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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16in C/O Spring Platinum 2.50in ID P1600.2530.0150
EIBACH
$145.00If you're building a coil-over suspension system, spring rate consistency is everything—and this 16-inch Platinum coil-over spring delivers exactly that. The 150 lb/in rate provides a balanced foundation for both street and track applications, while the...EIBP1600.2530.0150- SKU:
- EIBP1600.2530.0150
- Availability:
- Ships Same Business Day
- Weight:
- 5.50 LBS
$145.00 -
16in C/O Spring Platinum 2.50in ID P1600.2530.0125
EIBACH
$145.00If you're building a coil-over suspension system, spring rate consistency directly impacts handling precision and ride quality. This 16-inch Platinum coil-over spring delivers a moderate 125 lb/in rate—ideal for street-performance and road-racing...EIBP1600.2530.0125- SKU:
- EIBP1600.2530.0125
- Availability:
- Ships Same Business Day
- Weight:
- 4.45 LBS
$145.00 -
16in C/O Spring Platinum 2.50in ID P1600.2530.0100
EIBACH
$145.00A coil-over suspension demands a spring that can handle precise damping control without compromising ride quality or bottoming out under load. This 16-inch Platinum coil-over spring delivers a 100 lb/in rate—ideal for street-performance and light track...EIBP1600.2530.0100- SKU:
- EIBP1600.2530.0100
- Availability:
- Ships Same Business Day
- Weight:
- 4.10 LBS
$145.00 -
14in C/O Spring Platinum 2.50in ID P1400.2530.0225
EIBACH
$140.00If you're building a coil-over suspension system, spring rate consistency directly impacts your car's handling balance and ride quality. The 14in C/O Spring Platinum delivers a predictable 225 lb/in rate across the entire stroke, eliminating the...EIBP1400.2530.0225- SKU:
- EIBP1400.2530.0225
- Availability:
- Ships Same Business Day
- Weight:
- 5.74 LBS
$140.00 -
12in C/O Spring Platinum 2.50in ID P1200.2530.0175
EIBACH
$130.00If you're building a coil-over suspension system, spring rate selection directly impacts how your chassis responds under load and during transitions. This 12-inch Platinum spring delivers a 175 lb/in rate—ideal for street-tuned performance builds and...EIBP1200.2530.0175- SKU:
- EIBP1200.2530.0175
- Availability:
- Ships Same Business Day
- Weight:
- 3.89 LBS
$130.00 -
12in C/O Spring Platinum 2.50in ID P1200.2530.0100
EIBACH
$130.00A properly tuned coil-over spring is fundamental to suspension geometry and ride quality—this 12-inch platinum-rated spring delivers consistent 100 lb/in rate across the full stroke, critical for maintaining predictable chassis behavior under load...EIBP1200.2530.0100- SKU:
- EIBP1200.2530.0100
- Availability:
- Ships Same Business Day
- Weight:
- 5.28 LBS
$130.00 -
10in C/O Spring Platinum 2.50in ID P1000.2530.0500
EIBACH
$145.00If you're building a coil-over suspension system, spring rate and bore compatibility are non-negotiable—they directly affect ride quality, handling response, and chassis stability. This 10-inch Platinum coil-over spring delivers a 500 lb/in rate with a...EIBP1000.2530.0500- SKU:
- EIBP1000.2530.0500
- Availability:
- Ships Same Business Day
- Weight:
- 5.10 LBS
$145.00Qty in Cart: 0Quantity:Price:$145.00Subtotal: -
Bump Spring Cup 1.63in ID x .625in Shaft BSC163.625
EIBACH
$42.00A quality bump spring cup is critical for maintaining consistent suspension geometry and preventing spring bind during high-load compression events. This CNC-machined aluminum component ensures precise load transfer and reliability under race conditions,...EIBBSC163.625- SKU:
- EIBBSC163.625
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
$42.00Qty in Cart: 0Quantity:Price:$42.00Subtotal: -
Bump Spring Cup 1.63in ID x .500in Shaft BSC163.500
EIBACH
$42.00Precision suspension tuning demands components that can withstand repeated cycles without deflection or failure. This bump spring cup maintains consistent spring preload and ride height by providing a stable seating surface for your coilover or shock...EIBBSC163.500- SKU:
- EIBBSC163.500
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
$42.00 -
10in Coil Over Spring 3.0in ID Silver 1000.300.0300S
EIBACH
$102.00Precision suspension tuning demands a spring that delivers consistent, predictable performance lap after lap. This 10-inch coil-over spring offers a 300 lb/in rate ideal for road course applications, street performance builds, and lightweight race...EIB1000.300.0300S- SKU:
- EIB1000.300.0300S
