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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Spring Rubber C/O 90A Blue .75in Coil Space RE-SR250-0750-90
RE SUSPENSION
$46.99Spring rubbers are critical isolation components that reduce vibration transfer, protect adjacent components from shock loads, and maintain consistent suspension geometry under dynamic conditions. A 90A durometer rating provides the ideal balance between...RESRE-SR250-0750-90- SKU:
- RESRE-SR250-0750-90
- Availability:
- Ships Same Business Day
- Weight:
- 0.32 LBS
$46.99Qty in Cart: 0Quantity:Price:$46.99Subtotal: -
Spring Rubber C/O 80A Yellow .75in Coil Space RE-SR250-0750-80
RE SUSPENSION
$46.99Proper suspension geometry depends on isolation components that won't compress or degrade under repeated load cycles. This 80A durometer spring rubber maintains consistent ride height and suspension response across extended track sessions and street...RESRE-SR250-0750-80- SKU:
- RESRE-SR250-0750-80
- Availability:
- Ships Same Business Day
- Weight:
- 0.33 LBS
$46.99 -
Spring Rubber C/O 70A Green .75in Coil Space RE-SR250-0750-70
RE SUSPENSION
$46.99Spring rubbers are critical suspension components that isolate vibration, reduce noise transmission, and protect your chassis from impact harshness—essential whether you're tuning a street car or managing suspension geometry on a dedicated race platform...RESRE-SR250-0750-70- SKU:
- RESRE-SR250-0750-70
- Availability:
- Ships Same Business Day
- Weight:
- 0.33 LBS
$46.99 -
Spring Rubber C/O 60A Purple .75in Coil Space RE-SR250-0750-60
RE SUSPENSION
$46.99Spring rubbers are critical suspension components that isolate vibration, reduce noise transmission, and protect your chassis from impact loads during hard cornering and acceleration. The 60A durometer rating on this unit strikes the ideal balance...RESRE-SR250-0750-60- SKU:
- RESRE-SR250-0750-60
- Availability:
- Ships Same Business Day
- Weight:
- 0.32 LBS
$46.99 -
Quickcar 5/8" Aluminum Scalloped Suspension Tube 48.5" 62-485
QUICKCAR RACING PRODUCTS
$59.91If you're building a suspension system that demands precision and minimal weight penalty, this Quickcar aluminum suspension tube delivers both. The scalloped design reduces rotational mass while maintaining rigidity, and the 48.5" length fits standard...QRP62-485- SKU:
- QRP62-485
- Availability:
- Ships Same Business Day
- Weight:
- 2.50 LBS
$59.91 -
Quickcar 5/8 Aluminum Scalloped Suspension Tube 47.5in 62-475
QUICKCAR RACING PRODUCTS
$58.59If you're building a high-performance suspension system, you need a tube that delivers rigidity without excess weight—this Quickcar aluminum suspension tube does exactly that. The scalloped design strengthens critical stress points while shaving pounds...QRP62-475- SKU:
- QRP62-475
- Availability:
- Ships Same Business Day
- Weight:
- 2.60 LBS
$58.59Qty in Cart: 0Quantity:Price:$58.59Subtotal: -
Quickcar 5/8" Aluminum Scalloped Suspension Tube 33" 62-330
QUICKCAR RACING PRODUCTS
$40.65Quickcar's aluminum scalloped suspension tubes deliver weight savings without sacrificing strength—essential for fine-tuning suspension geometry on dedicated track cars and race builds. The 5/8" diameter with scalloped design reduces reciprocating mass...QRP62-330- SKU:
- QRP62-330
- Availability:
- Ships Same Business Day
- Weight:
- 1.20 LBS
$40.65 -
Quickcar 5/8 Aluminum Scalloped Suspension Tube 32in 5/8-18 Female Threads 62-320
QUICKCAR RACING PRODUCTS
$39.80If you're building or maintaining a high-performance suspension system, tube strength directly impacts handling precision and component longevity. The Quickcar 5/8 Aluminum Scalloped Suspension Tube delivers a 35% strength increase over conventional...QRP62-320- SKU:
- QRP62-320
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
$39.80 -
QuickCar 5/8 Aluminum Scalloped Suspension Tube 27.5in 62-275
QUICKCAR RACING PRODUCTS
$36.30If you're building a suspension system that demands precision and reliability, this QuickCar aluminum suspension tube delivers the weight savings and structural integrity your setup needs. The scalloped design reduces unsprung mass without compromising...QRP62-275- SKU:
- QRP62-275
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
$36.30 -
QA1 Shock Tuning Kit Advance TK09
QA1
