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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Helper Spring C/O 2.4in Tall 84lb H65-060-015
SWIFT SPRINGS
$79.05Helper Spring C/O 2.4in Tall 84lbCoil SpringTake Up2.625 in ID2.400 in Tall84 lb Spring RateGoldEachSWIH65-060-015- SKU:
- SWIH65-060-015
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
- MFG Part #:
- H65-060-015
- Spring Rate:
- 84 lb.
$79.05 -
Conventional Spring 9.5in x 5.5in x 550# 950-550-550
SWIFT SPRINGS
$128.35Conventional Spring 9.5in x 5.5in x 550#Coil SpringConventional5.5 in OD9.500 in Length550 lb/in Spring RateFrontBlack Powder CoatEachSWI950-550-550- SKU:
- SWI950-550-550
- Availability:
- Ships Same Business Day
- Weight:
- 7.45 LBS
- MFG Part #:
- 950-550-550
- Spring Rate:
- 550 lb.
- Spring Height:
- 9.5"
- Spring ID:
- 5.5"
$128.35 -
Conventional Spring 9.5in x 5.5in x 500# 950-550-500
SWIFT SPRINGS
$128.35Conventional Spring 9.5in x 5.5in x 500#Coil SpringConventional5.5 in OD9.500 in Length500 lb/in Spring RateFrontBlack Powder CoatEachSWI950-550-500- SKU:
- SWI950-550-500
- Availability:
- Ships Same Business Day
- Weight:
- 6.30 LBS
- MFG Part #:
- 950-550-500
- Spring Rate:
- 500 lb.
- Spring Height:
- 9.5"
- Spring ID:
- 5.5"
$128.35 -
Conventional Spring 9.5in x 5.5in x 400 950-550-400
SWIFT SPRINGS
$128.35Conventional Spring 9.5in x 5.5in x 400Coil SpringConventional5.5 in OD9.500 in Length400 lb/in Spring RateFrontBlack Powder CoatEachSWI950-550-400- SKU:
- SWI950-550-400
- Availability:
- Ships Same Business Day
- Weight:
- 6.25 LBS
- MFG Part #:
- 950-550-400
- Spring Rate:
- 400 lb.
- Spring Height:
- 9.5"
- Spring ID:
- 5.5"
$128.35 -
Conventional Spring 9.5in x 5in x 650# 950-500-650
SWIFT SPRINGS
$128.35Conventional Spring 9.5in x 5in x 650#Coil SpringConventional5.0 in OD9.500 in Length650 lb/in Spring RateRearBlack Powder CoatEachSWI950-500-650- SKU:
- SWI950-500-650
- Availability:
- Ships Same Business Day
- Weight:
- 6.89 LBS
- MFG Part #:
- 950-500-650
- Spring Rate:
- 650 lb.
- Spring Height:
- 9.5"
- Spring ID:
- 5"
$128.35 -
Conventional Spring 9.5in x 5in x 600# 950-500-600
SWIFT SPRINGS
$128.35Conventional Spring 9.5in x 5in x 600#Coil SpringConventional5.0 in OD9.500 in Length600 lb/in Spring RateFrontBlack Powder CoatEachSWI950-500-600- SKU:
- SWI950-500-600
- Availability:
- Ships Same Business Day
- Weight:
- 6.60 LBS
- MFG Part #:
- 950-500-600
- Spring Rate:
- 600 lb.
- Spring Height:
- 9.5"
- Spring ID:
- 5"
$128.35 -
Conventional Spring 9.5in x 5in x 575lb 950-500-575
SWIFT SPRINGS
$128.35Conventional Spring 9.5in x 5in x 575lbCoil SpringConventional5.0 in OD9.500 in Length575 lb/in Spring RateFrontBlack Powder CoatEachSWI950-500-575- 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"
$128.35 -
Conventional Spring 9.5in x 5in x 550# 950-500-550
SWIFT SPRINGS
$128.35Conventional Spring 9.5in x 5in x 550#Coil SpringConventional5.0 in OD9.500 in Length550 lb/in Spring RateFrontBlack Powder CoatEachSWI950-500-550- SKU:
- SWI950-500-550
- Availability:
- Ships Same Business Day
- Weight:
- 7.00 LBS
- MFG Part #:
- 950-500-550
- Spring Rate:
- 550 lb.
- Spring Height:
- 9.5"
- Spring ID:
- 5"
$128.35 -
Conventional Spring 9.5in x 5in x 525lb 950-500-525
SWIFT SPRINGS
$128.35Conventional Spring 9.5in x 5in x 525lbCoil SpringConventional5.0 in OD9.500 in Length525 lb/in Spring RateFrontBlack Powder CoatEachSWI950-500-525- SKU:
- SWI950-500-525
- Availability:
- Ships Same Business Day
- Weight:
- 6.60 LBS
- MFG Part #:
- 950-500-525
- Spring Rate:
- 525 lb.
- Spring Height:
- 9.5"
- Spring ID:
- 5"
$128.35 -
Conventional Spring 9.5in x 5in x 500# 950-500-500
SWIFT SPRINGS
$128.35Conventional Spring 9.5in x 5in x 500#Coil SpringConventional5.0 in OD9.500 in Length500 lb/in Spring RateFrontBlack Powder CoatEachSWI950-500-500- SKU:
- SWI950-500-500
- Availability:
- Ships Same Business Day
- Weight:
- 6.35 LBS
- MFG Part #:
- 950-500-500
- Spring Rate:
- 500 lb.
- Spring Height:
- 9.5"
- Spring ID:
- 5"
$128.35 -
Conventional Spring 9.5in x 5in x 450# 950-500-450
SWIFT SPRINGS
$128.35Conventional Spring 9.5in x 5in x 450#Coil SpringConventional5.0 in OD9.500 in Length450 lb/in Spring RateRearBlack Powder CoatEachSWI950-500-450- SKU:
- SWI950-500-450
- Availability:
- Ships Same Business Day
- Weight:
- 5.88 LBS
- MFG Part #:
- 950-500-450
- Spring Rate:
- 450 lb.
- Spring Height:
- 9.5"
- Spring ID:
- 5"
$128.35 -
Conventional Spring 20in x 5in x 125lb 200-500-125
SWIFT SPRINGS
$153.85Conventional Spring 20in x 5in x 125lbCoil SpringConventional5.0 in OD20.000 in Length125 lb/in Spring RateRearBlack Powder CoatEachSWI200-500-125- SKU:
- SWI200-500-125
- Availability:
- Ships Same Business Day
- Weight:
- 3.00 LBS
- MFG Part #:
- 200-500-125
- Spring Rate:
- 125 lb.
- Spring Height:
- 20"
- Spring ID:
- 5"
$153.85 -
Conventional Spring 20in x 5in x 100lb 200-500-100
SWIFT SPRINGS
$145.35Conventional Spring 20in x 5in x 100lbCoil SpringConventional5.0 in OD20.000 in Length100 lb/in Spring RateRearBlack Powder CoatEachSWI200-500-100- SKU:
- SWI200-500-100
- Availability:
- Ships Same Business Day
- Weight:
- 7.45 LBS
- MFG Part #:
- 200-500-100
- Spring Rate:
- 100 lb.
- Spring Height:
- 20"
- Spring ID:
- 5"
$145.35 -
Conventional Spring 20in x 5in x 80lb 200-500-080
SWIFT SPRINGS
$145.35Conventional Spring 20in x 5in x 80lbCoil SpringConventional5.0 in OD20.000 in Length80 lb/in Spring RateRearBlack Powder CoatEachSWI200-500-080- SKU:
- SWI200-500-080
- Availability:
- Ships Same Business Day
- Weight:
- 6.40 LBS
- MFG Part #:
- 200-500-080
- Spring Rate:
- 80 lb.
- Spring Height:
- 20"
- Spring ID:
- 5"
$145.35 -
Conventional Spring 20in x 5in x 50lb 200-500-050
SWIFT SPRINGS
$145.35Conventional Spring 20in x 5in x 50lbCoil SpringConventional5.0 in OD20.000 in Length50 lb/in Spring RateRearBlack Powder CoatEachSWI200-500-050- SKU:
- SWI200-500-050
- Availability:
- Ships Same Business Day
- Weight:
- 5.10 LBS
- MFG Part #:
- 200-500-050
- Spring Rate:
- 50 lb.
- Spring Height:
- 20"
- Spring ID:
- 5"
$145.35 -
Coil-Over Spring 20in x 2.50in Progressive 200-250-150 V
SWIFT SPRINGS
$170.85Coil-Over Spring 20in x 2.50in ProgressiveCoil SpringConventional2.500 in ID20.000 in Length150 lb/in Spring RateBlack Powder CoatEachSWI200-250-150V- SKU:
- SWI200-250-150V
- Availability:
- Ships Same Business Day
- Weight:
- 9.30 LBS
- MFG Part #:
- 200-250-150 V
- Spring Height:
- 20"
- Spring ID:
- 2.5"
$170.85 -
Coil-Over Spring 18in x 5in x 100lb 2.5in ID 180-2550-100 BP
SWIFT SPRINGS
$136.85Coil-Over Spring 18in x 5in x 100lb 2.5in IDCoil SpringBarrelCoil-Over2.500 in ID18.000 in Length100 lb/in Spring RateBlack Powder CoatEachSWI180-2550-100BP- SKU:
- SWI180-2550-100BP
- Availability:
- Ships Same Business Day
- Weight:
- 7.00 LBS
- MFG Part #:
- 180-2550-100 BP
- Spring Rate:
- 100 lb.
- Spring Height:
- 18"
- Spring ID:
- 5"
$136.85 -
Coil-Over Spring 18in x 5in x 80lb 2.5in ID 180-2550-080 BP
SWIFT SPRINGS
$136.85Coil-Over Spring 18in x 5in x 80lb 2.5in IDCoil SpringBarrelCoil-Over2.500 in ID18.000 in Length80 lb/in Spring RateBlack Powder CoatEachSWI180-2550-080BP- SKU:
- SWI180-2550-080BP
- Availability:
- Ships Same Business Day
- Weight:
- 5.00 LBS
- MFG Part #:
- 180-2550-080 BP
- Spring Rate:
- 80 lb.
- Spring Height:
- 18"
- Spring ID:
- 5"
$136.85 -
Conventional Spring 16in x 5in x 225lb 160-500-225
SWIFT SPRINGS
$136.85Conventional Spring 16in x 5in x 225lbCoil SpringConventional5.0 in OD16.000 in Length225 lb/in Spring RateRearBlack Powder CoatEachSWI160-500-225- SKU:
- SWI160-500-225
- Availability:
- Ships Same Business Day
- Weight:
- 8.60 LBS
- MFG Part #:
- 160-500-225
- Spring Rate:
- 225 lb.
- Spring Height:
- 16"
- Spring ID:
- 5"
$136.85 -
Conventional Spring 16in x 5in x 200# 160-500-200
SWIFT SPRINGS
$136.85Conventional Spring 16in x 5in x 200#Coil SpringConventional5.0 in OD16.000 in Length200 lb/in Spring RateRearBlack Powder CoatEachSWI160-500-200- SKU:
- SWI160-500-200
- Availability:
- Ships Same Business Day
- Weight:
- 7.79 LBS
- MFG Part #:
- 160-500-200
- Spring Rate:
- 200 lb.
- Spring Height:
- 16"
- Spring ID:
- 5"
$136.85
