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
-
On Sale
Wehrs Jack Screw 1in-8 UNC 11in OAL WM304B-11
WEHRS MACHINE
MSRP: $25.99Now: $25.00Was: $25.99Precision jack screws are essential for adjustable suspension geometry, allowing you to dial in ride height and chassis balance with repeatable accuracy. The Wehrs 1in-8 UNC design is the industry standard for circle track and road racing applications,...WEHWM304B-11- SKU:
- WEHWM304B-11
- Availability:
- Ships Same Business Day
- Weight:
- 2.13 LBS
MSRP: $25.99Now: $25.00Was: $25.99 -
On Sale
Wehrs Swivel Spring Cup 5.5in Drop Bearing Tall WM285D-5.5
WEHRS MACHINE
MSRP: $70.99Now: $70.00Was: $70.99If you're building a suspension system that demands precision geometry and reliable load transfer, the Wehrs Swivel Spring Cup is engineered to deliver exactly that. This drop bearing design allows for critical suspension articulation while maintaining...WEHWM285D-5.5- SKU:
- WEHWM285D-5.5
- Availability:
- Ships Same Business Day
- Weight:
- 1.98 LBS
MSRP: $70.99Now: $70.00Was: $70.99 -
On Sale
Wehrs Shaft Replacment for Slider WM251-0 2in Ext WM251-12
WEHRS MACHINE
MSRP: $35.99Now: $35.00Was: $35.99If you're running a coil spring slider suspension setup, a worn or damaged shaft is a direct path to unpredictable handling and premature component failure. This Wehrs replacement shaft restores the precise sliding action your suspension needs to...WEHWM251-12- SKU:
- WEHWM251-12
- Availability:
- Ships Same Business Day
- Weight:
- 0.85 LBS
MSRP: $35.99Now: $35.00Was: $35.99 -
On Sale
Wehrs Spring Slider 5in Dual Bearing 21in Fine Thread WM251-0
WEHRS MACHINE
MSRP: $275.99Now: $270.00Was: $275.99Precision coil spring adjustment is non-negotiable in competitive racing, and the Wehrs Spring Slider delivers the fine-tuning control you need to dial in suspension geometry mid-event. The dual bearing design minimizes friction while the 21-inch...WEHWM251-0- SKU:
- WEHWM251-0
- Availability:
- Ships Same Business Day
- Weight:
- 8.95 LBS
MSRP: $275.99Now: $270.00Was: $275.99 -
On Sale
Wehrs Shock Mount 1-1/2in Dia 2-1/4in Below C/L WM221150S
WEHRS MACHINE
MSRP: $75.99Now: $74.00Was: $75.99Precision shock mounting is critical for consistent suspension geometry and predictable handling characteristics on the track. The Wehrs Shock Mount delivers a clean, clamp-on design that allows you to dial in your suspension setup without compromising...WEHWM221150S- SKU:
- WEHWM221150S
- Availability:
- Ships Same Business Day
- Weight:
- 2.12 LBS
MSRP: $75.99Now: $74.00Was: $75.99 -
On Sale
Wehrs Panhard Bar Drop Center Over The Top Alum WM220B-3
WEHRS MACHINE
MSRP: $250.99Now: $172.00Was: $250.99A properly tuned Panhard bar is essential for maintaining lateral chassis control and reducing body roll during high-speed cornering. This Wehrs aluminum drop center design lowers your roll center to match modern suspension geometry, giving you more...WEHWM220B-3- SKU:
- WEHWM220B-3
- Availability:
- Ships Same Business Day
- Weight:
- 5.58 LBS
MSRP: $250.99Now: $172.00Was: $250.99 -
On Sale
Wehrs Shock Plate Steel Single Shear Straight Slot WM200-3-QA-S
WEHRS MACHINE
MSRP: $45.99Now: $45.00Was: $45.99Precision suspension adjustability separates competitive dirt late model teams from the rest of the field. The Wehrs Shock Plate Steel Single Shear Straight Slot gives you the modularity to dial in your chassis geometry for any track condition, with...WEHWM200-3-QA-S- SKU:
- WEHWM200-3-QA-S
- Availability:
- Ships Same Business Day
- Weight:
- 2.76 LBS
MSRP: $45.99Now: $45.00Was: $45.99 -
On Sale
Wehrs Bracket Steel Lower Clamp WM200-24
WEHRS MACHINE