$334.95Fine-tuning your suspension's damping characteristics separates competitive lap times from mediocre ones. The QA1 Shock Tuning Kit Advance TK09 gives you adjustable control over your shocks' internal valving, allowing you to dial in the exact response...QA1TK09- SKU:
- QA1TK09
- Availability:
- Ships Same Business Day
- Weight:
- 1.75 LBS
$334.95 -
QA1 Shock Stud Bushing Kit w/Jam Nut MK03
QA1
$14.95Worn shock bushings compromise suspension geometry and introduce unwanted play that degrades handling precision and accelerates component wear. The QA1 Shock Stud Bushing Kit MK03 delivers a direct replacement solution with quality rubber bushings and...QA1MK03- SKU:
- QA1MK03
- Availability:
- Ships Same Business Day
- Weight:
- 0.21 LBS
$14.95 -
QA1 1-7/8in Coil-Over Kit 70 Series CK7001
QA1
$82.95Precision suspension tuning demands a coil-over system that responds to your setup changes without compromise. The QA1 1-7/8in Coil-Over Kit delivers adjustable spring rates and dampening control in a bolt-on package, giving you the fine-tuning...QA1CK7001- SKU:
- QA1CK7001
- Availability:
- Ships Same Business Day
- Weight:
- 0.54 LBS
$82.95 -
QA1 T-Bar Kit 5.0in OAL 3/4in OD BAR500K
QA1
$29.95Converting your suspension geometry requires precision engineering, and the QA1 T-Bar Kit delivers exactly that. This shock conversion system bridges the gap between loop mount and 5-inch T-bar configurations, giving you the flexibility to optimize your...QA1BAR500K- SKU:
- QA1BAR500K
- Availability:
- Ships Same Business Day
- Weight:
- 0.51 LBS
$29.95 -
QA1 Linkage Adjuster 5/8-18 LH Male x 5/8-18 RH Fem AA10-10
QA1
$18.99Precise suspension geometry is non-negotiable when you're chasing lap times or dialing in your setup for competition. The QA1 Linkage Adjuster gives you the fine-tuning capability to adjust your suspension linkage length without breaking down your entire...QA1AA10-10- SKU:
- QA1AA10-10
- Availability:
- Ships Same Business Day
- Weight:
- 0.14 LBS
$18.99 -
QA1 Coil Spring 2.5in ID x 9in Black 9HT300B
QA1
$79.95When you're building a coil-over suspension system, spring rate consistency directly impacts handling precision and ride quality. The QA1 9HT300B delivers a stiff 300 lb/in rate in a compact 2.5-inch bore, making it ideal for high-travel applications...QA19HT300B- SKU:
- QA19HT300B
- Availability:
- Ships Same Business Day
- Weight:
- 3.40 LBS
$79.95 -
QA1 Coil Spring - 2.5in x 9 140# 9HT140
QA1
$79.95Whether you're building a dedicated track car or dialing in a coil-over suspension system, spring rate selection is critical to chassis balance and handling predictability. The QA1 9HT140 delivers a 140 lb/in rate in a compact 9-inch package, making it...QA19HT140- SKU:
- QA19HT140
- Availability:
- Ships Same Business Day
- Weight:
- 1.95 LBS
$79.95 -
QA1 Base Valve Firm 9055-325
QA1
$47.95The QA1 Base Valve Firm 9055-325 is engineered for racers and performance builders who demand precise damping control without compromise. This component fine-tunes your suspension's low-speed compression characteristics, allowing you to dial in...QA19055-325- SKU:
- QA19055-325
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
$47.95 -
QA1 Base Valve Medium 9055-324
QA1
$44.95If you're fine-tuning your suspension for precise damping control, the QA1 Base Valve Medium is engineered to dial in your shock performance with predictable, adjustable valving. This steel construction valve delivers the mid-range compliance needed for...QA19055-324- SKU:
- QA19055-324
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
$44.95Qty in Cart: 0Quantity:Price:$44.95Subtotal: -
QA1 Threaded Sleeve Ball Joint K727 2.185in OD 9033-427
QA1
$21.95A worn or loose ball joint compromises your suspension's geometry and steering response, creating safety concerns and accelerating tire wear. The QA1 Threaded Sleeve Ball Joint K727 delivers the precision fit and durability you need for dependable...QA19033-427- SKU:
- QA19033-427
- Availability:
- Ships Same Business Day
- Weight:
- 0.44 LBS
$21.95 -
QA1 Rod Piston .500in OD 6in 9028-134
QA1
$30.95If you're rebuilding or customizing a QA1 shock system, this rod piston is the precision component that directly impacts your suspension's responsiveness and durability. A quality piston ensures consistent damping force throughout the shock's stroke,...QA19028-134- SKU:
- QA19028-134
- Availability:
- Ships Same Business Day
- Weight:
- 0.46 LBS
$30.95Qty in Cart: 0Quantity:Price:$30.95Subtotal:
