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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On Sale
U-B Toe Adjuster 5/8 RH Male 5/8 LH Female 47-1008
U-B MACHINE
MSRP: $31.99Now: $30.39Was: $31.99Toe Adjuster 5/8 RH Male 5/8 LH FemaleLinkage Adjuster5/8 in Right Hand Male Thread5/8 in Right Hand Female ThreadSteelEachUBM47-1008- SKU:
- UBM47-1008
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
MSRP: $31.99Now: $30.39Was: $31.99 -
On Sale
U-B Liner / Bushing for UBM46-0050 (each) 46-0050-L
U-B MACHINE
MSRP: $34.99Now: $33.24Was: $34.99Liner / Bushing for UBM46-0050 (each)Trailing Arm BracketDriverGreaseableFloatingSteelNaturalEachUBM46-0050-L- SKU:
- UBM46-0050-L
- Availability:
- Ships Same Business Day
- Weight:
- 0.01 LBS
MSRP: $34.99Now: $33.24Was: $34.99Qty in Cart: 0Quantity:Price:MSRP: $34.99Now: $33.24Was: $34.99Subtotal: -
On Sale
U-B Tube 1 x 10 x 5/8 RH 11/16 LH 42-1002-CB
U-B MACHINE
MSRP: $35.99Now: $34.19Was: $35.99Tube 1 x 10 x 5/8 RH 11/16 LHSuspension Tube1 in OD10 in Long5/8-18 in Right Hand Female Thread11/16-18 in Left Hand Female ThreadSteelBlack Powder CoatEachUBM42-1002-CB-PC- SKU:
- UBM42-1002-CB-PC
- Availability:
- Ships Same Business Day
- Weight:
- 0.77 LBS
MSRP: $35.99Now: $34.19Was: $35.99Qty in Cart: 0Quantity:Price:MSRP: $35.99Now: $34.19Was: $35.99Subtotal: -
On Sale
U-B Shock Mount Weld-On 7in 35-3343-7
U-B MACHINE
MSRP: $18.99Now: $18.04Was: $18.99Shock Mount Weld-On 7inShock MountWeld-OnLower7 in LongSteelNaturalUniversalEachUBM35-3343-7- SKU:
- UBM35-3343-7
- Availability:
- Ships Same Business Day
- Weight:
- 0.81 LBS
MSRP: $18.99Now: $18.04Was: $18.99 -
On Sale
U-B Shock Mount Weld On 35-3343-5
U-B MACHINE
MSRP: $16.99Now: $16.14Was: $16.99Shock Mount Weld On Shock MountWeld-OnLower5 in LongSteelNaturalUniversalEachUBM35-3343-5- SKU:
- UBM35-3343-5
- Availability:
- Ships Same Business Day
- Weight:
- 0.63 LBS
MSRP: $16.99Now: $16.14Was: $16.99 -
On Sale
U-B Jack Bolt Boss Threaded 1in Coarse x 2in Long 35-1100-200
U-B MACHINE
MSRP: $18.99Now: $18.04Was: $18.99Jack Bolt Boss Threaded 1in Coarse x 2in LongJack Bolt1-8 in Thread2 in LongSteelNaturalEachUBM35-1100-200- SKU:
- UBM35-1100-200
- Availability:
- Ships Same Business Day
- Weight:
- 2.00 LBS
MSRP: $18.99Now: $18.04Was: $18.99 -
On Sale
U-B Jack Bolt Boss 35-1100
U-B MACHINE
MSRP: $14.99Now: $14.24Was: $14.99Jack Bolt Boss Threaded Boss1-8 in Threads1.25 in LongGrease FittingSteelNaturalUBM Jack BoltEachUBM35-1100- SKU:
- UBM35-1100
- Availability:
- Ships Same Business Day
- Weight:
- 0.38 LBS
MSRP: $14.99Now: $14.24Was: $14.99Qty in Cart: 0Quantity:Price:MSRP: $14.99Now: $14.24Was: $14.99Subtotal: -
On Sale
U-B Control Arm 11.25in Screw-BJ Quad Bearing 19-1113-QB
U-B MACHINE
MSRP: $164.99Now: $156.74Was: $164.99Control Arm 11.25in Screw-BJ Quad BearingControl Arm19 Series Quad BearingTubularUpper11.250 in LongScrew-In Ball JointSteelBlack Powder CoatUniversalEachUBM19-1113-QB- SKU:
- UBM19-1113-QB
- Availability:
- Ships Same Business Day
- Weight:
- 4.54 LBS
MSRP: $164.99Now: $156.74Was: $164.99 -
On Sale
U-B Control Arm 10.5in Screw -In BJ Quad Bearing 19-1023-QB
U-B MACHINE
MSRP: $163.99Now: $155.79Was: $163.99Control Arm 10.5in Screw -In BJ Quad BearingControl Arm19 Series Quad BearingTubularUpper10.500 in LongScrew-In Ball JointSteelBlack Powder CoatUniversalEachUBM19-1023-QB- SKU:
- UBM19-1023-QB
- Availability:
- Ships Same Business Day
- Weight:
- 4.28 LBS
MSRP: $163.99Now: $155.79Was: $163.99 -
On Sale
Spring QM 3.50in x 1.63in ID 110lbs 753-110
TANNER
MSRP: $23.99Now: $22.00Was: $23.99Spring QM 3.50in x 1.63in ID 110lbsCoil SpringCoil-Over1.630 in ID3.500 in Length110 lb/in Spring RateRed Powder CoatEachTAN753-110- SKU:
- TAN753-110
- Availability:
- Ships Same Business Day
- Weight:
- 0.21 LBS
MSRP: $23.99Now: $22.00Was: $23.99 -
Spring QM 5in x 1.63in ID 125lbs 752-125
TANNER
$23.99Spring QM 5in x 1.63in ID 125lbsCoil SpringCoil-Over1.630 in ID5.000 in Length125 lb/in Spring RateOrange Powder CoatEachTAN752-125- SKU:
- TAN752-125
- Availability:
- Ships Same Business Day
- Weight:
- 0.31 LBS
$23.99 -
Spring QM 5in x 1.63in ID 120lbs 752-120
TANNER
$23.99Spring QM 5in x 1.63in ID 120lbsCoil SpringCoil-Over1.630 in ID5.000 in Length120 lb/in Spring RateOrange Powder CoatEachTAN752-120- SKU:
- TAN752-120
- Availability:
- Ships Same Business Day
- Weight:
- 0.34 LBS
$23.99 -
Spring QM 5in x 1.63in ID 110lbs 752-110
TANNER
$23.99Spring QM 5in x 1.63in ID 110lbsCoil SpringCoil-Over1.630 in ID5.000 in Length110 lb/in Spring RateOrange Powder CoatEachTAN752-110- SKU:
- TAN752-110
- Availability:
- Ships Same Business Day
- Weight:
- 0.36 LBS
$23.99 -
Slider Short Stack Guide Model SP250-S
SWIFT SPRINGS
$68.00Slider Short Stack Guide ModelSpring GuideTake Up SpringShort2.500 in ID SpringsAluminumNaturalClear AnodizedEachSWISP250-S- SKU:
- SWISP250-S
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
$68.00 -
Slider Long Stack Guide Model SP250-L
SWIFT SPRINGS
$68.00Slider Long Stack Guide ModelSpring GuideTake Up SpringLong2.500 in ID SpringsAluminumNaturalClear AnodizedEachSWISP250-L- SKU:
- SWISP250-L
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
$68.00 -
Conventional Springs 9.5 x 5.5in x 650lbs 950-550-650
SWIFT SPRINGS
$128.35Conventional Springs 9.5 x 5.5in x 650lbsCoil SpringConventional5.5 in OD9.500 in Length650 lb/in Spring RateFrontBlack Powder CoatEachSWI950-550-650- SKU:
- SWI950-550-650
- Availability:
- Ships Same Business Day
- Weight:
- 7.60 LBS
- Spring Rate:
- 650 lb.
- Spring Height:
- 9.5"
- Spring ID:
- 5.5"
$128.35 -
Conventional Springs 9.5 x 5.5in x 600lbs 950-550-600
SWIFT SPRINGS
$128.35Conventional Springs 9.5 x 5.5in x 600lbsCoil SpringConventional5.5 in OD9.500 in Length600 lb/in Spring RateFrontBlack Powder CoatEachSWI950-550-600- SKU:
- SWI950-550-600
- Availability:
- Ships Same Business Day
- Weight:
- 8.20 LBS
- Spring Rate:
- 600 lb.
- Spring Height:
- 9.5"
- Spring ID:
- 5.5"
$128.35 -
Conventional Spring 9.5in x 5in 700LB 950-500-700
SWIFT SPRINGS
$128.35Conventional Spring 9.5in x 5in 700LBCoil SpringConventional5.0 in OD9.500 in Length700 lb/in Spring RateFrontBlack Powder CoatEachSWI950-500-700- SKU:
- SWI950-500-700
- Availability:
- Ships Same Business Day
- Weight:
- 8.00 LBS
- Spring Rate:
- 700 lb.
- Spring Height:
- 9.5"
- Spring ID:
- 5"
$128.35 -
Conventional Spring 9.5in x 5in 475LB 950-500-475
SWIFT SPRINGS
$128.35Conventional Spring 9.5in x 5in 475LBCoil SpringConventional5.0 in OD9.500 in Length475 lb/in Spring RateFrontBlack Powder CoatEachSWI950-500-475- SKU:
- SWI950-500-475
- Availability:
- Ships Same Business Day
- Weight:
- 6.80 LBS
- Spring Rate:
- 475 lb.
- Spring Height:
- 9.5"
- Spring ID:
- 5"
$128.35 -
Conventional Spring 9.5in x 5in 425LB 950-500-425
SWIFT SPRINGS
$128.35Conventional Spring 9.5in x 5in 425LBCoil SpringConventional5.0 in OD9.500 in Length425 lb/in Spring RateFrontBlack Powder CoatEachSWI950-500-425- SKU:
- SWI950-500-425
- Availability:
- Ships Same Business Day
- Weight:
- 5.70 LBS
- Spring Rate:
- 425 lb.
- Spring Height:
- 9.5"
- Spring ID:
- 5"
$128.35