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
U-B Tube 1.25 x 30 x 3/4 thread 42-3001-A
U-B MACHINE
MSRP: $64.99Now: $63.04Was: $64.99A properly engineered suspension tube is fundamental to building a reliable suspension system that maintains geometry and handling characteristics under load. This U-B tube delivers the strength and precision fitment required for custom fabrication work,...UBM42-3001-A-PC- SKU:
- UBM42-3001-A-PC
- Availability:
- Ships Same Business Day
- Weight:
- 1.92 LBS
- MFG Part #:
- 42-3001-A
MSRP: $64.99Now: $63.04Was: $64.99 -
On Sale
U-B Tube 1 x 29 x 3/4 thread 42-2902-A
U-B MACHINE
MSRP: $44.99Now: $43.64Was: $44.99A properly engineered suspension tube is critical for maintaining structural integrity and precise geometry in your suspension setup. This U-B tube delivers the durability and dimensional consistency you need for reliable performance, whether you're...UBM42-2902-A-PC- SKU:
- UBM42-2902-A-PC
- Availability:
- Ships Same Business Day
- Weight:
- 2.25 LBS
- MFG Part #:
- 42-2902-A
MSRP: $44.99Now: $43.64Was: $44.99 -
On Sale
U-B Tube 1 x 28 x 3/4 thread 42-2802-A
U-B MACHINE
MSRP: $49.99Now: $48.49Was: $49.99A properly engineered suspension tube is foundational to maintaining precise geometry and responsive handling in your suspension setup. This U-B tube delivers the structural integrity and thread accuracy your suspension components demand, whether you're...UBM42-2802-A-PC- SKU:
- UBM42-2802-A-PC
- Availability:
- Ships Same Business Day
- Weight:
- 2.20 LBS
- MFG Part #:
- 42-2802-A
MSRP: $49.99Now: $48.49Was: $49.99Qty in Cart: 0Quantity:Price:MSRP: $49.99Now: $48.49Was: $49.99Subtotal: -
On Sale
U-B Tube 1.25 x 28 x 3/4 thread 42-2801-A
U-B MACHINE
MSRP: $55.99Now: $54.31Was: $55.99A properly dimensioned suspension tube is critical to maintaining alignment, geometry, and handling characteristics in any high-performance suspension setup. This U-B tube delivers the structural integrity and precise threading you need for reliable...UBM42-2801-A-PC- SKU:
- UBM42-2801-A-PC
- Availability:
- Ships Same Business Day
- Weight:
- 2.40 LBS
- MFG Part #:
- 42-2801-A
MSRP: $55.99Now: $54.31Was: $55.99 -
On Sale
U-B Tube 1 x 26 x 3/4 thread 42-2602-A
U-B MACHINE
MSRP: $46.99Now: $45.58Was: $46.99Suspension geometry demands precision, and this U-tube delivers the structural integrity your suspension setup requires. Whether you're tuning ride height, adjusting geometry angles, or replacing a worn component, a quality suspension tube is...UBM42-2602-A-PC- SKU:
- UBM42-2602-A-PC
- Availability:
- Ships Same Business Day
- Weight:
- 2.00 LBS
- MFG Part #:
- 42-2602-A
MSRP: $46.99Now: $45.58Was: $46.99 -
On Sale
U-B Tube 1.25 x 26 x 3/4 thread 42-2601-A
U-B MACHINE
MSRP: $60.99Now: $59.16Was: $60.99Whether you're building a custom suspension setup or replacing a worn control arm tube, this U-B tube delivers the structural integrity and precision fit your chassis demands. The 3/4-16 female threads accept standard rod ends and clevises, giving you...UBM42-2601-A-PC- SKU:
- UBM42-2601-A-PC
- Availability:
- Ships Same Business Day
- Weight:
- 2.56 LBS
- MFG Part #:
- 42-2601-A
MSRP: $60.99Now: $59.16Was: $60.99 -
On Sale
U-B Tube 1 x 25 x 3/4 thread 42-2502-A
U-B MACHINE
MSRP: $45.99Now: $44.61Was: $45.99Precision suspension geometry depends on components that can handle repeated stress cycles without deflection or failure. This U-B tube delivers the rigid, predictable performance you need for consistent handling across track sessions, whether you're...UBM42-2502-A-PC- SKU:
