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!
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- Qty in Cart
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- Price
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Pro Shock Coil-Over Kit 2.5in For Black WB C300WB
PRO SHOCK
$89.24Fine-tuning your suspension geometry requires a coil-over system that delivers repeatable adjustability without compromising ride quality or durability. The Pro Shock Coil-Over Kit gives you independent spring preload and ride height adjustment, letting...PROC300WB- SKU:
- PROC300WB
- Availability:
- Ships Same Business Day
- Weight:
- 0.80 LBS
- MFG Part #:
- C300WB
$89.24 -
Pro Shock Aluminum Coil-Over Kit C300
PRO SHOCK
$89.24A quality suspension setup separates competitive lap times from also-rans, and the Pro Shock Aluminum Coil-Over Kit C300 delivers the adjustability and precision you need to dial in your vehicle's handling across varying track conditions. Built with a...PROC300- SKU:
- PROC300
- Availability:
- Ships Same Business Day
- Weight:
- 0.83 LBS
- MFG Part #:
- C300
$89.24 -
Pro Shock Bearing Mount 1/2in B200A
PRO SHOCK
$36.74Precision shock mounting is critical for maintaining suspension geometry and damping performance under extreme track conditions. This Pro Shock Bearing Mount delivers the spherical articulation your suspension demands while eliminating bind and...PROB200A- SKU:
- PROB200A
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- MFG Part #:
- B200A
$36.74 -
Pro Shock Threaded Body Aluminum "AC" Series 9 Inch - 5C - 5R Shock AC950B
PRO SHOCK
$278.24If you're running a race setup that demands precise suspension tuning, the AC950B delivers the adjustability and durability required for consistent performance across varied track conditions. Its threaded aluminum body and twin-tube design allow you to...PROAC950B- SKU:
- PROAC950B
- Availability:
- Ships Same Business Day
- Weight:
- 3.90 LBS
- MFG Part #:
- AC950B
$278.24Qty in Cart: 0Quantity:Price:$278.24Subtotal: -
Pro Shock Threaded Body Aluminum "AC" Series 9 Inch - 4C - 6R Split Valve Shock AC946B
PRO SHOCK
$278.24The AC946B delivers precise damping control for vehicles demanding split-valve tuning at the track or trail. Its threaded aluminum body enables quick adjustments without specialized tools, while the twin-tube design balances responsiveness with...PROAC946B- SKU:
- PROAC946B
- Availability:
- Ships Same Business Day
- Weight:
- 4.01 LBS
- MFG Part #:
- AC946B
$278.24 -
Pro Shock Threaded Body Aluminum "AC" Series Split Valve 7 Inch - 5C - 4R Shock AC754B
PRO SHOCK
$278.24The AC754B delivers consistent damping control through a precision split-valve design, allowing you to dial in separate compression and rebound characteristics for your specific track conditions. Built from threaded aluminum with gold anodizing, this...PROAC754B- SKU:
- PROAC754B
- Availability:
- Ships Same Business Day
- Weight:
- 3.51 LBS
- MFG Part #:
- AC754B
$278.24Qty in Cart: 0Quantity:Price:$278.24Subtotal: -
Pro Shock Threaded Body Aluminum "AC" Series 7 Inch - 4C - 6R Split Valve Shock AC746B
PRO SHOCK
$278.24The Pro Shock Threaded Body Aluminum AC Series delivers the precision damping control serious racers and high-performance builds demand. Whether you're fine-tuning suspension geometry on a road course or dialing in off-road compliance, the 4-6 split...PROAC746B- SKU:
- PROAC746B
- Availability:
- Ships Same Business Day
- Weight:
- 3.54 LBS
- MFG Part #:
- AC746B
$278.24Qty in Cart: 0Quantity:Price:$278.24Subtotal: -
Pro Shock Threaded Body Aluminum "AC" Series 7 Inch 4C - 4R Shock AC740B
PRO SHOCK
$278.24The AC740B delivers proven twin-tube damping performance in a lightweight aluminum package, ideal for builds where unsprung weight matters. Its threaded body design simplifies installation and adjustment, while the 4-4 valve configuration provides...PROAC740B- SKU:
- PROAC740B
- Availability:
- Ships Same Business Day
- Weight:
- 3.53 LBS
- MFG Part #:
- AC740B
$278.24 -
Pro Shock Threaded Body Aluminum "AC" Series 5 Inch - 5C - 5R Split Valve Shock AC557B
PRO SHOCK
$278.24The AC557B delivers precision damping control with a proven split-valve design that separates compression and rebound circuits for fine-tuned handling across varying track conditions. Built from threaded aluminum construction with gold anodizing, this...PROAC557B- SKU:
- PROAC557B
- Availability:
- Ships Same Business Day
- Weight:
- 2.97 LBS
- MFG Part #:
- AC557B
$278.24 -
Pro Shock Threaded Body Aluminum "AC" Series 5 Inch 5C - 5R Shock AC550B
PRO SHOCK
$278.24The AC550B delivers tunable damping control with a compact 5-inch design that fits tight chassis configurations without sacrificing adjustability. The threaded aluminum body allows precision valving changes in the field, letting you dial in your...PROAC550B- SKU:
- PROAC550B
- Availability:
- Ships Same Business Day
- Weight:
- 2.95 LBS
- MFG Part #:
- AC550B
$278.24 -
Pro Shock Aluminum Body "A" Series 9 Inch 5C 5R Shock A950B
PRO SHOCK
$278.24The Pro Shock A950B delivers consistent damping control with a lightweight aluminum construction designed for both street and track applications. Its twin-tube design and 5-5 valve configuration provide predictable handling characteristics without the...PROA950B- SKU:
- PROA950B
- Availability:
- Ships Same Business Day
- Weight:
- 3.74 LBS
- MFG Part #:
- A950B
$278.24 -
Pro Shock Aluminum Body "A" Series 9 Inch 4C 6R Split Valve Shock A946B
PRO SHOCK
$278.24The Pro Shock A946B delivers precision damping control through its split-valve design, allowing independent tuning of compression and rebound for optimal handling across varied track conditions. Built with a lightweight aluminum body and gold anodized...PROA946B- SKU:
- PROA946B
- Availability:
- Ships Same Business Day
- Weight:
- 3.68 LBS
- MFG Part #:
- A946B
$278.24Qty in Cart: 0Quantity:Price:$278.24Subtotal: -
Pro Shock Aluminum Body "A" Series 9 Inch 4C 5R Split Valve Shock A945B
PRO SHOCK
$278.24The A945B delivers consistent damping control across compression and rebound cycles, essential for maintaining vehicle stability through aggressive cornering and rough track surfaces. Its aluminum construction provides a lightweight alternative to...PROA945B- SKU:
- PROA945B
- Availability:
- Ships Same Business Day
- Weight:
- 3.83 LBS
- MFG Part #:
- A945B
$278.24 -
Pro Shock Aluminum Body "A" Series 9 Inch Shock 3C 9R A939B
PRO SHOCK
$278.24The Pro Shock Aluminum Body "A" Series delivers consistent damping control across a wide range of track conditions, making it an essential upgrade for racers who demand predictable suspension response. Built with a lightweight aluminum construction and...PROA939B- SKU:
- PROA939B
- Availability:
- Ships Same Business Day
- Weight:
- 3.67 LBS
- MFG Part #:
- A939B
$278.24 -
Pro Shock Aluminum Body "A" Series 8 Inch 4C 8R Split Valve Shock A848B
PRO SHOCK
$278.24The Pro Shock Aluminum Body "A" Series delivers precision damping control essential for serious racers and high-performance builds. With a split-valve design and tunable 4-8 valve configuration, you'll achieve the exact suspension response needed for...PROA848B- SKU:
- PROA848B
- Availability:
- Ships Same Business Day
- Weight:
- 3.48 LBS
- MFG Part #:
- A848B
$278.24 -
Pro Shock Aluminum Body Split Valve Shock A754B
PRO SHOCK
$278.24The Pro Shock A754B delivers tunable damping control through its split-valve design, allowing you to dial in compression and rebound independently for precise handling across varying track conditions. Built with a smooth aluminum body and gold anodized...PROA754B- SKU:
- PROA754B
- Availability:
- Ships Same Business Day
- Weight:
- 3.28 LBS
- MFG Part #:
- A754B
$278.24Qty in Cart: 0Quantity:Price:$278.24Subtotal: -
Pro Shock Aluminum Body Split Valve Shock A752B
PRO SHOCK
$278.24The Pro Shock A752B delivers precise damping control through its 5-2 split valve design, engineered to manage both compression and rebound with the responsiveness serious racers demand. Built from aluminum and finished in gold anodize, this twin-tube...PROA752B- SKU:
- PROA752B
- Availability:
- Ships Same Business Day
- Weight:
- 3.26 LBS
- MFG Part #:
- A752B
$278.24 -
Pro Shock Aluminum Body "A" Series Shock 7in Stroke A750B
PRO SHOCK
$278.24The Pro Shock A750B delivers precise damping control and consistent performance across demanding track conditions. With a 7-inch stroke and twin-tube design, this aluminum-body shock handles both compression and rebound with the balanced 5-5 valve...PROA750B- SKU:
- PROA750B
- Availability:
- Ships Same Business Day
- Weight:
- 3.29 LBS
- MFG Part #:
- A750B
$278.24 -
Pro Shock Aluminum Body Split Valve Shock A746B
PRO SHOCK
$278.24The Pro Shock A746B delivers consistent damping performance across compression and extension cycles, making it an ideal choice for racers and enthusiasts who demand predictable handling characteristics. Its aluminum body construction combined with a...PROA746B- SKU:
- PROA746B
- Availability:
- Ships Same Business Day
- Weight:
- 3.37 LBS
- MFG Part #:
- A746B
$278.24 -
Pro Shock Aluminum Body Split Valve Shock A745B
PRO SHOCK
$278.24The Pro Shock A745B delivers consistent damping control across compression and extension cycles, making it an ideal choice for racers and enthusiasts who demand predictable suspension response under demanding track conditions. Its aluminum construction...PROA745B- SKU:
- PROA745B
- Availability:
- Ships Same Business Day
- Weight:
- 3.40 LBS
- MFG Part #:
- A745B
$278.24Qty in Cart: 0Quantity:Price:$278.24Subtotal: