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!
- Product
- Qty in Cart
- Quantity
- Price
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On Sale
U-B Tube .875 x 7 x 5/8 thread 42-0703-C
U-B MACHINE
MSRP: $19.99Now: $18.99Was: $19.99Suspension Tube7/8 in OD7 in Long5/8-18 in Female ThreadsSteelBlack Powder CoatEachUBM42-0703-C-PC- SKU:
- UBM42-0703-C-PC
- Availability:
- Ships Same Business Day
- Weight:
- 0.46 LBS
- MFG Part #:
- 42-0703-C
MSRP: $19.99Now: $18.99Was: $19.99Qty in Cart: 0Quantity:Price:MSRP: $19.99Now: $18.99Was: $19.99Subtotal: -
On Sale
U-B Tube .875 x 6.5 x 5/8 thread 42-0623-C
U-B MACHINE
MSRP: $19.99Now: $18.99Was: $19.99Suspension Tube7/8 in OD6-1/2 in Long5/8-18 in Female ThreadsSteelBlack Powder CoatEachUBM42-0623-C-PC- SKU:
- UBM42-0623-C-PC
- Availability:
- Ships Same Business Day
- Weight:
- 0.44 LBS
- MFG Part #:
- 42-0623-C
MSRP: $19.99Now: $18.99Was: $19.99Qty in Cart: 0Quantity:Price:MSRP: $19.99Now: $18.99Was: $19.99Subtotal: -
On Sale
U-B Tube 1 x 5 x 3/4 thread 42-0502-A
U-B MACHINE
MSRP: $18.99Now: $18.04Was: $18.99Suspension Tube1 in OD5 in Long3/4-16 in Female ThreadsSteelBlack Powder CoatEachUBM42-0502-A-PC- SKU:
- UBM42-0502-A-PC
- Availability:
- Ships Same Business Day
- Weight:
- 0.38 LBS
- MFG Part #:
- 42-0502-A
MSRP: $18.99Now: $18.04Was: $18.99Qty in Cart: 0Quantity:Price:MSRP: $18.99Now: $18.04Was: $18.99Subtotal: -
On Sale
U-B Shock & Rigidity Bar Mount 35-3160
U-B MACHINE
MSRP: $6.99Now: $6.64Was: $6.99Shock MountWeld-OnSteelNaturalRigidity BarEachUBM35-3160- SKU:
- UBM35-3160
- Availability:
- Ships Same Business Day
- Weight:
- 0.24 LBS
- MFG Part #:
- 35-3160
MSRP: $6.99Now: $6.64Was: $6.99 -
On Sale
U-B Coil Over Mount Long LH 35-3150
U-B MACHINE
MSRP: $20.99Now: $19.94Was: $20.99Shock MountDriver SideWeld-OnLongStraightSteelNaturalUniversalEachUBM35-3150- SKU:
- UBM35-3150
- Availability:
- Ships Same Business Day
- Weight:
- 0.74 LBS
- MFG Part #:
- 35-3150
MSRP: $20.99Now: $19.94Was: $20.99Qty in Cart: 0Quantity:Price:MSRP: $20.99Now: $19.94Was: $20.99Subtotal: -
On Sale
U-B Coil over mount RH long 35-3140
U-B MACHINE
MSRP: $20.99Now: $19.94Was: $20.99Shock MountPassenger SideWeld-OnLongStraightSteelNaturalUniversalEachUBM35-3140- SKU:
- UBM35-3140
- Availability:
- Ships Same Business Day
- Weight:
- 0.65 LBS
- MFG Part #:
- 35-3140
MSRP: $20.99Now: $19.94Was: $20.99Qty in Cart: 0Quantity:Price:MSRP: $20.99Now: $19.94Was: $20.99Subtotal: -
On Sale
U-B Mono Ball Lower Control 32-0350
U-B MACHINE
MSRP: $112.99Now: $107.34Was: $112.99Control Arm BushingSpherical BearingLowerSteelGM A-Body / G-BodyEachUBM32-0350- SKU:
- UBM32-0350
- Availability:
- Ships Same Business Day
- Weight:
- 1.39 LBS
- MFG Part #:
- 32-0350
MSRP: $112.99Now: $107.34Was: $112.99 -
On Sale
U-B Upper A-Arm 9-1/2in Metric 1-1/2in Offset 14-0929-6L
U-B MACHINE
MSRP: $121.99Now: $115.89Was: $121.99Control ArmTubularUpper9.500 in Long1-1/2 in OffsetBolt-In Ball JointSteelBlack Powder CoatUniversalEachUBM14-0929-6L- SKU:
- UBM14-0929-6L
- Availability:
- Ships Same Business Day
- Weight:
- 3.32 LBS
- MFG Part #:
- 14-0929-6L
MSRP: $121.99Now: $115.89Was: $121.99 -
Bump Stop Spring 800lb SBS0800
SWIFT SPRINGS
$92.65Bump Stop Spring2.125 in Free Length2.000 in OD800 lb/in Spring RateSteelNaturalEachSWISBS0800- SKU:
- SWISBS0800
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- MFG Part #:
- SBS0800
- Spring Rate:
- 800 lb.
$92.65 -
Conventional Spring 9.5in x 5in x 575lb 950-500-575
SWIFT SPRINGS
$128.35Coil SpringConventional5.0 in OD9.500 in Length575 lb/in Spring RateFrontBlack Powder CoatEachSWI950-500-575- SKU:
- SWI950-500-575
- Availability:
- Ships Same Business Day
- Weight:
- 6.85 LBS
- MFG Part #:
- 950-500-575
- Spring Rate:
- 575 lb.