- UBM42-2502-A-PC
- Availability:
- Ships Same Business Day
- Weight:
- 1.95 LBS
- MFG Part #:
- 42-2502-A
MSRP: $45.99Now: $44.61Was: $45.99Qty in Cart: 0Quantity:Price:MSRP: $45.99Now: $44.61Was: $45.99Subtotal: -
On Sale
U-B Tube 1 x 24 x 5/8 thread 42-2402-C
U-B MACHINE
MSRP: $40.99Now: $39.76Was: $40.99A properly engineered suspension tube is critical to maintaining structural integrity and precise geometry in your suspension assembly. This U-B tube delivers the durability and thread accuracy your build demands, whether you're fine-tuning a race...UBM42-2402-C-PC- SKU:
- UBM42-2402-C-PC
- Availability:
- Ships Same Business Day
- Weight:
- 1.85 LBS
- MFG Part #:
- 42-2402-C
MSRP: $40.99Now: $39.76Was: $40.99 -
U-B Tube 1 x 24 x 3/4 thread 42-2402-A
U-B MACHINE
$40.99A properly engineered suspension tube is fundamental to maintaining precise geometry and handling characteristics in any high-performance suspension system. This U-B tube delivers the durability and dimensional accuracy required for consistent...UBM42-2402-A-PC- SKU:
- UBM42-2402-A-PC
- Availability:
- Ships Same Business Day
- Weight:
- 1.85 LBS
- MFG Part #:
- 42-2402-A
$40.99Qty in Cart: 0Quantity:Price:$40.99Subtotal: -
On Sale
U-B Tube 1.25 x 24 x 3/4 thread 42-2401-A
U-B MACHINE
MSRP: $56.99Now: $55.28Was: $56.99A properly engineered suspension tube is critical for maintaining structural integrity and precise geometry in custom suspension builds. This 1.25-inch U-B tube delivers the rigidity needed for consistent performance while its threaded ends simplify...UBM42-2401-A-PC- SKU:
- UBM42-2401-A-PC
- Availability:
- Ships Same Business Day
- Weight:
- 2.37 LBS
- MFG Part #:
- 42-2401-A
MSRP: $56.99Now: $55.28Was: $56.99 -
On Sale
U-B Tube 1 x 23 x 3/4 thread 42-2302-A
U-B MACHINE
MSRP: $42.99Now: $41.70Was: $42.99A properly engineered suspension tube is fundamental to building a reliable chassis that handles predictably under load. This 1-inch U-B tube delivers the structural integrity you need for custom suspension geometry, whether you're fabricating a control...UBM42-2302-A-PC- SKU:
- UBM42-2302-A-PC
- Availability:
- Ships Same Business Day
- Weight:
- 1.79 LBS
- MFG Part #:
- 42-2302-A
MSRP: $42.99Now: $41.70Was: $42.99 -
On Sale
U-B Tube .75 x 22 x 1/2 thread 42-2205-E
U-B MACHINE
MSRP: $34.99Now: $33.94Was: $34.99A properly engineered suspension tube is critical for maintaining chassis integrity and handling precision under load. This U-B tube delivers the structural support your suspension geometry demands, whether you're tuning a street machine or building a...UBM42-2205-E-PC- SKU:
- UBM42-2205-E-PC
- Availability:
- Ships Same Business Day
- Weight:
- 0.85 LBS
- MFG Part #:
- 42-2205-E
MSRP: $34.99Now: $33.94Was: $34.99 -
On Sale
U-B Tube 1 x 22 x 3/4 thread 42-2202-A
U-B MACHINE
MSRP: $38.99Now: $37.82Was: $38.99Precision suspension geometry demands components built to exact tolerances—this U-B tube delivers the structural integrity and adjustability your suspension system requires. Whether you're fine-tuning ride height, adjusting control arm angles, or...UBM42-2202-A-PC- SKU:
- UBM42-2202-A-PC
- Availability:
- Ships Same Business Day
- Weight:
- 1.68 LBS
- MFG Part #:
- 42-2202-A
MSRP: $38.99Now: $37.82Was: $38.99 -
On Sale
U-B Tube .75 x 21 x 1/2 thread 42-2105-E
U-B MACHINE
MSRP: $33.99Now: $32.97Was: $33.99A properly engineered suspension tube is critical for maintaining alignment, geometry, and handling precision in your suspension setup. This U-B tube delivers the durability needed for both street and track applications, with quality construction that...UBM42-2105-E-PC- SKU:
- UBM42-2105-E-PC
- Availability:
- Ships Same Business Day
- Weight:
- 0.85 LBS
- MFG Part #:
- 42-2105-E
MSRP: $33.99Now: $32.97Was: $33.99 -
On Sale
U-B Tube 1.25 x 21 x 3/4 thread 42-2101-A
U-B MACHINE
MSRP: $50.99Now: $49.46Was: $50.99A properly engineered suspension tube is critical for maintaining structural integrity and precise alignment in high-performance applications. This U-B tube delivers the strength and thread compatibility needed for solid suspension geometry without...UBM42-2101-A-PC- SKU:
- UBM42-2101-A-PC
- Availability:
- Ships Same Business Day
- Weight:
- 2.08 LBS
- MFG Part #:
- 42-2101-A
MSRP: $50.99Now: $49.46Was: $50.99Qty in Cart: 0Quantity:Price:MSRP: $50.99Now: $49.46Was: $50.99Subtotal: -
On Sale
U-B Tube .750 x 20 x 1/2 thread 42-2005-E
U-B MACHINE
MSRP: $33.99Now: $32.97Was: $33.99A quality suspension tube is foundational to any serious build—this U-B tube delivers the structural integrity and precise fitment your custom suspension geometry demands. Whether you're fabricating a control arm, constructing a custom suspension link,...UBM42-2005-E-PC- SKU:
- UBM42-2005-E-PC
- Availability:
- Ships Same Business Day
- Weight:
- 0.80 LBS
- MFG Part #:
- 42-2005-E
MSRP: $33.99Now: $32.97Was: $33.99 -
On Sale
U-B Tube 1.25 x 20 x 3/4 thread 42-2001-A
U-B MACHINE
MSRP: $43.99Now: $42.67Was: $43.99A properly engineered suspension tube is critical for chassis rigidity and accurate suspension geometry, directly impacting handling precision and component longevity. This U-B tube delivers the structural integrity needed for high-performance...UBM42-2001-A-PC- SKU:
- UBM42-2001-A-PC
- Availability:
- Ships Same Business Day
- Weight:
- 1.97 LBS
- MFG Part #:
- 42-2001-A
MSRP: $43.99Now: $42.67Was: $43.99 -
On Sale
U-B Tube 1.25 x 19 x 3/4 thread 42-1901-A
U-B MACHINE
MSRP: $42.99Now: $41.70Was: $42.99A properly engineered suspension tube is critical for maintaining structural integrity and precise geometry in performance suspension systems. This U-B tube delivers the durability and consistent fitment required for professional-grade builds, whether...UBM42-1901-A-PC- SKU:
- UBM42-1901-A-PC
- Availability:
- Ships Same Business Day
- Weight:
- 1.80 LBS
- MFG Part #:
- 42-1901-A
MSRP: $42.99Now: $41.70Was: $42.99 -
On Sale
U-B Tube .75 x 18 x 1/2 thread 42-1805-E
U-B MACHINE
MSRP: $31.99Now: $31.03Was: $31.99A quality suspension tube is fundamental to building a reliable chassis that handles predictably under load. This U-B tube delivers the structural integrity and precision threading you need for custom suspension fabrication, welding, or repair work...UBM42-1805-E-PC- SKU:
- UBM42-1805-E-PC
- Availability:
- Ships Same Business Day
- Weight:
- 0.70 LBS
- MFG Part #:
- 42-1805-E
MSRP: $31.99Now: $31.03Was: $31.99 -
On Sale
U-B Tube .875 x 18 x 5/8 thread 42-1803-C
U-B MACHINE
MSRP: $32.99Now: $32.00Was: $32.99A precision-engineered suspension tube built for vehicles that demand reliability under extreme conditions. Whether you're fabricating a custom suspension geometry or replacing a worn component, this U-B tube delivers the structural integrity and threads...UBM42-1803-C-PC- SKU:
- UBM42-1803-C-PC
- Availability:
- Ships Same Business Day
- Weight:
- 1.23 LBS
- MFG Part #:
- 42-1803-C
MSRP: $32.99Now: $32.00Was: $32.99
