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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- Qty in Cart
- Quantity
- Price
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On Sale
Wehrs Machine Steel Right and Left Birdcage/Shock Mount/Swivel Kit
WEHRS MACHINE
Now: $930.00Was: $1,030.00A competitive suspension setup demands components that respond precisely to track conditions while surviving the punishment of high-speed racing. The Wehrs Machine Steel Birdcage/Shock Mount/Swivel Kit delivers the adjustability and structural integrity...236-1000- SKU:
- 236-1000
- Availability:
- Ships Same Business Day
- Weight:
- 15.00 LBS
Now: $930.00Was: $1,030.00 -
High-Performance Birdcage Bearing – 3.008" ID, Blue
J J MOTORSPORTS
$36.25Worn or damaged birdcage bearings compromise suspension precision and can accelerate wear on adjacent components, directly impacting your car's handling and lap times. This 3.008" ID replacement bearing restores the tight tolerances your birdcage...RCBS-6000- SKU:
- RCBS-6000
- Availability:
- Ships Same Business Day
- Weight:
- 1.50 LBS
- Type:
- Birdcage Bearing
- ID:
- 3.008
- Color Inside:
- Blue
$36.25 -
Upper A-Arm Control Arm Bracket (2) Slugs
J J MOTORSPORTS
$17.95If you're building a custom suspension geometry or modifying your control arm mounting points, these slugs are essential for achieving precise fit and alignment. Available in multiple thicknesses, they let you dial in exact suspension geometry without...300-7013- SKU:
- 300-7013
- Availability:
- Usually ships within 24 hours
- Weight:
- 1.00 LBS
$17.95 -
Upper A-Arm Control Arm Slug Kit (9)
J J MOTORSPORTS
$79.95Suspension geometry tuning requires precision, and off-the-shelf control arms often don't accommodate the specific ride height and camber adjustments your setup demands. This Upper A-Arm Control Arm Slug Kit gives you nine precision-machined spacers to...300-7012- SKU:
- 300-7012
- Availability:
- Usually ships within 24 hours
- Weight:
- 1.00 LBS
$79.95 -
Upper A-Arm Control Arm Bracket and (2) Slugs Kit 6 inch Center to Center
J J MOTORSPORTS
$49.95Upgrade your upper A-arm geometry with precision-engineered control arm brackets designed for the demands of competitive racing. This kit delivers the adjustability you need to dial in your suspension geometry and optimize handling balance across both...300-7015- SKU:
- 300-7015
- Availability:
- Usually ships within 24 hours
- Weight:
- 1.00 LBS
$49.95 -
Replacement Ball Joint Cap for Adjustable Upper Control Arm Modified A-Frame
J J MOTORSPORTS
$19.95Replacement Ball Joint Cap for Adjustable Upper Control Arms Steel Grease Fitting Included Common upper a-frame on rage modifieds and various other dirt car chassisRCSU-0033- SKU:
- RCSU-0033
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
$19.95 -
Ball Joint Pin K772 for Upper Control Arm Modified A-Frame IMCA (STD Length)
J J MOTORSPORTS
$24.95Small Ball Joint Pin K772 Standard Length 3-7/16" Overall Length Nut Included K772 Taper Common upper a-frame on rage modifieds and various other dirt car chassisRCSU-0032- SKU:
- RCSU-0032
- Availability:
- Ships Same Business Day
- Weight:
- 0.44 LBS
$24.95 -
Ball Joint Pin K772 for Upper Control Arm Modified A-Frame (+1" Length)
J J MOTORSPORTS
$26.95Small Ball Joint Pin K772 +1" Length 4.5" Overall Length Nut Included K772 Taper Common upper a-frame on rage modifieds and various other dirt car chassisRCSU-0043- SKU:
- RCSU-0043
- Availability:
- Ships Same Business Day
- Weight:
- 0.44 LBS
$26.95 -
Double Adjuster 3/4 RH Male to 1/2 LH Female
J J MOTORSPORTS
$12.953/4-16 RH Male Thread 1/2-20 LH Female Thread SteelRCSU-0028- SKU:
- RCSU-0028
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
$12.95 -
Metric GM Rear Control Arm Bushings Rubber Trailing Arm Bushing
J J MOTORSPORTS
$14.95Direct replacement bushing for 78-88 GM midsize metric cars, but with the added 1/2 Inch bolt hole. These bushings feature a steel body with rubber bushing material, maintaining that stock appearance as required by IMCA rules. Meets or exceeds OE...RCSU-5015- SKU:
- RCSU-5015
- Availability:
- Ships Same Business Day
- Weight:
- 0.66 LBS
$14.95 -
Swivel Weight Jack Bolt Cup Swivler Assembly (fits 5" or 5.5" Springs)
J J MOTORSPORTS
$48.95Swiveler Weight Jack Assembly Front Standard 1" Course jack bolt - 6" inch length Will fit on 5" and 5-1/2" springs 3.25" inch Inner cup diameter 2" inch Inner cup length Allows cup in top of spring to pivot on bolt eliminating bind during travel.RCSU-0200- SKU:
- RCSU-0200
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
$48.95 -
Wehrs Machine 3/4 Suspension Tubes, Heims
WEHRS MACHINE
$54.48 - $58.48Wehrs Machine suspension tubes deliver the precision and durability demanded by serious racers and high-performance builds. These 3/4" tubes with Heim joints provide exceptional strength-to-weight ratio while maintaining the adjustability required for...234-9073- SKU:
- 234-9073
- Availability:
- Ships Same Business Day
- Weight:
- 2.00 LBS
$54.48 - $58.48 -
Wehrs Machine 5/8 Suspension Tubes, Heims
WEHRS MACHINE
$44.98 - $48.98Wehrs Machine suspension tubes deliver the precision and durability required for serious track work and high-performance applications. These 5/8" tubes with heim joints provide superior articulation and reduced bind compared to traditional ball joints,...234-9072- SKU:
- 234-9072
- Availability:
- Ships Same Business Day
- Weight:
- 2.00 LBS
$44.98 - $48.98 -
Wehrs Spring Style Pullbar with Spring, Steel
J J MOTORSPORTS
$5.00A quality pullbar is essential safety equipment for any dedicated racer or track-focused build. The Wehrs Spring Style Pullbar combines proven engineering with robust construction, giving you a reliable extraction point that won't fail when you need it...234-9022- SKU:
- 234-9022
- Availability:
- Ships Same Business Day
- Weight:
- 10.00 LBS
$5.00 -
Lightweight/Weld-In Weight Jack Plate Adjustment Kit
J J MOTORSPORTS
$58.96Weight distribution is critical to chassis balance, and a jack plate adjustment kit gives you the precision control needed to dial in your setup without permanent modifications. Whether you're chasing lap times or fine-tuning suspension geometry, this...236-1003- SKU:
- 236-1003
- Availability:
- Ships same business day
- Weight:
- 8.00 LBS
$58.96 -
1978-88 GM Metric G-Body Rear Control Arm Kit with Polyurethane Bushings
J J MOTORSPORTS
$428.90Worn factory control arms and rubber bushings rob your G-Body of precision handling and introduce unwanted compliance in the chassis. This complete rear control arm kit delivers the geometry and bushing material your suspension needs to perform...RCSU-5014- SKU:
- RCSU-5014
- Availability:
- Ships same business day
- Weight:
- 7.50 LBS
$428.90Qty in Cart: 0Quantity:Price:$428.90Subtotal: -
GM Chevy Street Stock 1973-88 GM Heavy Duty Upper Rear Control Trailing Arm
SPEEDWAY MOTORS
$62.95Stock stamped control arms flex and twist under load, causing wheel hop and unpredictable handling—especially problematic in street stock racing where consistency determines winners. This heavy-duty upper rear control trailing arm replaces that weakness...2D27C508- SKU:
- 2D27C508
- Availability:
- Ships Same Business Day
- Weight:
- 2.00 LBS
$62.95 -
GM 1978-88 G-Body Street Stock Lower Rear Control Trailing Arm
SPEEDWAY MOTORS
$62.95Stock stamped rear control arms flex under load, causing wheel hop and unpredictable handling during hard acceleration and cornering. This heavy-duty lower trailing arm replaces that weakness with rigid strength, delivering the wheel control you need for...45E984EF- SKU:
- 45E984EF
- Availability:
- Ships Same Business Day
- Weight:
- 2.00 LBS
$62.95 -
Clamp-On Shock Mount for 1-3/4'' Tubing - Clevis Off-Road Racing
J J MOTORSPORTS
$29.95Off-road racing demands suspension components that can handle extreme articulation and repeated impacts without failure. This clamp-on shock mount delivers the rigidity and simplicity you need to build or upgrade a custom suspension system, whether...RCTB-2512- SKU:
- RCTB-2512
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
$29.95 -
1/16 Inch Upper Control Arm Shims - IMCA Individual Mount (10-Pack)
J J MOTORSPORTS
$15.50Upper control arm alignment is critical to suspension geometry—even small deviations compound into poor handling, uneven tire wear, and lost lap time. These 1/16-inch shims let you dial in precise camber and caster adjustments without replacing entire...RCTB-2501- SKU:
- RCTB-2501
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
$15.50
