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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Coilover Spring 16in x 3.5in x 175lb 160-350-175 BP
SWIFT SPRINGS
$169.15Coilover Spring 16in x 3.5in x 175lb 160-350-175 BPCoil SpringBulletproof3.500 in ID16.000 in Length175 lb/in Spring RateCopper Powder CoatEachSWI160-350-175BP- SKU:
- SWI160-350-175BP
- Availability:
- Ships Same Business Day
- Weight:
- 7.40 LBS
- Spring Rate:
- 175 lb.
- Spring Height:
- 16"
- Spring ID:
- 3.5"
$169.15 -
Coilover Spring 16in x 3.5in x 160lb 160-350-160 BP
SWIFT SPRINGS
$169.15Coilover Spring 16in x 3.5in x 160lb 160-350-160 BPCoil SpringBulletproof3.500 in ID16.000 in Length160 lb/in Spring RateCopper Powder CoatEachSWI160-350-160BP- SKU:
- SWI160-350-160BP
- Availability:
- Ships Same Business Day
- Weight:
- 6.70 LBS
- Spring Rate:
- 160 lb.
- Spring Height:
- 16"
- Spring ID:
- 3.5"
$169.15 -
Coilover Spring 16in x 3.5in x 150lb 160-350-150 BP
SWIFT SPRINGS
$169.15Coilover Spring 16in x 3.5in x 150lb 160-350-150 BPCoil SpringBulletproof3.500 in ID16.000 in Length150 lb/in Spring RateCopper Powder CoatEachSWI160-350-150BP- SKU:
- SWI160-350-150BP
- Availability:
- Ships Same Business Day
- Weight:
- 6.55 LBS
- Spring Rate:
- 150 lb.
- Spring Height:
- 16"
- Spring ID:
- 3.5"
$169.15 -
Coilover Spring 16in x 3.5in x 140lb 160-350-140 BP
SWIFT SPRINGS
$169.15Coilover Spring 16in x 3.5in x 140lb 160-350-140 BPCoil SpringBulletproof3.500 in ID16.000 in Length140 lb/in Spring RateCopper Powder CoatEachSWI160-350-140BP- SKU:
- SWI160-350-140BP
- Availability:
- Ships Same Business Day
- Weight:
- 6.45 LBS
- Spring Rate:
- 140 lb.
- Spring Height:
- 16"
- Spring ID:
- 3.5"
$169.15 -
Coilover Spring 16in x 3.5in x 125lb 160-350-125 BP
SWIFT SPRINGS
$169.15Coilover Spring 16in x 3.5in x 125lb 160-350-125 BPCoil SpringBulletproof3.500 in ID16.000 in Length125 lb/in Spring RateCopper Powder CoatEachSWI160-350-125BP- SKU:
- SWI160-350-125BP
- Availability:
- Ships Same Business Day
- Weight:
- 6.60 LBS
- Spring Rate:
- 125 lb.
- Spring Height:
- 16"
- Spring ID:
- 3.5"
$169.15 -
Coilover Spring 16in x 3.0in x 150lb 160-300-150 BP
SWIFT SPRINGS
$136.85Coilover Spring 16in x 3.0in x 150lb 160-300-150 BPCoil SpringBulletproof3.000 in ID16.000 in Length150 lb/in Spring RateCopper Powder CoatEachSWI160-300-150BP- SKU:
- SWI160-300-150BP
- Availability:
- Ships Same Business Day
- Weight:
- 5.70 LBS
- Spring Rate:
- 150 lb.
- Spring Height:
- 16"
- Spring ID:
- 3"
$136.85 -
Coilover Spring 16in x 3.0in x 125lb 160-300-125 BP
SWIFT SPRINGS
$136.85Coilover Spring 16in x 3.0in x 125lb 160-300-125 BPCoil SpringBulletproof3.000 in ID16.000 in Length125 lb/in Spring RateCopper Powder CoatEachSWI160-300-125BP- SKU:
- SWI160-300-125BP
- Availability:
- Ships Same Business Day
- Weight:
- 5.10 LBS
- Spring Rate:
- 125 lb.
- Spring Height:
- 16"
- Spring ID:
- 3"
$136.85 -
Coilover Spring 16in x 3.0in x 100lb 160-300-100 BP
SWIFT SPRINGS
$136.85Coilover Spring 16in x 3.0in x 100lb 160-300-100 BPCoil SpringBulletproof3.000 in ID16.000 in Length100 lb/in Spring RateCopper Powder CoatEachSWI160-300-100BP- SKU:
- SWI160-300-100BP
- Availability:
- Ships Same Business Day
- Weight:
- 4.55 LBS
- Spring Rate:
- 100 lb.
- Spring Height:
- 16"
- Spring ID:
- 3"
$136.85 -
Barrel Spring 16in x 2.5in 110# 160-250-110 BP
SWIFT SPRINGS
$128.35Barrel Spring 16in x 2.5in 110# 160-250-110 BPCoil SpringBulletproof SeriesCoil-Over2.500 in ID16.000 in LengthSteelBlack Powder CoatEachSWI160-250-110BP- SKU:
- SWI160-250-110BP
- Availability:
- Ships Same Business Day
- Weight:
- 5.23 LBS
- Spring Rate:
- 110 lb.
- Spring Height:
- 16"
- Spring ID:
- 2.5"
$128.35 -
Conventional Rear Spring 14in x 5in x 300lb 140-500-300
SWIFT SPRINGS
$136.85Conventional Rear Spring 14in x 5in x 300lb 140-500-300Coil SpringConventional5.0 in OD14.000 in Length300 lb/in Spring RateSteelBlack Powder CoatEachSWI140-500-300- SKU:
- SWI140-500-300
- Availability:
- Ships Same Business Day
- Weight:
- 7.50 LBS
- Spring Rate:
- 300 lb.
- Spring Height:
- 14"
- Spring ID:
- 5"
$136.85 -
Conventional Rear Spring 14in x 5in x 275lb 140-500-275
SWIFT SPRINGS
$136.85Conventional Rear Spring 14in x 5in x 275lb 140-500-275Coil SpringConventional5.0 in OD14.000 in Length275 lb/in Spring RateSteelBlack Powder CoatEachSWI140-500-275- SKU:
- SWI140-500-275
- Availability:
- Ships Same Business Day
- Weight:
- 7.15 LBS
- Spring Rate:
- 275 lb.
- Spring Height:
- 14"
- Spring ID:
- 5"
$136.85 -
Conventional Rear Spring 14in x 5in x 250lb 140-500-250
SWIFT SPRINGS
$136.85Conventional Rear Spring 14in x 5in x 250lb 140-500-250Coil SpringConventional5.0 in OD14.000 in Length250 lb/in Spring RateSteelBlack Powder CoatEachSWI140-500-250- SKU:
- SWI140-500-250
- Availability:
- Ships Same Business Day
- Weight:
- 9.15 LBS
- Spring Rate:
- 250 lb.
- Spring Height:
- 14"
- Spring ID:
- 5"
$136.85 -
Conventional Rear Spring 14in x 5in x 225lb 140-500-225
SWIFT SPRINGS
$128.35Conventional Rear Spring 14in x 5in x 225lb 140-500-225Coil SpringConventional5.0 in OD14.000 in Length225 lb/in Spring RateSteelBlack Powder CoatEachSWI140-500-225- SKU:
- SWI140-500-225
- Availability:
- Ships Same Business Day
- Weight:
- 6.60 LBS
- Spring Rate:
- 225 lb.
- Spring Height:
- 14"
- Spring ID:
- 5"
$128.35 -
Conventional Rear Spring 14in x 5in x 200lb 140-500-200
SWIFT SPRINGS
$119.85Conventional Rear Spring 14in x 5in x 200lb 140-500-200Coil SpringConventional5.0 in OD14.000 in Length200 lb/in Spring RateSteelBlack Powder CoatEachSWI140-500-200- SKU:
- SWI140-500-200
- Availability:
- Ships Same Business Day
- Weight:
- 7.91 LBS
- Spring Rate:
- 200 lb.
- Spring Height:
- 14"
- Spring ID:
- 5"
$119.85 -
Conventional Rear Spring 14in x 5in x 175lb 140-500-175
SWIFT SPRINGS
$119.85Conventional Rear Spring 14in x 5in x 175lb 140-500-175Coil SpringConventional5.0 in OD14.000 in Length175 lb/in Spring RateSteelBlack Powder CoatEachSWI140-500-175- SKU:
- SWI140-500-175
- Availability:
- Ships Same Business Day
- Weight:
- 6.30 LBS
- Spring Rate:
- 175 lb.
- Spring Height:
- 14"
- Spring ID:
- 5"
$119.85 -
Coilover Spring 14in x 3.0in x 80lb 140-300-080
SWIFT SPRINGS
$111.35Coilover Spring 14in x 3.0in x 80lb 140-300-080Coil SpringCoil-Over3.000 in ID14.000 in Length80 lb/in Spring RateBlack Powder CoatEachSWI140-300-080- SKU:
- SWI140-300-080
- Availability:
- Ships Same Business Day
- Weight:
- 3.91 LBS
- Spring Rate:
- 80 lb.
- Spring Height:
- 14"
- Spring ID:
- 3"
$111.35 -
Coilover Spring 14in x 3.0in x 50lb 140-300-050
SWIFT SPRINGS
$111.35Coilover Spring 14in x 3.0in x 50lb 140-300-050Coil SpringCoil-Over3.000 in ID14.000 in Length50 lb/in Spring RateBlack Powder CoatEachSWI140-300-050- SKU:
- SWI140-300-050
- Availability:
- Ships Same Business Day
- Weight:
- 2.80 LBS
- Spring Rate:
- 50 lb.
- Spring Height:
- 14"
- Spring ID:
- 3"
$111.35 -
Barrel Spring 12in x 2.5in x 125# 120-250-125 B
SWIFT SPRINGS
$111.35Barrel Spring 12in x 2.5in x 125# 120-250-125 BCoil SpringBarrel2.500 in ID12.000 in Length125 lb/in Spring RateBlack Powder CoatEachSWI120-250-125B- SKU:
- SWI120-250-125B
- Availability:
- Ships Same Business Day
- Weight:
- 3.40 LBS
- Spring Rate:
- 125 lb.
- Spring Height:
- 12"
- Spring ID:
- 2.5"
$111.35 -
Spring Conventional 8.00in x 5in x 550lb 080-500-550 F
SWIFT SPRINGS
$140.25Spring Conventional 8.00in x 5in x 550lb 080-500-550 FCoil SpringConventional5.0 in OD8.000 in Length550 lb/in Spring RateSteelBlack Powder CoatEachSWI080-500-550F- SKU:
- SWI080-500-550F
- Availability:
- Ships Same Business Day
- Weight:
- 5.75 LBS
- Spring Rate:
- 550 lb.
- Spring Height:
- 8"
- Spring ID:
- 5"
$140.25 -
Spring Conventional 8.00in x 5in x 500lb 080-500-500 F
SWIFT SPRINGS
$140.25Spring Conventional 8.00in x 5in x 500lb 080-500-500 FCoil SpringConventional5.0 in OD8.000 in Length500 lb/in Spring RateSteelBlack Powder CoatEachSWI080-500-500F- SKU:
- SWI080-500-500F
- Availability:
- Ships Same Business Day
- Weight:
- 5.50 LBS
- Spring Rate:
- 500 lb.
- Spring Height:
- 8"
- Spring ID:
- 5"
$140.25
