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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Spring 14in Coil-Over 2.5in ID 1400.250.0100
EIBACH
$90.00A properly tuned suspension starts with the right spring rate, and this 14-inch coil-over delivers predictable, linear response without excessive stiffness. At 100 lb/in, it's engineered for street-driven performance builds and bracket racing...EIB1400.250.0100- SKU:
- EIB1400.250.0100
- Availability:
- Ships Same Business Day
- Weight:
- 3.48 LBS
$90.00 -
Spring 13in Rear 5in OD 1300.500.0600
EIBACH
$90.00A 600 lb/in spring rate gives you the responsive handling and load support needed for serious rear-end performance, whether you're tuning a street car or dialing in a race setup. The 13-inch length and 5-inch OD make this a direct fit for applications...EIB1300.500.0600- SKU:
- EIB1300.500.0600
- Availability:
- Ships Same Business Day
- Weight:
- 11.34 LBS
$90.00 -
Spring 13in Rear 5in OD 1300.500.0500
EIBACH
$90.00A properly matched rear spring is critical for maintaining suspension geometry and load transfer during acceleration and braking. This 500 lb/in coil spring delivers the stiffness needed for consistent chassis dynamics without compromising ride quality,...EIB1300.500.0500- SKU:
- EIB1300.500.0500
- Availability:
- Ships Same Business Day
- Weight:
- 9.31 LBS
$90.00 -
Spring 13in Rear 5in OD 1300.500.0400
EIBACH
$90.00A properly matched rear spring is critical for maintaining suspension geometry and handling balance under load and acceleration. This 400 lb/in coil spring delivers predictable load support for rear-end applications, making it an ideal replacement or...EIB1300.500.0400- SKU:
- EIB1300.500.0400
- Availability:
- Ships Same Business Day
- Weight:
- 8.16 LBS
$90.00 -
Spring 13in Rear 5in OD 1300.500.0325
EIBACH
$90.00A properly tuned suspension requires springs engineered to your vehicle's weight distribution and intended use—this 325 lb/in rear spring delivers the responsive handling and consistent ride height that separates a dialed-in platform from a compromise...EIB1300.500.0325- SKU:
- EIB1300.500.0325
- Availability:
- Ships Same Business Day
- Weight:
- 7.50 LBS
$90.00 -
Spring 13in Rear 5in OD 1300.500.0300
EIBACH
$90.00A properly tuned rear suspension starts with the right spring rate, and this 300 lb/in coil spring delivers consistent load support for rear-end geometry and handling balance. Whether you're fine-tuning a road course setup or dialing in a drag...EIB1300.500.0300- SKU:
- EIB1300.500.0300
- Availability:
- Ships Same Business Day
- Weight:
- 7.28 LBS
$90.00 -
Spring 13in Rear 5in OD 1300.500.0275
EIBACH
$90.00Whether you're fine-tuning your rear suspension geometry or replacing worn springs that have lost their rate, this 13-inch coil spring delivers consistent performance with a solid 275 lb/in spring rate. The 5-inch OD design fits common rear suspension...EIB1300.500.0275- SKU:
- EIB1300.500.0275
- Availability:
- Ships Same Business Day
- Weight:
- 7.53 LBS
$90.00 -
Spring 13in Rear 5in OD 1300.500.0250
EIBACH
$90.00A properly matched rear spring is fundamental to chassis balance and handling response. This 250 lb/in coil spring delivers consistent suspension geometry and load support for vehicles requiring a stiffer rear setup without sacrificing ride quality...EIB1300.500.0250- SKU:
- EIB1300.500.0250
- Availability:
- Ships Same Business Day
- Weight:
- 6.61 LBS
$90.00 -
Spring 13in Rear 5in OD 1300.500.0225
EIBACH
$90.00A properly-tuned rear suspension starts with the right spring rate, and this 225 lb/in coil spring delivers predictable, linear load support for rear-end geometry control. Whether you're dialing in a road course setup or fine-tuning weight transfer on...EIB1300.500.0225- SKU:
- EIB1300.500.0225
- Availability:
- Ships Same Business Day
- Weight:
- 6.11 LBS
$90.00 -
Spring 13in Rear 5in OD 1300.500.0200
EIBACH
$90.00A properly tuned rear suspension starts with the right spring rate—and at 200 lb/in, this 13-inch coil spring delivers the linear support your chassis needs for consistent handling and predictable weight transfer. Whether you're fine-tuning a track setup...EIB1300.500.0200- SKU:
- EIB1300.500.0200
- Availability:
- Ships Same Business Day
- Weight:
- 5.35 LBS
$90.00 -
Spring 13in Rear 5in OD 1300.500.0175
EIBACH
$90.00A properly tuned rear suspension starts with the right spring rate, and this 175 lb/in coil spring delivers the compliance and support your rear end needs for consistent handling and reduced chassis flex. Whether you're fine-tuning a dedicated track car...EIB1300.500.0175- SKU:
- EIB1300.500.0175
- Availability:
- Ships Same Business Day
- Weight:
- 5.69 LBS
$90.00 -
Spring 13in Rear 5in OD 1300.500.0150
EIBACH
$90.00A properly-tuned rear suspension starts with the right spring rate, and this 150 lb/in coil spring delivers the predictable, linear compliance needed for consistent handling and load transfer. Whether you're tuning a street-driven car or dialing in a...EIB1300.500.0150- SKU:
- EIB1300.500.0150
- Availability:
- Ships Same Business Day
- Weight:
- 4.76 LBS
$90.00 -
Spring 12in Coil-Over 3.0in ID 1200.300.0250S
EIBACH
$109.00A properly tuned suspension starts with the right spring rate, and this 250 lb/in coil-over delivers the compliance you need for consistent performance without sacrificing control. Whether you're dialing in a track car, building a street/strip hybrid, or...EIB1200.300.0250S- SKU:
- EIB1200.300.0250S
- Availability:
- Ships Same Business Day
- Weight:
- 4.91 LBS
$109.00 -
Spring 12in Coil-Over 2.5in ID Ext Travel 1200.2530.0200
EIBACH
$99.00A quality coil-over spring is fundamental to any serious suspension build, and this 12-inch unit delivers the precision damping characteristics your setup demands. With a 2.5-inch inner diameter and extended travel capability, it's engineered to handle...EIB1200.2530.0200- SKU:
- EIB1200.2530.0200
- Availability:
- Ships Same Business Day
- Weight:
- 3.94 LBS
$99.00 -
Spring 12in Coil-Over 2.5in ID Ext Travel 1200.2530.0175
EIBACH
$99.00A quality coil-over spring is fundamental to building a suspension system that handles consistently under load. This 12-inch XT barrel coil-over delivers the adjustability and durability needed for both road course and drag strip applications, whether...EIB1200.2530.0175- SKU:
- EIB1200.2530.0175
- Availability:
- Ships Same Business Day
- Weight:
- 3.89 LBS
$99.00 -
Spring 12in Coil-Over 2.5in ID Ext Travel 1200.2530.0150
EIBACH
$99.00Precision suspension tuning demands a coil-over spring that delivers consistent damping and travel without compromise. This 12-inch coil-over spring is engineered for extended compression and rebound cycles, making it ideal for road racing, autocross,...EIB1200.2530.0150- SKU:
- EIB1200.2530.0150
- Availability:
- Ships Same Business Day
- Weight:
- 3.49 LBS
$99.00 -
Spring 12in Coil-Over 2.5in ID Ext Travel 1200.2530.0100
EIBACH
$99.00Coil-over suspension demands a spring that delivers consistent dampening across full travel while maintaining structural integrity under extreme loads. This 12-inch XT Barrel coil-over spring is engineered for precision fitment in custom and race...EIB1200.2530.0100- SKU:
- EIB1200.2530.0100
- Availability:
- Ships Same Business Day
- Weight:
- 3.40 LBS
$99.00 -
Spring 12in Coil-Over 2.5in ID 1200.250.0900S
EIBACH
$87.00A properly tuned coil-over spring is fundamental to chassis control and consistent lap times. This 900 lb/in spring delivers the stiffness needed for precision handling without compromising ride quality, making it ideal for both road racing and...EIB1200.250.0900S- SKU:
- EIB1200.250.0900S
- Availability:
- Ships Same Business Day
- Weight:
- 9.08 LBS
$87.00 -
Spring 12in Coil-Over 2.5in ID 1200.250.0800S
EIBACH
$87.00If you're building a performance suspension setup, spring rate directly determines how your vehicle responds to input—and 800 lb/in delivers the stiffness needed for track-focused applications without sacrificing street usability. This 12-inch coil-over...EIB1200.250.0800S- SKU:
- EIB1200.250.0800S
- Availability:
- Ships Same Business Day
- Weight:
- 7.84 LBS
$87.00 -
Spring 12in Coil-Over 2.5in ID 1200.250.0600S
EIBACH
$87.00A quality coil-over spring is the foundation of responsive suspension tuning—this 600 lb/in rate delivers the stiffness needed for track-focused setups without sacrificing street drivability. Whether you're dialing in lap times or building a dedicated...EIB1200.250.0600S- SKU:
- EIB1200.250.0600S
- Availability:
- Ships Same Business Day
- Weight:
- 7.25 LBS
$87.00