- Availability:
- Ships Same Business Day
- Weight:
- 4.67 LBS
$102.00 -
Bump Spring 2IN O.D. x 2.25in 150lb 0225.200.0150
EIBACH
$90.00Fine-tuning suspension geometry requires precision components that respond predictably under load. This 150lb bump spring delivers consistent support for coil-over applications, preventing bottoming while maintaining the progressive rate your setup...EIB0225.200.0150- SKU:
- EIB0225.200.0150
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
$90.00 -
Bump Spring 2IN O.D. x 2.25in 100lb 0225.200.0100
EIBACH
$90.00Bump springs are essential for fine-tuning suspension travel and preventing bottoming-out during aggressive driving or off-road conditions. This 100 lb/in spring rate offers progressive resistance that absorbs impact energy without transmitting harsh...EIB0225.200.0100- SKU:
- EIB0225.200.0100
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
$90.00 -
Bump Spring 2IN O.D. x 2.25in 75lb 0225.200.0075
EIBACH
$90.00Bump springs are critical for controlling suspension travel and preventing bottoming-out during aggressive driving or track use. This 75 lb/in coil-over spring provides progressive support while maintaining a compact profile, making it ideal for vehicles...EIB0225.200.0075- SKU:
- EIB0225.200.0075
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
$90.00 -
Bump Spring 2IN O.D. x 2.25in 50lb 0225.200.0050
EIBACH
$90.00Bump springs are essential for controlling suspension travel and preventing bottoming-out during aggressive driving or rough terrain. This 50 lb/in coil-over spring delivers responsive handling characteristics while maintaining ride comfort, making it...EIB0225.200.0050- SKU:
- EIB0225.200.0050
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
$90.00 -
Conv. Spring Rear 5.0in ID 16in Tall 175lb DRA-SR16.175
DRACO RACING
$245.00A properly tuned suspension starts with the right spring rate, and this 175 lb/in conventional coil spring delivers the linear support your rear end needs for consistent handling and predictable weight transfer. Whether you're fine-tuning a street car or...DRSDRA.SR16.175- SKU:
- DRSDRA.SR16.175
- Availability:
- Ships Same Business Day
- Weight:
- 4.56 LBS
$245.00 -
Conv. Spring Rear 5.0in ID 16in Tall 150lb DRA-SR16.150
DRACO RACING
$245.00A properly matched conventional coil spring is fundamental to consistent suspension geometry and predictable handling characteristics. This 150 lb/in spring rate delivers the responsiveness needed for precision tuning without sacrificing ride control,...DRSDRA.SR16.150- SKU:
- DRSDRA.SR16.150
- Availability:
- Ships Same Business Day
- Weight:
- 4.60 LBS
$245.00 -
Conv. Spring Rear 5.0in ID 16in Tall 125lb DRA-SR16.125
DRACO RACING
$245.00A quality coil spring is foundational to your suspension's ability to handle consistent load and maintain consistent ride height under racing conditions. This 125 lb/in conventional spring delivers predictable, linear spring rates that work well in...DRSDRA.SR16.125- SKU:
- DRSDRA.SR16.125
- Availability:
- Ships Same Business Day
- Weight:
- 5.72 LBS
$245.00 -
Conv. Spring Rear 5.0in ID 16in Tall 100lb DRA-SR16.100
DRACO RACING
$245.00A properly tuned suspension starts with the right spring rate for your application. This conventional coil spring delivers a firm 100 lb/in rate, making it ideal for front-end support in street performance builds and moderate track duty. With a 16-inch...DRSDRA.SR16.100- SKU:
- DRSDRA.SR16.100
- Availability:
- Ships Same Business Day
- Weight:
- 6.00 LBS
$245.00 -
Conv. Spring Front 5.5in ID 10.5in Tall DRA-LM105.300
DRACO RACING
$187.95A quality front coil spring is fundamental to your suspension's ability to manage load, maintain geometry, and deliver consistent handling lap after lap. This conventional spring offers a moderate 300 lb/in rate—ideal for street-driven performance cars...DRSDRA.LM10.5.300- SKU:
- DRSDRA.LM10.5.300
- Availability:
- Ships Same Business Day
- Weight:
- 5.26 LBS
$187.95 -
Coilover Spring 1.875in ID 8in Tall 300lb DRA-L8.1.875.300
DRACO RACING
$85.00A 300 lb/in spring rate gives you the responsiveness and control needed for track-focused suspension tuning without sacrificing street drivability. The 1.875-inch inner diameter and 8-inch height integrate seamlessly into coilover setups, allowing you to...DRSDRA.L8.1.875.300- SKU:
- DRSDRA.L8.1.875.300
- Availability:
- Ships Same Business Day
- Weight:
- 4.00 LBS
$85.00
