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 Coil Over Spring 2.25in ID 7in Tall 187A0400
HYPERCO
$102.00If you're building a track-focused suspension setup or upgrading your coil-over system, spring rate consistency is critical to predictable handling and lap-time performance. This Hyperco coil-over spring delivers a stiff 400 lb/in rate in a compact...HYP187A0400- SKU:
- HYP187A0400
- Availability:
- Ships Same Business Day
- Weight:
- 2.22 LBS
- MFG Part #:
- 187A0400
$102.00 -
Hyperco Coil Over Spring 2.25in ID 7in Tall 187A0250
HYPERCO
$102.00If you're building or upgrading a performance suspension system, spring rate consistency is non-negotiable—and that's exactly what this Hyperco coil-over delivers. At 250 lb/in, this spring provides the responsive, predictable compliance needed for both...HYP187A0250- SKU:
- HYP187A0250
- Availability:
- Ships Same Business Day
- Weight:
- 1.73 LBS
- MFG Part #:
- 187A0250
$102.00 -
Hyperco Coil Over Spring 2.5in ID 6in Tall 186B1200
HYPERCO
$86.00A properly tuned suspension starts with the right spring rate, and this Hyperco coil-over delivers the precision handling response serious racers and suspension builders demand. At 1200 lb/in, this spring rate strikes the balance between responsive...HYP186B1200- SKU:
- HYP186B1200
- Availability:
- Ships Same Business Day
- Weight:
- 4.18 LBS
- MFG Part #:
- 186B1200
$86.00 -
Hyperco Coil Over Spring 2.5in ID 6in Tall 186B1000
HYPERCO
$86.00A 1000 lb/in spring rate demands precision, and this Hyperco coil-over delivers the consistency needed for repeatable track performance and dialed-in suspension tuning. Whether you're building a dedicated race car or fine-tuning a high-performance street...HYP186B1000- SKU:
- HYP186B1000
- Availability:
- Ships Same Business Day
- Weight:
- 3.56 LBS
- MFG Part #:
- 186B1000
$86.00 -
Hyperco Coil Over Spring 2.5in ID 6in Tall 186B0900
HYPERCO
$86.00If you're building a high-performance suspension that demands precise load control and consistent response, the Hyperco Coil Over Spring delivers the stiffness needed for aggressive driving dynamics. With a robust 900 lb/in spring rate, this coil-over is...HYP186B0900- SKU:
- HYP186B0900
- Availability:
- Ships Same Business Day
- Weight:
- 4.52 LBS
- MFG Part #:
- 186B0900
$86.00 -
Hyperco Coil Over Spring 2.5in ID 6in Tall 186B0750
HYPERCO
$86.00If you're building a dedicated track car or street suspension that demands precise spring rates and adjustability, this Hyperco coil-over spring delivers the consistency and durability required for serious motorsports applications. The 750 lb/in rate...HYP186B0750- SKU:
- HYP186B0750
- Availability:
- Ships Same Business Day
- Weight:
- 2.83 LBS
- MFG Part #:
- 186B0750
$86.00 -
Hyperco Coil Over Spring 2.5in ID 6in Tall 186B0700
HYPERCO
$86.00A properly tuned coil-over spring is fundamental to suspension geometry and handling precision—this Hyperco unit delivers the stiffness needed for consistent corner balance without sacrificing ride quality. Whether you're dialing in a dedicated track car...HYP186B0700- SKU:
- HYP186B0700
- Availability:
- Ships Same Business Day
- Weight:
- 2.65 LBS
- MFG Part #:
- 186B0700
$86.00 -
Hyperco Coil Over Spring 2.5in ID 6in Tall 186B0650
HYPERCO
$86.00A properly matched coil-over spring is the foundation of responsive suspension tuning. The Hyperco 186B0650 delivers a firm 650 lb/in rate in a compact 6-inch package, ideal for performance builds where space is limited and precision control is...HYP186B0650- SKU:
- HYP186B0650
- Availability:
- Ships Same Business Day
- Weight:
- 1.70 LBS
- MFG Part #:
- 186B0650
$86.00 -
Hyperco Coil Over Spring 2.5in ID 6in Tall 186B0600
HYPERCO
$86.00A properly tuned suspension starts with the right spring rate, and the Hyperco 186B0600 delivers the stiffness you need for consistent handling without sacrificing ride quality. At 600 lb/in, this coil-over spring is engineered for vehicles requiring...HYP186B0600- SKU:
- HYP186B0600
- Availability:
- Ships Same Business Day
- Weight:
- 2.55 LBS
- MFG Part #:
- 186B0600
$86.00 -
Hyperco Coil Over Spring 2.5in ID 6in Tall 186B0550
HYPERCO
$86.00A properly tuned suspension starts with the right spring rate, and this Hyperco coil-over delivers predictable, linear support for track-focused builds and street performance alike. The 550 lb/in rate strikes a balance between responsive handling and...HYP186B0550- SKU:
- HYP186B0550
- Availability:
- Ships Same Business Day
- Weight:
- 2.53 LBS
- MFG Part #:
- 186B0550
$86.00 -
Hyperco Coil Over Spring 2.5in ID 6in Tall 186B0500
HYPERCO
$86.00If you're building a custom suspension setup or upgrading your coil-over system, spring rate consistency is critical to chassis balance and predictable handling. This Hyperco coil-over spring delivers a firm 500 lb/in rate in a compact 6-inch package,...HYP186B0500- SKU:
- HYP186B0500
- Availability:
- Ships Same Business Day
- Weight:
- 2.40 LBS
- MFG Part #:
- 186B0500
$86.00 -
Hyperco Coil Over Spring 2.5in ID 6in Tall 186B0450
HYPERCO
$86.00If you're building a custom suspension system or upgrading your coil-over setup, spring rate consistency is critical to achieving predictable handling and load transfer. The Hyperco 186B0450 delivers a stiff 450 lb/in rate in a compact 6-inch package,...HYP186B0450- SKU:
- HYP186B0450
- Availability:
- Ships Same Business Day
- Weight:
- 2.50 LBS
- MFG Part #:
- 186B0450
$86.00 -
Hyperco Coil Over Spring 2.5in ID 6in Tall 186B0400
HYPERCO
$86.00A quality coil-over spring is fundamental to dialing in your suspension's ride height and handling characteristics. The Hyperco 186B0400 delivers a stiff 400 lb/in spring rate in a compact 6-inch package, making it ideal for dedicated race cars and...HYP186B0400- SKU:
- HYP186B0400
- Availability:
- Ships Same Business Day
- Weight:
- 2.10 LBS
- MFG Part #:
- 186B0400
$86.00 -
Hyperco Coil Over Spring 2.5in ID 6in Tall 186B0350
HYPERCO
$86.00If you're building a competition-grade suspension system, spring rate is everything—and this Hyperco coil-over delivers the stiff, consistent response you need for precise handling and minimal deflection under load. At 350 lb/in, this spring strikes the...HYP186B0350- SKU:
- HYP186B0350
- Availability:
- Ships Same Business Day
- Weight:
- 1.94 LBS
- MFG Part #:
- 186B0350
$86.00 -
Hyperco Coil Over Spring 2.5in ID 6in Tall 186B0300
HYPERCO
$86.00If you're building a dedicated race car or upgrading your suspension geometry, spring rate consistency is non-negotiable. The Hyperco 186B0300 delivers a predictable 300 lb/in rate in a compact 6-inch package, giving you the precision tuning needed for...HYP186B0300- SKU:
- HYP186B0300
- Availability:
- Ships Same Business Day
- Weight:
- 1.80 LBS
- MFG Part #:
- 186B0300
$86.00 -
Hyperco Coil Over Spring 2.25in ID 6in Tall 186A0800
HYPERCO
$102.00If you're building a performance suspension that demands precision tuning and consistent response, coil-over springs are non-negotiable. The Hyperco 186A0800 delivers a stiff 800 lb/in spring rate in a compact 6-inch package, making it ideal for road...HYP186A0800- SKU:
- HYP186A0800
- Availability:
- Ships Same Business Day
- Weight:
- 2.65 LBS
- MFG Part #:
- 186A0800
$102.00 -
Hyperco Coil Over Spring 2.25in ID 6in Tall 186A0750
HYPERCO
$102.00If you're tuning a high-performance suspension system, spring rate is everything—and this Hyperco coil-over delivers a stiff 750 lb/in rate for precise load control and minimal body roll during aggressive cornering. The 2.25-inch inner diameter and...HYP186A0750- SKU:
- HYP186A0750
- Availability:
- Ships Same Business Day
- Weight:
- 2.63 LBS
- MFG Part #:
- 186A0750
$102.00Qty in Cart: 0Quantity:Price:$102.00Subtotal: -
Hyperco Coil Over Spring 2.25in ID 6in Tall 186A0650
HYPERCO
$102.00If you're building a performance suspension system that demands precise load control and consistent handling characteristics, a coil-over spring with a dedicated spring rate is non-negotiable. The Hyperco 186A0650 delivers a 650 lb/in rate in a compact...HYP186A0650- SKU:
- HYP186A0650
- Availability:
- Ships Same Business Day
- Weight:
- 2.25 LBS
- MFG Part #:
- 186A0650
$102.00 -
Hyperco Coil Over Spring 2.25in ID 6in Tall 186A0600
HYPERCO
$102.00A coil-over spring with a 600 lb/in rate delivers the responsive suspension tuning that separates competitive setups from stock compromises. Whether you're fine-tuning your track car's handling balance or building a custom suspension geometry, this...HYP186A0600- SKU:
- HYP186A0600
- Availability:
- Ships Same Business Day
- Weight:
- 1.85 LBS
- MFG Part #:
- 186A0600
$102.00Qty in Cart: 0Quantity:Price:$102.00Subtotal: -
Hyperco Coil Over Spring 2.25in ID 6in Tall 186A0550
HYPERCO
$102.00If you're building a suspension system that demands precision tuning, the Hyperco Coil Over Spring delivers the consistent, predictable spring rates that separate winning setups from guesswork. With a 550 lb/in rate and compact 6-inch height, this spring...HYP186A0550- SKU:
- HYP186A0550
- Availability:
- Ships Same Business Day
- Weight:
- 2.23 LBS
- MFG Part #:
- 186A0550
$102.00