MSRP: $50.99Now: $50.00Was: $50.99Lowering your suspension geometry is critical for improving weight transfer, reducing body roll, and dialing in your chassis setup—and the Wehrs Bracket Steel Lower Clamp gives you the adjustability to dial it in precisely. This bolt-on drop mount...WEHWM200-24- SKU:
- WEHWM200-24
- Availability:
- Ships Same Business Day
- Weight:
- 3.42 LBS
MSRP: $50.99Now: $50.00Was: $50.99 -
On Sale
Wehrs Pinion Mnt Angled Extra Tall +2.0in WM197-2
WEHRS MACHINE
MSRP: $250.99Now: $246.00Was: $250.99Proper pinion angle is critical to rear-end performance and driveline longevity, and this angled mount gives you the adjustability to dial in the perfect geometry for your setup. The extra 2-inch height extension accommodates lifted vehicles or custom...WEHWM197-2- SKU:
- WEHWM197-2
- Availability:
- Ships Same Business Day
- Weight:
- 6.00 LBS
MSRP: $250.99Now: $246.00Was: $250.99 -
On Sale
Wehrs Thrust Bearing 5in Torrington WM165BO
WEHRS MACHINE
MSRP: $33.99Now: $33.00Was: $33.99Precision suspension tuning demands a thrust bearing that eliminates binding and maintains consistent spring pressure under load. The Wehrs Torrington WM165BO delivers the reliability professional racers and serious enthusiasts depend on when dialing in...WEHWM165BO- SKU:
- WEHWM165BO
- Availability:
- Ships Same Business Day
- Weight:
- 0.27 LBS
MSRP: $33.99Now: $33.00Was: $33.99 -
On Sale
U-B Control Arm Lower Camaro Right 32-1230-R
U-B MACHINE
MSRP: $233.99Now: $226.97Was: $233.99If you're restoring or upgrading a classic F-Body Camaro, the factory control arm geometry won't cut it for modern driving demands or track performance. This U-B lower control arm delivers the precise suspension geometry you need for responsive handling,...UBM32-1230-R- SKU:
- UBM32-1230-R
- Availability:
- Ships Same Business Day
- Weight:
- 11.25 LBS
MSRP: $233.99Now: $226.97Was: $233.99Qty in Cart: 0Quantity:Price:MSRP: $233.99Now: $226.97Was: $233.99Subtotal: -
On Sale
U-B Control Arm 12.5in Monoball BJ Quad Bearing 16-1223-A-QB
U-B MACHINE
MSRP: $165.99Now: $161.01Was: $165.99Precision handling demands a control arm that can withstand extreme cornering loads and repetitive stress cycles without flex or binding. The U-B Control Arm 12.5in with quad bearing design delivers the rigidity and smooth articulation required for...UBM16-1223-A-QB- SKU:
- UBM16-1223-A-QB
- Availability:
- Ships Same Business Day
- Weight:
- 4.85 LBS
MSRP: $165.99Now: $161.01Was: $165.99Qty in Cart: 0Quantity:Price:MSRP: $165.99Now: $161.01Was: $165.99Subtotal: -
Bump Spring Round Wire SBS4500
SWIFT SPRINGS
$92.65Bump stop springs are critical suspension components that prevent metal-to-metal contact at full compression, protecting your chassis and suspension geometry during aggressive cornering, braking, and track work. The SBS4500 delivers a stiff 4500 lb/in...SWISBS4500- SKU:
- SWISBS4500
- Availability:
- Ships Same Business Day
- Weight:
- 0.90 LBS
$92.65 -
Bump Spring Round Wire SBS3500
SWIFT SPRINGS
$92.65Bump springs are critical suspension components that prevent metal-to-metal contact when your suspension reaches full compression, protecting your chassis and components from catastrophic damage during hard cornering, braking, or track conditions. The...SWISBS3500- SKU:
- SWISBS3500
- Availability:
- Ships Same Business Day
- Weight:
- 0.85 LBS
$92.65 -
Helper Spring C/O 2.5in 5.0in Tall 50lb H025-152-050
SWIFT SPRINGS
$76.50Helper springs are essential for fine-tuning suspension performance, especially when you need to adjust ride height or support increased loads without compromising ride quality. This 50lb coil spring provides precise load support and works seamlessly as...SWIH025-152-050- SKU:
- SWIH025-152-050
- Availability:
- Ships Same Business Day
- Weight:
- 1.80 LBS
- Spring Rate:
- 50 lb.
