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
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Allstar Performance 14mm Shock Shim U-Shaped 1/16in 25pk ALL64410-25
ALLSTAR PERFORMANCE
$29.9914mm Shock Shim U-Shaped 1/16in 25pkShock ShimU-Shaped1/16 in ThickPlasticYellow14 mm ShocksSet of 25ALL64410-25- SKU:
- ALL64410-25
- Availability:
- Ships Same Business Day
- Weight:
- 0.46 LBS
- MFG Part #:
- ALL64410-25
$29.99 -
Allstar Performance 14mm Shock Shim U-Shaped 1/16in 10pk ALL64410
ALLSTAR PERFORMANCE
$13.2914mm Shock Shim U-Shaped 1/16in 10pkShock ShimU-Shaped1/16 in ThickPlasticYellow14 mm ShocksSet of 10ALL64410- SKU:
- ALL64410
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- MFG Part #:
- ALL64410
$13.29 -
Allstar Performance 14mm Shock Shim Deluxe Kit ALL64404
ALLSTAR PERFORMANCE
$95.9914mm Shock Shim Deluxe KitShock Shim KitDeluxeVarious Styles / ThicknessesPlasticVarious Colors14 mm ShocksKitALL64404- SKU:
- ALL64404
- Availability:
- Ships Same Business Day
- Weight:
- 2.41 LBS
- MFG Part #:
- ALL64404
$95.99 -
Allstar Performance 14mm Shock Shim Starter Kit ALL64400
ALLSTAR PERFORMANCE
$31.9914mm Shock Shim Starter KitShock Shim KitStarterVarious Styles / ThicknessesPlasticVarious Colors14 mm ShocksKitALL64400- SKU:
- ALL64400
- Availability:
- Ships Same Business Day
- Weight:
- 0.68 LBS
- MFG Part #:
- ALL64400
$31.99 -
Allstar Performance Bump Stop Kit for 14mm Shocks ALL64360
ALLSTAR PERFORMANCE
$299.99Bump Stop Kit for 14mm ShocksBump Stop KitPucks / Backing Washers / Shims IncludedCarry CaseKitALL64360- SKU:
- ALL64360
- Availability:
- Ships Same Business Day
- Weight:
- 4.70 LBS
- MFG Part #:
- ALL64360
$299.99 -
Allstar Performance Bump Spring Cup 16mm 1.280 Cup Step OD ALL64358
ALLSTAR PERFORMANCE
$24.99Bump Spring Cup 16mm 1.280 Cup Step ODBump Stop CupSingle Spring2.000 in OD1.280 in ID0.400 in Tall16 mm Thru HoleAluminumBlack Anodized1 in Bump SpringEachALL64358- SKU:
- ALL64358
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- MFG Part #:
- ALL64358
$24.99 -
Allstar Performance Bump Spring Cup 16mm 1.200 Cup Step OD ALL64357
ALLSTAR PERFORMANCE
$24.99Bump Spring Cup 16mm 1.200 Cup Step ODBump Stop CupSingle Spring2.000 in OD1.200 in ID0.400 in Tall16 mm Thru HoleAluminumBlack Anodized1 in Bump SpringEachALL64357- SKU:
- ALL64357
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- MFG Part #:
- ALL64357
$24.99 -
Allstar Performance Bump Spring Cup 16mm 1.160 Cup Step OD ALL64356
ALLSTAR PERFORMANCE
$24.99Bump Spring Cup 16mm 1.160 Cup Step ODBump Stop CupSingle Spring2.000 in OD1.160 in ID0.400 in Tall16 mm Thru HoleAluminumBlack Anodized1 in Bump SpringEachALL64356- SKU:
- ALL64356
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
- MFG Part #:
- ALL64356
$24.99 -
Allstar Performance Bump Spring Cup 1/2in 1.280 Cup Step OD ALL64354
ALLSTAR PERFORMANCE
$24.99Bump Spring Cup 1/2in 1.280 Cup Step ODBump Stop CupSingle Spring2.000 in OD1.280 in ID0.400 in Tall1/2 in Thru HoleAluminumBlack Anodized1 in Bump SpringEachALL64354- SKU:
- ALL64354
- Availability:
- Ships Same Business Day
- Weight:
- 0.19 LBS
- MFG Part #:
- ALL64354
$24.99 -
Allstar Performance Bump Spring Cup 1/2in 1.200 Cup Step OD ALL64353
ALLSTAR PERFORMANCE
$24.99Bump Spring Cup 1/2in 1.200 Cup Step ODBump Stop CupSingle Spring2.000 in OD1.200 in ID0.400 in Tall1/2 in Thru HoleAluminumBlack Anodized1 in Bump SpringEachALL64353- SKU:
- ALL64353
- Availability:
- Ships Same Business Day
- Weight:
- 0.16 LBS
- MFG Part #:
- ALL64353
$24.99 -
Allstar Performance Bump Spring Cup 1/2in 1.160 Cup Step OD ALL64352
ALLSTAR PERFORMANCE
$24.99Bump Spring Cup 1/2in 1.160 Cup Step ODBump Stop CupSingle Spring2.000 in OD1.160 in ID0.400 in Tall1/2 in Thru HoleAluminumBlack Anodized1 in Bump SpringEachALL64352- SKU:
- ALL64352
- Availability:
- Ships Same Business Day
- Weight:
- 0.16 LBS
- MFG Part #:
- ALL64352
$24.99 -
Allstar Performance Bump Spring Cup 14mm 1.280 Cup Step OD ALL64350
ALLSTAR PERFORMANCE
$24.99Bump Spring Cup 14mm 1.280 Cup Step ODBump Stop CupSingle Spring2.000 in OD1.280 in ID0.400 in Tall14 mm Thru HoleAluminumBlack Anodized1 in Bump SpringEachALL64350- SKU:
- ALL64350
- Availability:
- Ships Same Business Day
- Weight:
- 0.12 LBS
- MFG Part #:
- ALL64350
$24.99 -
Allstar Performance Bump Spring Cup 14mm 1.200 Cup Step OD ALL64349
ALLSTAR PERFORMANCE
$26.99Bump Spring Cup 14mm 1.200 Cup Step ODBump Stop CupSingle Spring2.000 in OD1.200 in ID0.400 in Tall14 mm Thru HoleAluminumBlack Anodized1 in Bump SpringEachALL64349- SKU:
- ALL64349
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- MFG Part #:
- ALL64349
$26.99 -
Allstar Performance Bump Spring Cup 14mm 1.160 Cup Step OD ALL64348
ALLSTAR PERFORMANCE
$24.99Bump Spring Cup 14mm 1.160 Cup Step ODBump Stop CupSingle Spring2.000 in OD1.160 in ID0.400 in Tall14 mm Thru HoleAluminumBlack Anodized1 in Bump SpringEachALL64348- SKU:
- ALL64348
- Availability:
- Ships Same Business Day
- Weight:
- 0.14 LBS
- MFG Part #:
- ALL64348
$24.99 -
Allstar Performance Bump Stop Puck 75dr Yellow 1in ALL64346
ALLSTAR PERFORMANCE
$18.89Bump Stop Puck 75dr Yellow 1inBump Stop Puck2 in OD5/8 in ID1 in Tall75 DurometerUrethaneYellowEachALL64346- SKU:
- ALL64346
- Availability:
- Ships Same Business Day
- Weight:
- 0.19 LBS
- MFG Part #:
- ALL64346
$18.89 -
Allstar Performance Bump Stop Puck 75dr Yellow 3/4in ALL64345
ALLSTAR PERFORMANCE
$16.89Bump Stop Puck 75dr Yellow 3/4inBump Stop Puck2 in OD5/8 in ID3/4 in Tall75 DurometerUrethaneYellowEachALL64345- SKU:
- ALL64345
- Availability:
- Ships Same Business Day
- Weight:
- 0.01 LBS
- MFG Part #:
- ALL64345
$16.89 -
Allstar Performance Bump Stop Puck 75dr Yellow 1/2in ALL64344
ALLSTAR PERFORMANCE
$13.49Bump Stop Puck 75dr Yellow 1/2inBump Stop Puck2 in OD5/8 in ID1/2 in Tall75 DurometerUrethaneYellowEachALL64344- SKU:
- ALL64344
- Availability:
- Ships Same Business Day
- Weight:
- 0.95 LBS
- MFG Part #:
- ALL64344
$13.49 -
Allstar Performance Bump Stop Puck 65dr Black 1in ALL64341
ALLSTAR PERFORMANCE
$18.89Bump Stop Puck 65dr Black 1inBump Stop Puck2 in OD5/8 in ID1 in Tall65 DurometerUrethaneBlackEachALL64341- SKU:
- ALL64341
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- MFG Part #:
- ALL64341
$18.89 -
Allstar Performance Bump Stop Puck 65dr Black 3/4in ALL64340
ALLSTAR PERFORMANCE
$16.89Bump Stop Puck 65dr Black 3/4inBump Stop Puck2 in OD5/8 in ID3/4 in Tall65 DurometerUrethaneBlackEachALL64340- SKU:
- ALL64340
- Availability:
- Ships Same Business Day
- Weight:
- 0.14 LBS
- MFG Part #:
- ALL64340
$16.89 -
Allstar Performance Bump Stop Puck 65dr Black 1/2in ALL64339
ALLSTAR PERFORMANCE
$13.49Bump Stop Puck 65dr Black 1/2inBump Stop Puck2 in OD5/8 in ID1/2 in Tall65 DurometerUrethaneBlackEachALL64339- SKU:
- ALL64339
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- MFG Part #:
- ALL64339
$13.49