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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Spacer Coupling 2.36in ID SPACER60
EIBACH
$30.00Precision clutch engagement starts with proper spring control, and this spacer coupling ensures consistent takeup pressure across all RPM ranges. Whether you're tuning a street machine or dialing in a dedicated race car, maintaining exact spring preload...EIBSPACER60- SKU:
- EIBSPACER60
- Availability:
- Ships Same Business Day
- Weight:
- 0.07 LBS
$30.00 -
Spring 9.5in x 5in x 650 Platinum Front PF0950.500.0650
EIBACH
$135.00A 650 lb/in spring rate delivers the responsive suspension geometry you need for consistent cornering and predictable weight transfer during hard acceleration and braking. The Platinum Modified construction and silver powder coat ensure durability under...EIBPF0950.500.0650- SKU:
- EIBPF0950.500.0650
- Availability:
- Ships Same Business Day
- Weight:
- 8.06 LBS
$135.00 -
Spring 9.5in x 5in x 575 Platinum Front PF0950.500.0575
EIBACH
$135.00If you're building a competition-grade suspension setup, spring rate is everything—and this 575 lb/in coil spring delivers the precise load curve needed for consistent handling and minimal deflection under lateral g-forces. The Platinum Modified design...EIBPF0950.500.0575- SKU:
- EIBPF0950.500.0575
- Availability:
- Ships Same Business Day
- Weight:
- 7.16 LBS
$135.00 -
Spring 9.5in x 5in x 450 Platinum Front PF0950.500.0450
EIBACH
$135.00A 450 lb/in spring rate demands precision engineering, and the Platinum Modified coil spring delivers exactly that. Whether you're tuning front-end geometry for a dedicated track car or replacing a worn spring on your competition build, this 9.5-inch...EIBPF0950.500.0450- SKU:
- EIBPF0950.500.0450
- Availability:
- Ships Same Business Day
- Weight:
- 5.29 LBS
$135.00 -
Spring 9.5in x 5in x 400 Platinum Front PF0950.500.0400
EIBACH
$135.00A properly tuned front suspension starts with the right spring rate, and this 400 lb/in Platinum coil spring delivers the responsive, consistent support needed for precision handling and load management. Whether you're fine-tuning a road course setup or...EIBPF0950.500.0400- SKU:
- EIBPF0950.500.0400
- Availability:
- Ships Same Business Day
- Weight:
- 4.62 LBS
$135.00 -
Spring Helper 1.88in ID HELPER188
EIBACH
$55.00Spring helpers are essential for managing suspension sag and maintaining consistent ride height under heavy loads or aggressive driving. This 1.88" ID helper spring provides reliable load support without requiring suspension modifications, making it...EIBHELPER188- SKU:
- EIBHELPER188
- Availability:
- Ships Same Business Day
- Weight:
- 0.72 LBS
$55.00 -
Spring Bags 16in x 5in ESB16.500
EIBACH
$50.00Eibach shock covers protect your suspension investment from road salt, debris, and UV damage that accelerates wear and corrosion. Whether you're running a dedicated track car or a street-driven performance build, these spring bags shield critical...EIBESB16.500- SKU:
- EIBESB16.500
- Availability:
- Ships Same Business Day
- Weight:
- 0.33 LBS
$50.00 -
Spring Bags 16in x 3in ESB16.300
EIBACH
$50.00Protect your Eibach shocks from dirt, UV damage, and corrosion with purpose-built spring bags engineered to extend component lifespan. These elastic-ended covers slide over your coil-over barrels for effortless installation—no tools or fabrication...EIBESB16.300- SKU:
- EIBESB16.300
- Availability:
- Ships Same Business Day
- Weight:
- 0.34 LBS
$50.00 -
Spring Bags 16in x 2.5in ESB16.250
EIBACH
$50.00Protect your Eibach shock investment from dust, debris, and UV damage with purpose-built spring bags designed to extend component lifespan and maintain consistent performance. Whether you're storing shocks between seasons or running them on the street,...EIBESB16.250- SKU:
- EIBESB16.250
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
$50.00 -
Spring Bags 14in x 5in ESB14.500
EIBACH
$50.00Eibach spring bags protect your shocks from dirt, debris, and UV damage while maintaining clean aesthetics on your suspension setup. Whether you're running a track car or a street machine, these covers extend shock life and preserve the finish on premium...EIBESB14.500- SKU:
- EIBESB14.500
- Availability:
- Ships Same Business Day
- Weight:
- 0.33 LBS
$50.00 -
Spring Bags 14in x 3in ESB14.300
EIBACH
$50.00Protect your Eibach shock absorbers from dust, debris, and UV exposure with purpose-built spring bags designed for precision fitment. These elastic-ended covers prevent premature wear on your suspension components while maintaining easy access for...EIBESB14.300- SKU:
- EIBESB14.300
- Availability:
- Ships Same Business Day
- Weight:
- 0.32 LBS
$50.00 -
Spring Bags 14in x 2.5in ESB14.250
EIBACH
$50.00Protect your Eibach shocks from dust, debris, and UV exposure that can compromise seal integrity and performance longevity. These spring bags maintain consistent shock function by creating a barrier against environmental contaminants while allowing full...EIBESB14.250- SKU:
- EIBESB14.250
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
$50.00 -
Spring Bags 12in x 3in ESB12.300
EIBACH
$50.00Eibach shock covers protect your suspension components from dirt, debris, and UV damage while maintaining a clean appearance in the engine bay or suspension setup. These spring bags are essential for extending shock longevity and preventing premature...EIBESB12.300- SKU:
- EIBESB12.300
- Availability:
- Ships Same Business Day
- Weight:
- 0.24 LBS
$50.00 -
Spring Bags 12in x 2.5in ESB12.250
EIBACH
$50.00Protecting your Eibach shocks from road debris, UV exposure, and corrosive salt spray is essential for maintaining their performance and lifespan. These spring bags provide a practical, no-hassle solution that keeps your suspension components clean and...EIBESB12.250- SKU:
- EIBESB12.250
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
$50.00 -
Spring Bags 10in x 2.5in ESB10.250
EIBACH
$50.00Eibach spring bags protect your shock absorbers from road debris, mud, and corrosive salt spray that can degrade seals and compromise performance over time. By containing contaminants, these covers extend shock life and maintain consistent damping...EIBESB10.250- SKU:
- EIBESB10.250
- Availability:
- Ships Same Business Day
- Weight:
- 0.19 LBS
$50.00 -
Cup Bump Spring .625in Shaft BSC.625
EIBACH
$42.00Bump stops are critical for controlling suspension geometry during extreme compression events—whether you're launching hard or navigating rough track surfaces. This CNC-machined cup design provides consistent, predictable spring rates that protect your...EIBBSC.625- SKU:
- EIBBSC.625
- Availability:
- Ships Same Business Day
- Weight:
- 0.21 LBS
$42.00 -
Cup Bump Spring .500in Shaft BSC.500
EIBACH
$42.00Bump stops are critical to suspension geometry—they prevent metal-to-metal contact at full compression and protect your chassis from catastrophic damage during aggressive driving. This CNC-machined aluminum cup design offers reliable, repeatable...EIBBSC.500- SKU:
- EIBBSC.500
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
$42.00 -
Spring 16in Rear 5in OD 1600.500.0250
EIBACH
$95.00A properly matched rear spring is fundamental to suspension geometry and weight transfer during acceleration and cornering. This 250 lb/in spring rate coil delivers consistent load support for mid-range performance builds and street applications,...EIB1600.500.0250- SKU:
- EIB1600.500.0250
- Availability:
- Ships Same Business Day
- Weight:
- 8.80 LBS
$95.00 -
Spring 16in Rear 5in OD 1600.500.0225
EIBACH
$95.00Rear suspension geometry demands precision, and this 16-inch coil spring delivers the consistent load support required for predictable handling and controlled ride height. With a 225 lb/in spring rate, it's engineered to work in platform-specific setups...EIB1600.500.0225- SKU:
- EIB1600.500.0225
- Availability:
- Ships Same Business Day
- Weight:
- 8.00 LBS
$95.00 -
Spring 16in Rear 5in OD 1600.500.0200
EIBACH
$95.00Whether you're dialing in your suspension geometry or replacing worn springs on a daily driver, this 200 lb/in rear coil spring delivers the consistent rate you need for predictable handling and support. At 16 inches long with a 5-inch outer diameter,...EIB1600.500.0200- SKU:
- EIB1600.500.0200
- Availability:
- Ships Same Business Day
- Weight:
- 8.43 LBS
$95.00