- Spring Height:
- 5"
- Spring ID:
- 5"
$76.50 -
Helper Spring C/O 2.5in 5.3in Tall 4lb H025-135-0008
SWIFT SPRINGS
$56.95Helper springs are essential for maintaining proper suspension geometry and ride height, especially when running lowered setups or adding payload capacity. A 4lb spring rate makes this ideal for fine-tuning suspension preload without overwhelming your...SWIH025-135-0008- SKU:
- SWIH025-135-0008
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- Spring Rate:
- 4 lb.
- Spring Height:
- 5.3"
- Spring ID:
- 5.3"
$56.95 -
Coil Spring Conv 20in x 5in 65lb 200-500-065
SWIFT SPRINGS
$145.35A properly matched coil spring is fundamental to any suspension build—this 65 lb/in conventional spring delivers predictable, linear rate characteristics ideal for street and road course applications where consistent handling matters. The 20-inch length...SWI200-500-065- SKU:
- SWI200-500-065
- Availability:
- Ships Same Business Day
- Weight:
- 7.05 LBS
- Spring Rate:
- 65 lb.
- Spring Height:
- 20"
- Spring ID:
- 5"
$145.35 -
Coilover Spring 18in x 5in x 50lb 2.5in ID 180-2550-050 BP
SWIFT SPRINGS
$136.85When you're tuning suspension geometry for track performance, spring rate consistency directly impacts your ability to dial in predictable handling characteristics. This 50 lb/in coilover spring delivers the linear load curve you need for precision...SWI180-2550-050-BP- SKU:
- SWI180-2550-050-BP
- Availability:
- Ships Same Business Day
- Weight:
- 5.00 LBS
- Spring Rate:
- 50 lb.
- Spring Height:
- 18"
- Spring ID:
- 5"
$136.85 -
Coil Spring Conv 16in x 5in 65lb 160-500-065
SWIFT SPRINGS
$128.35A properly tuned suspension starts with the right spring rate, and this 65 lb/in coil spring delivers consistent load support for street, road course, and light track applications. The 16-inch length and 5-inch inner diameter fit common suspension...SWI160-500-065- SKU:
- SWI160-500-065
- Availability:
- Ships Same Business Day
- Weight:
- 6.20 LBS
- Spring Rate:
- 65 lb.
- Spring Height:
- 16"
- Spring ID:
- 5"
$128.35 -
Coilover Spring 16in x 3.5in x 175lb 160-350-175 BP
SWIFT SPRINGS
$169.15A properly tuned suspension demands springs engineered to exact specifications, and this Bulletproof coilover spring delivers the precision your setup demands. With a 175 lb/in rate and 16-inch length, it's built to handle serious corner speeds while...SWI160-350-175BP- SKU:
- SWI160-350-175BP
- Availability:
- Ships Same Business Day
- Weight:
- 7.40 LBS
- Spring Rate:
- 175 lb.
- Spring Height:
- 16"
- Spring ID:
- 3.5"
$169.15Qty in Cart: 0Quantity:Price:$169.15Subtotal:
