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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Conventional Spring 9.5in x 5in x 575lb 950-500-575
SWIFT SPRINGS
$128.35A properly tuned suspension starts with the right spring rate, and this 575 lb/in conventional coil spring delivers the front-end support your vehicle needs for consistent handling and predictable weight transfer. Whether you're tuning a street machine...SWI950-500-575- SKU:
- SWI950-500-575
- Availability:
- Ships Same Business Day
- Weight:
- 6.85 LBS
- MFG Part #:
- 950-500-575
- Spring Rate:
- 575 lb.
- Spring Height:
- 9.5"
- Spring ID:
- 5"
$128.35Qty in Cart: 0Quantity:Price:$128.35Subtotal: -
Barrel Spring 16in x 2.5in 175# 160-250-175 BP
SWIFT SPRINGS
$136.85If you're building or tuning a coil-over suspension system, spring rate is everything—and this 175 lb/in barrel spring delivers the progressive support needed for responsive handling without compromising ride quality. The 16-inch length and 2.5-inch...SWI160-250-175BP- SKU:
- SWI160-250-175BP
- Availability:
- Ships Same Business Day
- Weight:
- 7.25 LBS
- MFG Part #:
- 160-250-175 BP
- Spring Rate:
- 175 lb.
- Spring Height:
- 16"
- Spring ID:
- 2.5"
$136.85 -
Conventional Spring 13in x 5in x 150# 130-500-150 BP
SWIFT SPRINGS
$136.85A properly-tuned suspension starts with the right spring rate, and this 150 lb/in conventional coil spring delivers the consistent, linear support your rear end demands for predictable handling and load management. Whether you're dialing in a street car...SWI130-500-150BP- SKU:
- SWI130-500-150BP
- Availability:
- Ships Same Business Day
- Weight:
- 5.00 LBS
- MFG Part #:
- 130-500-150 BP
- Spring Rate:
- 150 lb.
- Spring Height:
- 13"
- Spring ID:
- 5"
$136.85 -
Coilover Spring 8in x 2.5in x 125lb 080-250-125
SWIFT SPRINGS
$102.85Fine-tuning your suspension geometry requires a coilover spring that delivers consistent, predictable rates without compromise. This 125 lb/in barrel spring provides the mid-range stiffness needed for street-to-track applications, offering responsive...SWI080-250-125- SKU:
- SWI080-250-125
- Availability:
- Ships Same Business Day
- Weight:
- 3.00 LBS
- MFG Part #:
- 080-250-125
- Spring Rate:
- 125 lb.
- Spring Height:
- 8"
- Spring ID:
- 2.5"
$102.85Qty in Cart: 0Quantity:Price:$102.85Subtotal: -
Pull Bar Spring Progressive 600-2000 067-500-600-2000
SWIFT SPRINGS
$128.35Progressive spring rates deliver the suspension compliance you need off the line while maintaining stiff resistance under load—ideal for drag racing, pulling, and high-torque applications where traditional linear springs fall short. This 600-2000 lb/in...SWI067-500-600-2000- SKU:
- SWI067-500-600-2000
- Availability:
- Ships Same Business Day
- Weight:
- 7.50 LBS
- MFG Part #:
- 067-500-600-2000
- Spring Rate:
- 600-2000 lb.
$128.35 -
On Sale
5inodx10.5in x 175# Rr Spring M10.5-175
SUSPENSION SPRINGS
MSRP: $68.99Now: $64.85Was: $68.99A properly matched rear spring is critical for maintaining suspension geometry, load capacity, and chassis balance—especially when running modified powertrains or increased wheel weights. This 175 lb/in coil spring delivers the stiffness needed for...SSSM175- SKU:
- SSSM175
- Availability:
- Ships Same Business Day
- Weight:
- 6.14 LBS
- MFG Part #:
- M10.5-175
MSRP: $68.99Now: $64.85Was: $68.99Qty in Cart: 0Quantity:Price:MSRP: $68.99Now: $64.85Was: $68.99Subtotal: -
Bump Stop Blue Molded 1in RE-BR-RSW-390
RE SUSPENSION
$25.99Bump stops are critical suspension components that prevent metal-to-metal contact when your suspension reaches full compression, protecting expensive components from damage during hard cornering, braking, and track work. This molded polyurethane puck...RESRE-BR-RSW-390- SKU:
- RESRE-BR-RSW-390
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- MFG Part #:
- RE-BR-RSW-390
$25.99Qty in Cart: 0Quantity:Price:$25.99Subtotal: -
Bump Stop Yellow Molded 1in RE-BR-RSW-380
RE SUSPENSION
$25.99Bump stops are critical suspension components that prevent metal-to-metal contact and control suspension geometry under extreme compression. This polyurethane puck absorbs impact energy and protects your chassis from damage during hard cornering,...RESRE-BR-RSW-380- SKU:
- RESRE-BR-RSW-380
- Availability:
- Ships Same Business Day
- Weight:
- 0.09 LBS
- MFG Part #:
- RE-BR-RSW-380
$25.99Qty in Cart: 0Quantity:Price:$25.99Subtotal: -
Bump Stop Green Molded 1in RE-BR-RSW-370
RE SUSPENSION
$25.99Bump stops are critical suspension components that prevent metal-to-metal contact during extreme compression, protecting your chassis, suspension geometry, and overall vehicle handling. A quality polyurethane bump stop like this one provides consistent...RESRE-BR-RSW-370- SKU:
- RESRE-BR-RSW-370
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- MFG Part #:
- RE-BR-RSW-370
$25.99 -
Alum Packer 16mm 1/16in Thick RE-BR-PKA16-063
RE SUSPENSION
$19.95Precise suspension tuning demands exact shim thickness, and this aluminum packer delivers the consistency your bump stop setup requires. Whether you're fine-tuning preload on a track car or dialing in a street suspension, this 1/16" shim maintains its...RESRE-BR-PKA16-063- SKU:
- RESRE-BR-PKA16-063
- Availability:
- Ships Same Business Day
- Weight:
- 0.03 LBS
- MFG Part #:
- RE-BR-PKA16-063
$19.95Qty in Cart: 0Quantity:Price:$19.95Subtotal: -
Apollo Bump Rubber Blue 90 Durometer RE-BR-5153-190
RE SUSPENSION
$16.99Bump stops are critical suspension components that prevent metal-to-metal contact when your suspension compresses to its limit—a condition that can cause catastrophic damage under hard acceleration, braking, or cornering. The Apollo Bump Rubber provides...RESRE-BR-5153-190- SKU:
- RESRE-BR-5153-190
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- MFG Part #:
- RE-BR-5153-190
$16.99Qty in Cart: 0Quantity:Price:$16.99Subtotal: -
Apollo Bump Rubber Yellow 80 Durometer RE-BR-5153-180
RE SUSPENSION
$16.99Bump stops are critical for controlling chassis geometry during compression and protecting your suspension components from bottoming out. The Apollo 80 Durometer rubber puck provides the ideal balance of compliance and progressive resistance, ensuring...RESRE-BR-5153-180- SKU:
- RESRE-BR-5153-180
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- MFG Part #:
- RE-BR-5153-180
$16.99 -
Apollo Bump Rubber Green 70 Durometer RE-BR-5153-170
RE SUSPENSION
$16.99Bump stops are critical suspension components that prevent metal-to-metal contact when your suspension compresses fully, protecting expensive components from damage and extending your suspension's service life. The Apollo Green 70 Durometer rubber puck...RESRE-BR-5153-170- SKU:
- RESRE-BR-5153-170
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- MFG Part #:
- RE-BR-5153-170
$16.99Qty in Cart: 0Quantity:Price:$16.99Subtotal: -
QuickCar 3/4" Aluminum Scalloped Suspension Tube 39" Black Anodized 75-390
QUICKCAR RACING PRODUCTS
$56.45Suspension tube quality directly impacts handling precision and component longevity in high-performance applications. This QuickCar 3/4" aluminum tube combines rigid 6061 construction with a scalloped design that delivers a secure mechanical grip,...QRP75-390- SKU:
- QRP75-390
- Availability:
- Ships Same Business Day
- Weight:
- 2.45 LBS
- MFG Part #:
- 75-390
$56.45 -
Quickcar 3/4 Aluminum Scalloped Suspension Tube 38in 75-380
QUICKCAR RACING PRODUCTS
$55.05When you're building or upgrading a suspension system, tube strength directly impacts handling precision and component longevity under load. The QuickCar 3/4 Aluminum Scalloped Suspension Tube delivers a 35% strength advantage over conventional hex and...QRP75-380- SKU:
- QRP75-380
- Availability:
- Ships Same Business Day
- Weight:
- 2.35 LBS
- MFG Part #:
- 75-380
$55.05 -
Quickcar 3/4 Aluminum Scalloped Suspension Tube 33in Black Anodized 75-330
QUICKCAR RACING PRODUCTS
$48.40If you're building a custom suspension or fabricating a control arm assembly, you need a tube that can handle aggressive loads without deflection or failure. This Quickcar suspension tube delivers the rigidity you need with its scalloped design and 6061...QRP75-330- SKU:
- QRP75-330
- Availability:
- Ships Same Business Day
- Weight:
- 2.05 LBS
- MFG Part #:
- 75-330
$48.40 -
Quickcar 5/8" Aluminum Scalloped Suspension Tube 31" Black Anodized 62-310
QUICKCAR RACING PRODUCTS
$39.05If you're building or tuning a suspension system that demands both lightweight construction and structural integrity, the Quickcar 5/8" Aluminum Scalloped Suspension Tube delivers on both fronts. The scalloped design reinforces the tube's rigidity...QRP62-310- SKU:
- QRP62-310
- Availability:
- Ships Same Business Day
- Weight:
- 1.60 LBS
- MFG Part #:
- 62-310
$39.05 -
Quickcar 5/8 Aluminum Scalloped Suspension Tube 23.5in Black Anodized 62-235
QUICKCAR RACING PRODUCTS
$32.80Whether you're fine-tuning a competition suspension or building a custom racing application, this suspension tube delivers the lightweight rigidity you need without compromise. The scalloped design reduces rotational mass while maintaining structural...QRP62-235- SKU:
- QRP62-235
- Availability:
- Ships Same Business Day
- Weight:
- 1.20 LBS
- MFG Part #:
- 62-235
$32.80 -
QuickCar 5/8" Aluminum Scalloped Suspension Tube 18.5" Black 62-185
QUICKCAR RACING PRODUCTS
$27.80When building a roll cage or chassis that demands precision engineering without excess weight, this aluminum suspension tube delivers the strength-to-weight ratio competitive racing requires. The scalloped design eliminates material where it isn't needed...QRP62-185- SKU:
- QRP62-185
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
- MFG Part #:
- 62-185
$27.80 -
QuickCar 3/8" Aluminum Scalloped Suspension Tube 25" Length 38-250
QUICKCAR RACING PRODUCTS
$26.20Lightweight aluminum construction with a scalloped design reduces unsprung weight while maintaining rigidity in high-performance suspension applications. The 3/8-24 female threads provide a secure connection point for adjustable suspension components,...QRP38-250- SKU:
- QRP38-250
- Availability:
- Ships Same Business Day
- Weight:
- 0.51 LBS
- MFG Part #:
- 38-250
$26.20Qty in Cart: 0Quantity:Price:$26.20Subtotal:
