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!
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AFCO 86 Series IMCA Modified Shock Package - Premium Tacky/Wet Track Setup (4 Shocks) | Base Valve Firm Control for High-Bite Surfaces
AFCO RACING PRODUCTS
$2,399.80When the track becomes tacky and grip levels climb, your shock package needs to deliver firm compression response without sacrificing the precise low-speed control that keeps your Modified planted through corners. The AFCO 86 Series base valve is...AFCSHOCKPACK6- SKU:
- AFCSHOCKPACK6
- Availability:
- Usually Ships Within 72 Hours
- Weight:
- 12.00 LBS
$2,399.80 -
AFCO 86 Series IMCA Modified Shock Package - Premium Dry/Slick Track Setup (4 Shocks) | Base Valve Maximum Traction for Low-Grip Conditions
AFCO RACING PRODUCTS
$2,399.80When the track goes slick and grip disappears, most shocks force you to run high nitrogen pressure just to stay off the ground—and that kills the small-bump compliance you need to find traction. The AFCO 86 Series solves this with an integrated base...AFCSHOCKPACK5- SKU:
- AFCSHOCKPACK5
- Availability:
- Usually Ships Within 72 Hours
- Weight:
- 12.00 LBS
$2,399.80 -
AFCO 86 Series IMCA Modified Shock Package - Premium All-Around Standard Setup (4 Shocks) | Base Valve Balanced Handling for Versatile Tracks
AFCO RACING PRODUCTS
$2,399.80The AFCO 86 Series is the go-to shock for IMCA Modified racers who demand more control than basic monotubes can deliver. Its built-in base valve gives you precise low-speed damping adjustment and dramatically lower nitrogen pressure, translating to...AFCSHOCKPACK4- SKU:
- AFCSHOCKPACK4
- Availability:
- Usually Ships Within 72 Hours
- Weight:
- 12.00 LBS
$2,399.80 -
AFCO 74 Series IMCA Modified Shock Package - Tacky/Wet Track Setup (4 Shocks) | Firm Control for High-Bite Surfaces
AFCO RACING PRODUCTS
$1,079.80When tacky conditions and high-grip surfaces define your race night, you need shocks engineered to respond instantly without excessive roll. This AFCO 74 Series package delivers the firmer compression and balanced rebound geometry that keeps your IMCA...AFCSHOCKPACK3- SKU:
- AFCSHOCKPACK3
- Availability:
- Ships within 72 hours
- Weight:
- 12.00 LBS
$1,079.80 -
AFCO 74 Series IMCA Modified Shock Package - Dry/Slick Track Setup (4 Shocks) | Maximum Traction for Low-Grip Conditions
AFCO RACING PRODUCTS
$1,079.80When the track dries out and grip disappears, most shocks fail to adapt—yours won't. This AFCO 74 Series package is purpose-built for low-traction conditions, with asymmetrical valving across all four corners to maximize traction and compliance exactly...AFCSHOCKPACK2- SKU:
- AFCSHOCKPACK2
- Availability:
- Ships within 72 hours
- Weight:
- 12.00 LBS
$1,079.80 -
AFCO 74 Series IMCA Modified Shock Package - All-Around Standard Setup (4 Shocks) | Balanced Handling for Average Tracks
AFCO RACING PRODUCTS
$1,079.80Balanced damping across all four corners is the foundation of predictable handling on varied track conditions. The AFCO 74 Series delivers consistent performance week after week without requiring constant suspension tuning, letting you focus on driving...AFCSHOCKPACK1- SKU:
- AFCSHOCKPACK1
- Availability:
- Ships within 72 hours
- Weight:
- 12.00 LBS
$1,079.80 -
Jack Bolt Sleeve 1-1/8in-12 Steel 2-inch Long
J J MOTORSPORTS
MSRP: $12.99$11.95Jack bolt sleeves are essential hardware for securing critical fasteners on high-performance engines and chassis components where vibration and thermal cycling demand superior holding power. This 1-1/8in-12 steel sleeve distributes clamping force over a...RCSU-0066- SKU:
- RCSU-0066
- Availability:
- Ships Same Business Day
- Weight:
- 0.56 LBS
MSRP: $12.99$11.95 -
Weight Jack Bolt Nuts 1-1/8 -12 Thin Skinny Jam Nuts RH 2 Pack
J J MOTORSPORTS
$10.95Weight jack bolt assemblies demand precision fasteners that won't strip, slip, or fail under repeated adjustment cycles. These 1-1/8"-12 jam nuts lock your weight jacks in place with zero play, ensuring consistent corner balance and repeatable setup...RCSU-0065- SKU:
- RCSU-0065
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
$10.95 -
Bilstein 2 inch Shock Extension Extender M12-1.0 Steel Bilstein Shocks
J J MOTORSPORTS
$12.95When you're running Bilstein shocks on a lifted or modified suspension, ride height and shock geometry matter. This 2-inch extension restores proper damper positioning and suspension travel, ensuring your shocks perform as engineered. A straightforward...RCSU-0098- SKU:
- RCSU-0098
- Availability:
- Ships Same Business Day
- Weight:
- 0.70 LBS
$12.95 -
Fox 2 inch Shock Extension Extender 7/16-20 Thread Black Steel Integra
J J MOTORSPORTS
$12.95When you're lowering your suspension for better aerodynamics and handling, shock length becomes critical—too short and you lose travel; too long and geometry suffers. This Fox shock extension extender adds exactly 2 inches of length, allowing you to...RCSU-0097- SKU:
