:
- HYP18Z0600
- Availability:
- Ships Same Business Day
- Weight:
- 6.69 LBS
- MFG Part #:
- 18Z0600
$93.00 -
Hyperco Front Spring 5.5in ID 9.5in Tall 18Z0550
HYPERCO
$93.00A properly tuned front spring is foundational to suspension geometry and vehicle handling dynamics. The Hyperco 18Z0550 delivers a midrange 550 lb/in spring rate that balances responsive cornering with acceptable ride comfort, making it ideal for...HYP18Z0550- SKU:
- HYP18Z0550
- Availability:
- Ships Same Business Day
- Weight:
- 6.37 LBS
- MFG Part #:
- 18Z0550
$93.00 -
Hyperco Front Spring 5.5in ID 9.5in Tall 18Z0500
HYPERCO
$93.00If you're building or tuning a front-end suspension system that demands precision geometry and predictable load characteristics, this Hyperco coil spring delivers the stiffness and consistency you need for competitive handling. At 500 lb/in, it's...HYP18Z0500- SKU:
- HYP18Z0500
- Availability:
- Ships Same Business Day
- Weight:
- 6.40 LBS
- MFG Part #:
- 18Z0500
$93.00 -
Hyperco Front Spring 5.5in ID 9.5in Tall 18Z0450
HYPERCO
$93.00If you're building a track-focused suspension setup or fine-tuning your ride height and chassis dynamics, a quality front coil spring is fundamental to achieving consistent performance. The Hyperco Front Spring delivers a controlled 450 lb/in rate in a...HYP18Z0450- SKU:
- HYP18Z0450
- Availability:
- Ships Same Business Day
- Weight:
- 5.95 LBS
- MFG Part #:
- 18Z0450
$93.00Qty in Cart: 0Quantity:Price:$93.00Subtotal: -
Hyperco Front Spring 5.5in ID 9.5in Tall 18Z0400
HYPERCO
$93.00If you're tuning your front suspension for better weight transfer and consistent handling, spring rate is everything—and a properly chosen coil spring is foundational to predictable lap times. The Hyperco Front Spring delivers a 400 lb/in rate in a...HYP18Z0400- SKU:
- HYP18Z0400
- Availability:
- Ships Same Business Day
- Weight:
- 5.81 LBS
- MFG Part #:
- 18Z0400
$93.00 -
Hyperco Front Spring 5.5in ID 9.5in Tall 18Z0350
HYPERCO
$93.00If you're tuning your suspension for track use or performance driving, front spring rate directly impacts your vehicle's weight transfer, turn-in response, and overall handling balance. The Hyperco 18Z0350 delivers a solid 350 lb/in rate in a compact 5...HYP18Z0350- SKU:
- HYP18Z0350
- Availability:
- Ships Same Business Day
- Weight:
- 5.46 LBS
- MFG Part #:
- 18Z0350
$93.00