- Spring Height:
- 9.5"
- Spring ID:
- 5"
$128.35 -
Barrel Spring 16in x 2.5in 175# 160-250-175 BP
SWIFT SPRINGS
$136.85Coil SpringBarrelCoil-Over2.500 in ID16.000 in Length175 lb/in Spring RateCopper Powder CoatEachSWI160-250-175BP- SKU:
- SWI160-250-175BP
- Availability:
- Ships Same Business Day
- Weight:
- 7.25 LBS
- MFG Part #:
- 160-250-175 BP
- Spring Rate:
- 175 lb.
- Spring Height:
- 16"
- Spring ID:
- 2.5"
$136.85 -
Conventional Spring 13in x 5in x 150# 130-500-150 BP
SWIFT SPRINGS
$136.85Coil SpringConventional5.0 in OD13.000 in Length150 lb/in Spring RateRearCopper Powder CoatEachSWI130-500-150BP- SKU:
- SWI130-500-150BP
- Availability:
- Ships Same Business Day
- Weight:
- 5.00 LBS
- MFG Part #:
- 130-500-150 BP
- Spring Rate:
- 150 lb.
- Spring Height:
- 13"
- Spring ID:
- 5"
$136.85 -
Coilover Spring 8in x 2.5in x 125lb 080-250-125
SWIFT SPRINGS
$102.85Coil SpringBarrelCoil-Over2.500 in ID8.000 in Length125 lb/in Spring RateBlack Powder CoatEachSWI080-250-125- SKU:
- SWI080-250-125
- Availability:
- Ships Same Business Day
- Weight:
- 3.00 LBS
- MFG Part #:
- 080-250-125
- Spring Rate:
- 125 lb.
- Spring Height:
- 8"
- Spring ID:
- 2.5"
$102.85Qty in Cart: 0Quantity:Price:$102.85Subtotal: -
Pull Bar Spring Progressive 600-2000 067-500-600-2000
SWIFT SPRINGS
$128.35Coil SpringConventional5.0 in OD6.750 in Length600-2000 lb/in Spring RateProgressiveBlack Powder CoatEachSWI067-500-600-2000- SKU:
- SWI067-500-600-2000
- Availability:
- Ships Same Business Day
- Weight:
- 7.50 LBS
- MFG Part #:
- 067-500-600-2000
- Spring Rate:
- 600-2000 lb.
$128.35Qty in Cart: 0Quantity:Price:$128.35Subtotal: -
On Sale
5inodx10.5in x 175# Rr Spring M10.5-175
SUSPENSION SPRINGS
MSRP: $68.99Now: $62.00Was: $68.99Coil SpringConventional5.0 in OD10.500 in Length175 lb/in Spring RateRearBlue EpoxyEachSSSM175- SKU:
- SSSM175
- Availability:
- Ships Same Business Day
- Weight:
- 6.14 LBS
- MFG Part #:
- M10.5-175
MSRP: $68.99Now: $62.00Was: $68.99Qty in Cart: 0Quantity:Price:MSRP: $68.99Now: $62.00Was: $68.99Subtotal: -
Bump Stop Blue Molded 1in RE-BR-RSW-390
RE SUSPENSION
$24.99Bump Stop Puck2 in OD5/8 in ID1 in Tall90 DurometerPolyurethaneBlueEachRESRE-BR-RSW-390- SKU:
- RESRE-BR-RSW-390
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- MFG Part #:
- RE-BR-RSW-390
$24.99Qty in Cart: 0Quantity:Price:$24.99Subtotal: -
Bump Stop Yellow Molded 1in RE-BR-RSW-380
RE SUSPENSION
$24.99Bump Stop Puck2 in OD5/8 in ID1 in Tall80 DurometerPolyurethaneYellowEachRESRE-BR-RSW-380- SKU:
- RESRE-BR-RSW-380
- Availability:
- Ships Same Business Day
- Weight:
- 0.09 LBS
- MFG Part #:
- RE-BR-RSW-380
$24.99Qty in Cart: 0Quantity:Price:$24.99Subtotal: -
Bump Stop Green Molded 1in RE-BR-RSW-370
RE SUSPENSION
$24.99Bump Stop Puck2 in OD5/8 in ID1 in Tall70 DurometerPolyurethaneGreenEachRESRE-BR-RSW-370- SKU:
- RESRE-BR-RSW-370
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- MFG Part #:
- RE-BR-RSW-370
$24.99Qty in Cart: 0Quantity:Price:$24.99Subtotal: -
Alum Packer 16mm 1/16in Thick RE-BR-PKA16-063
RE SUSPENSION
$19.95Bump Stop Shim1/16 in Thick16 mm ShaftAluminumRedEachRESRE-BR-PKA16-063- SKU:
- RESRE-BR-PKA16-063
- Availability:
- Ships Same Business Day
- Weight:
- 0.03 LBS
- MFG Part #:
- RE-BR-PKA16-063
$19.95Qty in Cart: 0Quantity:Price:$19.95Subtotal: -
Apollo Bump Rubber Blue 90 Durometer RE-BR-5153-190
RE SUSPENSION
$15.99Bump Stop PuckApollo1.875 in OD5/8 in ID1/2 in Tall90 DurometerRubberBlueEachRESRE-BR-5153-190- SKU:
- RESRE-BR-5153-190
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- MFG Part #:
- RE-BR-5153-190
$15.99Qty in Cart: 0Quantity:Price:$15.99Subtotal:
