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 2.5in ID 7in Tall 187B0750
HYPERCO
$86.00If you're building or tuning a race-focused suspension system, spring rate selection is critical to your setup's performance—and a 750 lb/in rate gives you the stiffness needed for responsive handling without sacrificing adjustability. The Hyperco Coil...HYP187B0750- SKU:
- HYP187B0750
- Availability:
- Ships Same Business Day
- Weight:
- 3.90 LBS
- MFG Part #:
- 187B0750
$86.00 -
Hyperco Coil Over Spring 2.5in ID 7in Tall 187B0700
HYPERCO
$86.00If you're tuning a dedicated race car or high-performance street machine, suspension geometry demands precision—and that starts with the right spring rate. This Hyperco coil-over spring delivers 700 lb/in of progressive support in a compact 7-inch...HYP187B0700- SKU:
- HYP187B0700
- Availability:
- Ships Same Business Day
- Weight:
- 3.39 LBS
- MFG Part #:
- 187B0700
$86.00 -
Hyperco Coil Over Spring 2.5in ID 7in Tall 187B0650
HYPERCO
$86.00If you're building a custom suspension setup or upgrading your coil-over system, spring rate is everything—and 650 lb/in gives you the responsive, controlled handling that separates dialed-in builds from the rest. This Hyperco spring delivers consistent...HYP187B0650- SKU:
- HYP187B0650
- Availability:
- Ships Same Business Day
- Weight:
- 3.40 LBS
- MFG Part #:
- 187B0650
$86.00 -
Hyperco Coil Over Spring 2.5in ID 7in Tall 187B0600
HYPERCO
$86.00Coil-over suspension systems demand springs engineered for precision damping and consistent load support—this Hyperco unit delivers exactly that with a 600 lb/in rate designed for track-focused setups and performance applications. Whether you're...HYP187B0600- SKU:
- HYP187B0600
- Availability:
- Ships Same Business Day
- Weight:
- 3.16 LBS
- MFG Part #:
- 187B0600
$86.00 -
Hyperco Coil Over Spring 2.5in ID 7in Tall 187B0550
HYPERCO
$86.00If you're tuning a coil-over suspension setup, spring rate directly controls how your chassis responds under load—and this 550 lb/in Hyperco spring delivers the stiffness needed for precision handling without sacrificing adjustability. Built to tight...HYP187B0550- SKU:
- HYP187B0550
- Availability:
- Ships Same Business Day
- Weight:
- 2.50 LBS
- MFG Part #:
- 187B0550
$86.00 -
Hyperco Coil Over Spring 2.5in ID 7in Tall 187B0500
HYPERCO
$86.00If you're building a custom suspension setup or upgrading your coil-over system, spring rate is everything—and 500 lb/in delivers the progressive support needed for both street-driven and track-focused applications. This Hyperco spring pairs predictable...HYP187B0500- SKU:
- HYP187B0500
- Availability:
- Ships Same Business Day
- Weight:
- 2.85 LBS
- MFG Part #:
- 187B0500
$86.00Qty in Cart: 0Quantity:Price:$86.00Subtotal: -
Hyperco Coil Over Spring 2.5in ID 7in Tall 187B0450
HYPERCO
$86.00A coil-over suspension demands a spring that matches your setup's geometry and performance targets—this Hyperco unit delivers the 450 lb/in rate and compact 7-inch profile needed for tight-clearance racing applications. Whether you're tuning front or...HYP187B0450- SKU:
- HYP187B0450
- Availability:
- Ships Same Business Day
- Weight:
- 2.82 LBS
- MFG Part #:
- 187B0450
$86.00 -
Hyperco Coil Over Spring 2.5in ID 7in Tall 187B0400
HYPERCO
$86.00If you're building a performance suspension setup, spring rate is everything—and this Hyperco coil-over delivers the precision tuning you need. A 400 lb/in rate gives you the stiffness for responsive handling without sacrificing composure over bumps,...HYP187B0400- SKU:
- HYP187B0400
- Availability:
- Ships Same Business Day
- Weight:
- 2.25 LBS
- MFG Part #:
- 187B0400
$86.00 -
Hyperco Coil Over Spring 2.5in ID 7in Tall 187B0375
HYPERCO
$86.00Fine-tuning your suspension geometry requires a spring rate that matches your chassis setup precisely—and this Hyperco coil-over delivers exactly 375 lb/in of progressive damping control. Whether you're dialing in a road course setup or fine-tuning bump...HYP187B0375- SKU:
- HYP187B0375
- Availability:
- Ships Same Business Day
- Weight:
- 2.25 LBS
- MFG Part #:
- 187B0375
$86.00 -
Hyperco Coil Over Spring 2.5in ID 7in Tall 187B0350
HYPERCO
$86.00Precision suspension tuning starts with the right spring rate, and Hyperco's coil-over springs deliver the stiffness and consistency your setup demands. Whether you're dialing in a road course or drag racing application, a 350 lb/in rate provides the...HYP187B0350- SKU:
- HYP187B0350
- Availability:
- Ships Same Business Day
- Weight:
- 2.25 LBS
- MFG Part #:
- 187B0350
$86.00 -
Hyperco Coil Over Spring 2.5in ID 7in Tall 187B0300
HYPERCO
$86.00If you're building a performance suspension that demands precision and reliability, a quality coil-over spring is non-negotiable. The Hyperco 187B0300 delivers a stiff 300 lb/in spring rate in a compact 7-inch package, making it ideal for road racing,...HYP187B0300- SKU:
- HYP187B0300
- Availability:
- Ships Same Business Day
- Weight:
- 2.00 LBS
- MFG Part #:
- 187B0300
$86.00 -
Hyperco Coil Over Spring 2.5in ID 7in Tall 187B0225
HYPERCO
$86.00A precisely-tuned coil-over spring is the foundation of responsive suspension geometry, and the Hyperco 187B0225 delivers the consistency your setup demands. With a firm 225 lb/in rate, this spring maintains predictable spring rates across compression...HYP187B0225- SKU:
- HYP187B0225
- Availability:
- Ships Same Business Day
- Weight:
- 1.94 LBS
- MFG Part #:
- 187B0225
$86.00Qty in Cart: 0Quantity:Price:$86.00Subtotal: -
Hyperco Coil Over Spring 2.5in ID 7in Tall 187B0200
HYPERCO
$86.00Precision suspension tuning demands a spring that performs consistently lap after lap, and the Hyperco 2.5in Coil-Over delivers exactly that with a 200 lb/in rate engineered for responsive handling and predictable load control. Whether you're dialing in...HYP187B0200- SKU:
- HYP187B0200
- Availability:
- Ships Same Business Day
- Weight:
- 1.70 LBS
- MFG Part #:
- 187B0200
$86.00 -
Hyperco Coil Over Spring 2.5in ID 7in Tall 187B0175
HYPERCO
$86.00Fine-tuning your suspension geometry requires a spring rate that matches your chassis dynamics and driving conditions—and the Hyperco 187B0175 delivers precisely that control. At 175 lb/in, this coil-over spring strikes the balance between responsive...HYP187B0175- SKU:
- HYP187B0175
- Availability:
- Ships Same Business Day
- Weight:
- 1.47 LBS
- MFG Part #:
- 187B0175
$86.00 -
Hyperco Coil Over Spring 2.5in ID 7in Tall 187B0150
HYPERCO
$86.00If you're building a performance suspension that demands precise control and predictable spring rates, the Hyperco Coil Over Spring delivers the consistency and durability that separates competitive setups from the rest. With a 150 lb/in rate and compact...HYP187B0150- SKU:
- HYP187B0150
- Availability:
- Ships Same Business Day
- Weight:
- 1.50 LBS
- MFG Part #:
- 187B0150
$86.00 -
Hyperco Coil Over Spring 2.5in ID 7in Tall 187B0125
HYPERCO
$86.00Precision suspension tuning demands a spring that matches your exact setup requirements—and this Hyperco coil-over delivers consistent, predictable rates without compromise. At 125 lb/in, this spring strikes the balance between responsive handling and...HYP187B0125- SKU:
- HYP187B0125
- Availability:
- Ships Same Business Day
- Weight:
- 1.35 LBS
- MFG Part #:
- 187B0125
$86.00 -
Hyperco Coil Over Spring 2.5in ID 7in Tall 187B0100
HYPERCO
$86.00Tuning your suspension geometry and ride height requires a spring that matches your coil-over setup precisely—this Hyperco unit delivers the stiffness you need without compromise. A 100 lb/in rate strikes the balance between supporting load and...HYP187B0100- SKU:
- HYP187B0100
- Availability:
- Ships Same Business Day
- Weight:
- 1.20 LBS
- MFG Part #:
- 187B0100
$86.00 -
Hyperco Coil Over Spring 2.25in ID 7in Tall 187A0800
HYPERCO
$102.00If you're building a high-performance suspension system, spring rate is everything—and this Hyperco coil-over delivers the stiffness you need for precise handling and minimal body roll. At 800 lb/in, it's engineered for serious track work and street...HYP187A0800- SKU:
- HYP187A0800
- Availability:
- Ships Same Business Day
- Weight:
- 3.45 LBS
- MFG Part #:
- 187A0800
$102.00 -
Hyperco Coil Over Spring 2.25in ID 7in Tall 187A0700
HYPERCO
$102.00A properly tuned coil-over spring is critical for dial-in suspension geometry and consistent handling characteristics on the track or street. This Hyperco spring delivers a stiff 700 lb/in rate in a compact 7-inch package, making it ideal for custom...HYP187A0700- SKU:
- HYP187A0700
- Availability:
- Ships Same Business Day
- Weight:
- 3.05 LBS
- MFG Part #:
- 187A0700
$102.00 -
Hyperco Coil Over Spring 2.25in ID 7in Tall 187A0550
HYPERCO
$102.00A properly matched coil-over spring is critical for suspension tuning—this Hyperco unit delivers precise spring rates without compromise. Whether you're dialing in a road course setup or fine-tuning weight transfer on the track, a 550 lb/in rate gives...HYP187A0550- SKU:
- HYP187A0550
- Availability:
- Ships Same Business Day
- Weight:
- 1.70 LBS
- MFG Part #:
- 187A0550
$102.00
