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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Allstar Performance Trailing Arm Bushing GM w/Rubber Insert ALL56247
ALLSTAR PERFORMANCE
$53.99Trailing Arm Bushing GM w/Rubber InsertTrailing Arm BushingRubber InsertBlackGM A-Body / G-Body 1965-88EachALL56247- SKU:
- ALL56247
- Availability:
- Ships Same Business Day
- Weight:
- 0.65 LBS
- MFG Part #:
- ALL56247
$53.99 -
Allstar Performance Trailing Arm Bushing GM ALL56245
ALLSTAR PERFORMANCE
$17.49Trailing Arm Bushing GM Trailing Arm BushingPolyurethaneBlackGM A-Body / G-Body 1965-88EachALL56245- SKU:
- ALL56245
- Availability:
- Ships Same Business Day
- Weight:
- 0.70 LBS
- MFG Part #:
- ALL56245
$17.49Qty in Cart: 0Quantity:Price:$17.49Subtotal: -
Allstar Performance Steel Double Adjuster 3/4in ALL56197
ALLSTAR PERFORMANCE
$13.99Steel Double Adjuster 3/4inLinkage Adjuster3/4-16 in Right Hand Male Thread3/4-16 in Left Hand Male ThreadSteelBlack OxideKitALL56197- SKU:
- ALL56197
- Availability:
- Ships Same Business Day
- Weight:
- 0.80 LBS
- MFG Part #:
- ALL56197
$13.99 -
Allstar Performance Rear Lower Spring Cup ALL56124
ALLSTAR PERFORMANCE
$22.99Rear Lower Spring Cup Spring CupLowerWeld-OnSteelBlack Paint5 in Springs3 in OD Axle TubesEachALL56124- SKU:
- ALL56124
- Availability:
- Ships Same Business Day
- Weight:
- 2.47 LBS
- MFG Part #:
- ALL56124
$22.99 -
Allstar Performance LW Upper Spring Cup ALL56113
ALLSTAR PERFORMANCE
$24.99LW Upper Spring Cup Spring CupUpper5 or 5-1/2 OD SpringsLightweightSteelBlack Powder CoatUniversalEachALL56113- SKU:
- ALL56113
- Availability:
- Ships Same Business Day
- Weight:
- 1.24 LBS
- MFG Part #:
- ALL56113
$24.99 -
Allstar Performance Jack Bolt Steel 11in Coarse Thread ALL56107
ALLSTAR PERFORMANCE
$16.99Jack Bolt Steel 11in Coarse ThreadJack Bolt1-8 in Thread11 in LongSteelCadmiumUniversalEachALL56107- SKU:
- ALL56107
- Availability:
- Ships Same Business Day
- Weight:
- 2.01 LBS
- MFG Part #:
- ALL56107
$16.99 -
Allstar Performance Jack Bolt Steel 8in Coarse Thread ALL56106
ALLSTAR PERFORMANCE
$14.99Jack Bolt Steel 8in Coarse ThreadJack Bolt1-8 in Thread8 in LongSteelCadmiumUniversalEachALL56106- SKU:
- ALL56106
- Availability:
- Ships Same Business Day
- Weight:
- 1.43 LBS
- MFG Part #:
- ALL56106
$14.99 -
Allstar Performance Shaft Collar 3/4in ALL52140
ALLSTAR PERFORMANCE
$11.99Shaft Collar 3/4in Shaft Collar3/4 in IDClamp-OnAluminumNaturalEachALL52140- SKU:
- ALL52140
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
- MFG Part #:
- ALL52140
$11.99 -
AFCO 14 Series Street Stock Shock Package - Stop-and-Go / Slick Track Setup (4 Shocks) | Traction for Tight or Low-Grip Tracks
AFCO RACING PRODUCTS
$519.96For tight, slick, or stop-and-go tracks needing quick hook-up, this package focuses on softer rebound for bite and balanced compression to rotate the car without sliding. The sealed 14 Series design excels in low-cost, reliable traction setups. Package...AFCSHOCKPACK12- SKU:
- AFCSHOCKPACK12
- Availability:
- Usually Ships Within 72 Hours
- Weight:
- 10.00 LBS
$519.96 -
AFCO 14 Series Street Stock Shock Package - Momentum / Rough Track Setup (4 Shocks) | Carry Speed on Fast or Bumpy Tracks
AFCO RACING PRODUCTS
$519.96Ideal for faster momentum tracks or rough surfaces, this 14 Series package uses mid-soft valving for better compliance over bumps while keeping forward drive. Sealed twin-tube reliability helps maintain control without fading on longer runs. Package...AFCSHOCKPACK11- SKU:
- AFCSHOCKPACK11
- Availability:
- Usually Ships Within 72 Hours
- Weight:
- 10.00 LBS
$519.96 -
AFCO 14 Series Street Stock Shock Package - All-Around Balanced Setup (4 Shocks) | Reliable Handling for Average Tracks
AFCO RACING PRODUCTS
$519.96The AFCO 14 Series twin-tube sealed shocks provide dependable, low-cost performance for street stock racers on average momentum tracks. Steel body with fixed bearing ends, grooved for coil-over options, and sealed for strict compliance—delivers...AFCSHOCKPACK10- SKU:
- AFCSHOCKPACK10
- Availability:
- Usually Ships Within 72 Hours
- Weight:
- 10.00 LBS
$519.96 -
AFCO 88 Series IMCA Modified Shock Package – Premium Tacky/Wet Track Setup (4 Shocks) | Firm Control for High-Bite Surfaces
AFCO RACING PRODUCTS
$2,099.80Charge aggressively on tacky, moist, or high-grip tracks with the 88 Series' firm-yet-responsive damping. The CNC-machined pistons and disc valving provide quick compression for stability, while balanced rebound handles bumps—preventing roll and...AFCSHOCKPACK9- SKU:
- AFCSHOCKPACK9
- Availability:
- Usually Ships Within 72 Hours
- Weight:
- 4.00 LBS
$2,099.80 -
AFCO 88 Series IMCA Modified Shock Package – Premium Dry/Slick Track Setup (4 Shocks) | Maximum Traction for Low-Grip Conditions
AFCO RACING PRODUCTS
$2,099.80Master slick, dry, or burned-off tracks with the 88 Series' advanced disc valving and low-pressure capability—delivering exceptional compliance and bite. The lightweight bulb reservoir and CNC pistons enhance small-bump sensitivity, while valving...AFCSHOCKPACK8- SKU:
- AFCSHOCKPACK8
- Availability:
- Usually Ships Within 72 Hours
- Weight:
- 4.00 LBS
$2,099.80 -
AFCO 88 Series IMCA Modified Shock Package – Premium All-Around Standard Setup (4 Shocks) | Tunable Monotube Balance for Versatile Tracks
AFCO RACING PRODUCTS
$2,099.80The AFCO 88 Series brings Modified-specific engineering to your IMCA setup: advanced deflective disc valving, CNC pistons, low rod pressure 1/2" shaft, and a lightweight bulb reservoir for superior clearance and reduced unsprung weight. Nickel-plated for...AFCSHOCKPACK7- SKU:
- AFCSHOCKPACK7
- Availability:
- Usually Ships Within 72 Hours
- Weight:
- 4.00 LBS
$2,099.80 -
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 is tacky, wet, or freshly worked and grip is through the roof, the AFCO 86 Series base valve gives you the best of both worlds: firm compression for quick response and precise low-speed control that prevents the car from “laying...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
$2,399.80The AFCO 86 Series shines brightest on slick tracks because its integrated base valve allows you to run significantly lower nitrogen pressure than any standard shock. This creates superior small-bump compliance, better tire-to-track contact, and that...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 widely regarded as the premium steel shock for IMCA Modified racers who want more than a basic monotube. Unlike the entry-level 74 Series, the 86 features a built-in base valve that gives you precise low-speed damping control,...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
$1,079.80Take charge on tacky, moist, or high-grip tracks with this firmer AFCO 74 Series IMCA shock package. Engineered for aggressive driving in sticky conditions, it provides quick response, reduced roll, and stability to prevent the car from "laying over" too...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
$1,079.80Dominate dry, slick, or worn-out tracks with this specialized AFCO 74 Series shock package built for low-traction scenarios. Optimized valving increases compliance and bite, helping your IMCA Modified hook up better in slick summer conditions or when the...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
$1,079.80Get consistent performance on most dirt tracks with this versatile AFCO 74 Series IMCA-approved shock package. Designed specifically for IMCA Modifieds, this all-around setup delivers balanced damping for smooth corner entry, excellent weight transfer,...AFCSHOCKPACK1- SKU:
- AFCSHOCKPACK1
- Availability:
- Ships within 72 hours
- Weight:
- 12.00 LBS
$1,079.80
