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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Hyperco Coil Over Spring 2.5in ID 14in Tall 1814B0200
HYPERCO
$90.00Whether you're building a track-focused suspension or fine-tuning your street machine, coil-over springs are the foundation of responsive handling and consistent ride height control. This Hyperco 200 lb/in spring delivers the linear rate consistency you...HYP1814B0200- SKU:
- HYP1814B0200
- Availability:
- Ships Same Business Day
- Weight:
- 4.77 LBS
- MFG Part #:
- 1814B0200
$90.00 -
Hyperco Coil Over Spring 2.5in ID 14in Tall 1814B0185
HYPERCO
$90.00A properly tuned suspension demands the right spring rate to match your setup, and this Hyperco coil-over delivers predictable, linear support for both track and street applications. At 185 lb/in, you're getting a medium-rate spring that balances...HYP1814B0185- SKU:
- HYP1814B0185
- Availability:
- Ships Same Business Day
- Weight:
- 4.50 LBS
- MFG Part #:
- 1814B0185
$90.00 -
Hyperco Coil Over Spring 2.5in ID 14in Tall 1814B0175
HYPERCO
$90.00Precision suspension tuning starts with the right spring rate, and this Hyperco coil-over delivers predictable, linear load support for track-focused setups. The 175 lb/in rate is engineered for moderate to aggressive applications where you need...HYP1814B0175- SKU:
- HYP1814B0175
- Availability:
- Ships Same Business Day
- Weight:
- 4.14 LBS
- MFG Part #:
- 1814B0175
$90.00 -
Hyperco Coil Over Spring 2.5in ID 14in Tall 1814B0160
HYPERCO
$90.00Precision suspension tuning demands springs engineered for consistent performance across your entire range of motion. The Hyperco 1814B0160 coil-over spring delivers a 160 lb/in rate that balances responsiveness with control, making it ideal for builders...HYP1814B0160- SKU:
- HYP1814B0160
- Availability:
- Ships Same Business Day
- Weight:
- 3.95 LBS
- MFG Part #:
- 1814B0160
$90.00 -
Hyperco Coil Over Spring 2.5in ID 14in Tall 1814B0150
HYPERCO
$90.00Coil-over suspension demands a spring engineered for precise damping and consistent performance across varying track conditions. The Hyperco 1814B0150 delivers a 150 lb/in rate that balances responsiveness with stability, making it ideal for road racing,...HYP1814B0150- SKU:
- HYP1814B0150
- Availability:
- Ships Same Business Day
- Weight:
- 3.90 LBS
- MFG Part #:
- 1814B0150
$90.00 -
Hyperco Coil Over Spring 2.5in ID 14in Tall 1814B0138
HYPERCO
$90.00If you're building a track-focused suspension or upgrading your coil-over setup, spring rate consistency is non-negotiable. This Hyperco 138 lb/in spring delivers predictable, linear resistance across the entire suspension stroke, giving you the tuning...HYP1814B0138- SKU:
- HYP1814B0138
- Availability:
- Ships Same Business Day
- Weight:
- 3.59 LBS
- MFG Part #:
- 1814B0138
$90.00 -
Hyperco Coil Over Spring 2.5in ID 14in Tall 1814B0110
HYPERCO
$90.00Coil-over suspension tuning demands springs engineered for precision and consistency—and the Hyperco 1814B0110 delivers exactly that. With a moderate 110 lb/in spring rate, this 14-inch coil-over spring handles street-to-road course applications without...HYP1814B0110- SKU:
- HYP1814B0110
- Availability:
- Ships Same Business Day
- Weight:
- 2.98 LBS
- MFG Part #:
- 1814B0110
$90.00 -
Hyperco Coil Over Spring 2.5in ID 14in Tall 1814B0100
HYPERCO
$90.00The Hyperco 1814B0100 coil-over spring delivers the precise vertical load control that separates competitive setups from mediocre ones. With a 100 lb/in spring rate and 14-inch package, this spring integrates seamlessly into custom coil-over assemblies...HYP1814B0100- SKU:
- HYP1814B0100
- Availability:
- Ships Same Business Day
- Weight:
- 2.90 LBS
- MFG Part #:
- 1814B0100
$90.00 -
Hyperco Coil Over Spring 3in ID 12in Tall 1.812E+203
HYPERCO
$117.00Coil-over suspension demands precision-engineered springs that can handle aggressive driving dynamics without compromising ride quality. The Hyperco 3-inch ID coil-over spring delivers consistent 200 lb/in spring rate performance, providing the stiffness...HYP1812E0200- SKU:
- HYP1812E0200
- Availability:
- Ships Same Business Day
- Weight:
- 5.10 LBS
- MFG Part #:
- 1.812E+203
$117.00 -
Hyperco Coil Over Spring 3in ID 12in Tall 1.812E+178
HYPERCO
$117.00A properly tuned suspension starts with the right spring rate, and this Hyperco coil-over delivers the consistency and durability that serious racers and suspension builders demand. At 175 lb/in, this spring rate balances responsive handling with enough...HYP1812E0175- SKU:
- HYP1812E0175
- Availability:
- Ships Same Business Day
- Weight:
- 4.20 LBS
- MFG Part #:
- 1.812E+178
$117.00 -
Hyperco Coil Over Spring 3in ID 12in Tall 1.812E+153
HYPERCO
$117.00Precision suspension tuning demands springs engineered to exact specifications, and the Hyperco Coil Over Spring delivers the consistency and durability required for both street and track applications. With a measured 150 lb/in spring rate, this...HYP1812E0150- SKU:
- HYP1812E0150
- Availability:
- Ships Same Business Day
- Weight:
- 4.65 LBS
- MFG Part #:
- 1.812E+153
$117.00 -
Hyperco Coil Over Spring 3in ID 12in Tall 1.812E+128
HYPERCO
$117.00Coil-over suspension geometry demands springs engineered for precision load control and consistent ride height across varying track conditions. The Hyperco 3-inch ID coil-over spring delivers a moderate 125 lb/in rate that balances responsiveness with...HYP1812E0125- SKU:
- HYP1812E0125
- Availability:
- Ships Same Business Day
- Weight:
- 4.65 LBS
- MFG Part #:
- 1.812E+128
$117.00Qty in Cart: 0Quantity:Price:$117.00Subtotal: -
Hyperco Coil Over Spring 3in ID 12in Tall 1.812E+103
HYPERCO
$117.00Precision suspension tuning demands a spring rate that matches your setup and vehicle weight distribution. The Hyperco Coil-Over Spring delivers a firm 100 lb/in rate in a compact 12-inch package, ideal for dedicated track builds and performance street...HYP1812E0100- SKU:
- HYP1812E0100
- Availability:
- Ships Same Business Day
- Weight:
- 2.99 LBS
- MFG Part #:
- 1.812E+103
$117.00 -
Hyperco Coil Over Spring 2.5in ID 12in Tall 1812B095
HYPERCO
$86.00A properly tuned suspension starts with the right spring rate, and this Hyperco coil-over delivers predictable, linear performance for both street and track applications. At 95 lb/in, this spring offers a balanced compromise between responsive handling...HYP1812B095- SKU:
- HYP1812B095
- Availability:
- Ships Same Business Day
- Weight:
- 2.30 LBS
- MFG Part #:
- 1812B095
$86.00 -
Hyperco Coil Over Spring 2.5in ID 12in Tall 1812B0850
HYPERCO
$86.00An 850 lb/in spring rate delivers the stiffness needed for precise suspension tuning on dedicated track builds and high-performance street cars. This Hyperco coil-over spring integrates seamlessly into custom suspension systems where adjustability and...HYP1812B0850- SKU:
- HYP1812B0850
- Availability:
- Ships Same Business Day
- Weight:
- 8.40 LBS
- MFG Part #:
- 1812B0850
$86.00 -
Hyperco Coil Over Spring 2.5in ID 12in Tall 1812B0800
HYPERCO
$86.00If you're building a serious suspension setup, spring rate consistency is everything—and the Hyperco 1812B0800 delivers the precision you need for predictable handling and load support. At 800 lb/in, this coil-over spring strikes the sweet spot between...HYP1812B0800- SKU:
- HYP1812B0800
- Availability:
- Ships Same Business Day
- Weight:
- 8.35 LBS
- MFG Part #:
- 1812B0800
$86.00 -
Hyperco Coil Over Spring 2.5in ID 12in Tall 1812B0700
HYPERCO
$86.00If you're building a performance suspension system, spring rate is everything—and a 700 lb/in spring gives you the stiffness needed for responsive handling without sacrificing ride quality on street or track. The Hyperco 1812B0700 coil-over spring...HYP1812B0700- SKU:
- HYP1812B0700
- Availability:
- Ships Same Business Day
- Weight:
- 8.64 LBS
- MFG Part #:
- 1812B0700
$86.00 -
Hyperco Coil Over Spring 2.5in ID 12in Tall 1812B0650
HYPERCO
$86.00If you're building a coil-over suspension system, spring rate is everything—and 650 lb/in delivers the responsive, predictable handling that separates competitive setups from the rest. The Hyperco 1812B0650 is engineered for precision damping control,...HYP1812B0650- SKU:
- HYP1812B0650
- Availability:
- Ships Same Business Day
- Weight:
- 7.30 LBS
- MFG Part #:
- 1812B0650
$86.00 -
Hyperco Coil Over Spring 2.5in ID 12in Tall 1812B0600
HYPERCO
$86.00If you're building a serious suspension setup, spring rate directly dictates how your vehicle handles load transfer and maintains chassis geometry under acceleration, braking, and cornering. The Hyperco 1812B0600 delivers a 600 lb/in rate in a compact...HYP1812B0600- SKU:
- HYP1812B0600
- Availability:
- Ships Same Business Day
- Weight:
- 6.96 LBS
- MFG Part #:
- 1812B0600
$86.00 -
Hyperco Coil Over Spring 2.5in ID 12in Tall 1812B0550
HYPERCO
$86.00Precision suspension tuning demands a coil-over spring that delivers consistent, predictable performance lap after lap. The Hyperco 1812B0550 offers a 550 lb/in spring rate engineered for applications requiring moderate to firm spring loads—ideal for...HYP1812B0550- SKU:
- HYP1812B0550
- Availability:
- Ships Same Business Day
- Weight:
- 6.84 LBS
- MFG Part #:
- 1812B0550
$86.00