- RCSU-0097
- Availability:
- Ships Same Business Day
- Weight:
- 0.70 LBS
$12.95 -
WHIPITLIGHTRODS Light Rod Harness - 3" - Bluetooth 45-400
WHIPITLIGHTRODS
$49.00If your whip light harness has taken damage from weather, UV exposure, or track use, this replacement harness restores full functionality without replacing your entire light rod assembly. The waterproof connector design ensures reliable performance in...20402957- SKU:
- 20402957
- Availability:
- Ships Same Business Day
- Weight:
- 0.56 LBS
$49.00 -
WHIPITLIGHTRODS Light Rod Harness - Bluetooth and Remote - Single 47-700
WHIPITLIGHTRODS
$49.00If you're running Premium Bluetooth RGB Chasing Whip It Light Rods, a reliable harness is non-negotiable—it's the backbone that keeps your lighting synchronized, weather-sealed, and responsive. This replacement harness eliminates connection drops and...20402958- SKU:
- 20402958
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
$49.00 -
WHIPITLIGHTRODS Light Rod Harness - Remote - Pair 45-200
WHIPITLIGHTRODS
$45.00If your whip light setup has seen better days or you're expanding your LED rod collection, a reliable replacement harness is essential. This remote-compatible harness eliminates connection issues and weatherproofing concerns, keeping your RGB lighting...20402955- SKU:
- 20402955
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
$45.00 -
WHIPITLIGHTRODS Light Rod Harness - 3' - Bluetooth 45-300
WHIPITLIGHTRODS
$45.00If your Bluetooth RGB whip light harness has been damaged, corroded, or simply worn out from heavy use, this replacement harness gets you back in action without replacing the entire light rod assembly. The waterproof connector design ensures reliable...20402956- SKU:
- 20402956
- Availability:
- Ships Same Business Day
- Weight:
- 0.31 LBS
$45.00 -
WHIPITLIGHTRODS 5' Light Rod Whip - Black SB-RGBR-151
WHIPITLIGHTRODS
$220.00Visibility is non-negotiable in motorsports, whether you're on the track, at an event, or towing at night. The Whip It Light Rod delivers 360° of coverage with densely-packed RGB LEDs that cut through darkness and draw attention from every angle. With 20...20402923- SKU:
- 20402923
- Availability:
- Ships Same Business Day
- Weight:
- 3.30 LBS
$220.00 -
On Sale
WHIPITLIGHTRODS 5' Light Rod Whip - Pair - White SB-RGBR-252
WHIPITLIGHTRODS
MSRP: $400.00Now: $256.00Was: $400.00Visibility is non-negotiable on the track or trail—and these RGB light rods deliver unmatched presence with 360° of brightness wrapped around a virtually indestructible fiberglass core. The spiraled LED design packs more illumination per foot than...20402926- SKU:
- 20402926
- Availability:
- Ships Same Business Day
- Weight:
- 5.05 LBS
MSRP: $400.00Now: $256.00Was: $400.00 -
WHIPITLIGHTRODS 3' Light Rod Whip - Bluetooth - Pair - Black SB-RGBBT-132
WHIPITLIGHTRODS
$328.00Night runs demand visibility that commands attention. These WhipItLightRods deliver 360° of illumination with a spiral LED design that outputs 40% more brightness than standard light rods, ensuring you're visible from every angle. Bluetooth app control...20402929- SKU:
- 20402929
- Availability:
- Ships Same Business Day
- Weight:
- 3.95 LBS
$328.00Qty in Cart: 0Quantity:Price:$328.00Subtotal: -
WHIPITLIGHTRODS 5' Light Rod Whip - Bluetooth - Black SB-RGBBT-151
WHIPITLIGHTRODS
$230.00Whether you're towing at night, attending track events, or need maximum visibility on the road, the WHIPITLIGHTRODS 5' Light Rod Whip delivers 360° of illumination that puts you on the map. With 40% brighter LEDs than previous generations and...20402931- SKU:
- 20402931
- Availability:
- Ships Same Business Day
- Weight:
- 0.01 LBS
$230.00 -
WHIPITLIGHTRODS 5' Light Rod Whip - Bluetooth - Pair - Black SB-RGBBT-152
WHIPITLIGHTRODS
$430.00Whether you're tackling the track, the trail, or the street, visibility is non-negotiable—and these Whipitlightrods deliver uncompromising light coverage from every angle. The 360° LED spiral design wraps the entire 5-foot length with 40% brighter output...20402933- SKU:
- 20402933
- Availability:
- Ships Same Business Day
- Weight:
- 3.25 LBS
$430.00 -
On Sale
WHIPITLIGHTRODS 5' Light Rod Whip - Bluetooth - Pair - White SB-RGBBT-252
WHIPITLIGHTRODS
MSRP: $410.95Now: $263.00Was: $410.95If you're running a competition vehicle or want maximum visibility in low-light conditions, these LED whips deliver serious illumination with full customization control. The 360° spiral design wraps LEDs around the entire rod length, giving you 40% more...20402934- SKU:
- 20402934
- Availability:
- Ships Same Business Day
- Weight:
- 3.25 LBS
MSRP: $410.95Now: $263.00Was: $410.95Qty in Cart: 0Quantity:Price:MSRP: $410.95Now: $263.00Was: $410.95Subtotal:
