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 Ball Joint Sleeve 40-3300
U-B MACHINE
MSRP: $18.99Now: $18.04Was: $18.99Ball Joint SleeveScrew-In Ball Joint1 in LongSteelNaturalEachUBM40-3300- SKU:
- UBM40-3300
- Availability:
- Ships Same Business Day
- Weight:
- 0.33 LBS
- MFG Part #:
- 40-3300
MSRP: $18.99Now: $18.04Was: $18.99Qty in Cart: 0Quantity:Price:MSRP: $18.99Now: $18.04Was: $18.99Subtotal: -
On Sale
U-B Thread Insert 3/4-10 40-2123
U-B MACHINE
MSRP: $14.99Now: $14.24Was: $14.99Sway Bar Adjuster Insert3/4-10 in ThreadSteelCadmiumUB Machine Easy Access AdjusterEachUBM40-2123- SKU:
- UBM40-2123
- Availability:
- Ships Same Business Day
- Weight:
- 0.07 LBS
- MFG Part #:
- 40-2123
MSRP: $14.99Now: $14.24Was: $14.99 -
On Sale
U-B 1.625 Eye End For Adj Sway Bar 40-2122-162
U-B MACHINE
MSRP: $29.99Now: $28.49Was: $29.99Sway Bar Adjuster Eye3/4-10 in Thread1-5/8 in BarSteelCadmiumUB Machine Easy Access AdjusterEachUBM40-2122-162- SKU:
- UBM40-2122-162
- Availability:
- Ships Same Business Day
- Weight:
- 0.45 LBS
- MFG Part #:
- 40-2122-162
MSRP: $29.99Now: $28.49Was: $29.99 -
On Sale
U-B Eye End For Adj Sway Bar 40-2122
U-B MACHINE
MSRP: $27.99Now: $26.59Was: $27.99Sway Bar Adjuster Eye3/4-10 in Thread1-1/4 in BarSteelCadmiumUB Machine Easy Access AdjusterEachUBM40-2122- SKU:
- UBM40-2122
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- MFG Part #:
- 40-2122
MSRP: $27.99Now: $26.59Was: $27.99 -
On Sale
U-B Sway Bar Adj Rod 3/4-10 x 11 40-2121
U-B MACHINE
MSRP: $25.99Now: $24.69Was: $25.99Sway Bar Adjuster Screw11 in Long3/4-10 in ThreadSteelCadmiumUB Machine Easy Access AdjusterEachUBM40-2121- SKU:
- UBM40-2121
- Availability:
- Ships Same Business Day
- Weight:
- 1.20 LBS
- MFG Part #:
- 40-2121
MSRP: $25.99Now: $24.69Was: $25.99 -
On Sale
U-B Easy Access Sway Bar 40-2120
U-B MACHINE
MSRP: $77.99Now: $74.09Was: $77.99Sway Bar Bolt and EyeEasy Access3/4-10 in ThreadSteelCadmium1-1/4 in BarsKitUBM40-2120- SKU:
- UBM40-2120
- Availability:
- Ships Same Business Day
- Weight:
- 1.84 LBS
- MFG Part #:
- 40-2120
MSRP: $77.99Now: $74.09Was: $77.99 -
On Sale
U-B Sway Bar Bolt 12 Alum 40-2111
U-B MACHINE
MSRP: $33.99Now: $32.29Was: $33.99Sway Bar Bolt12 in Long1-1/2 in EyeAluminumBlack PaintEachUBM40-2111- SKU:
- UBM40-2111
- Availability:
- Ships Same Business Day
- Weight:
- 0.64 LBS
- MFG Part #:
- 40-2111
MSRP: $33.99Now: $32.29Was: $33.99 -
On Sale
U-B Sway Bar Bolt 11.5 in Steel 40-2109
U-B MACHINE
MSRP: $25.99Now: $24.69Was: $25.99Sway Bar Bolt11-1/2 in Long1-3/8 in EyeSteelCadmiumEachUBM40-2109- SKU:
- UBM40-2109
- Availability:
- Ships Same Business Day
- Weight:
- 1.68 LBS
- MFG Part #:
- 40-2109
MSRP: $25.99Now: $24.69Was: $25.99 -
On Sale
U-B C/O Mount Narrow For Round Tube 35-3325
U-B MACHINE
MSRP: $12.99Now: $12.34Was: $12.99Shock MountNarrowCoil-OverWeld-OnSteelNaturalUniversalEachUBM35-3325- SKU:
- UBM35-3325
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- MFG Part #:
- 35-3325
MSRP: $12.99Now: $12.34Was: $12.99 -
On Sale
U-B Shock Mount 1.75 Clamp On 35-3323
U-B MACHINE
MSRP: $21.99Now: $20.89Was: $21.99Shock MountClamp-OnSteelBlack Powder Coat1-3/4 in OD TubeEachUBM35-3323- SKU:
- UBM35-3323
- Availability:
- Ships Same Business Day
- Weight:
- 1.26 LBS
- MFG Part #:
- 35-3323
MSRP: $21.99Now: $20.89Was: $21.99 -
On Sale
U-B 1.25 Shock Mount 35-3321
U-B MACHINE
MSRP: $21.99Now: $20.89Was: $21.99Shock MountClamp-OnSteelBlack Powder Coat1-1/4 in OD TubeEachUBM35-3321- SKU:
- UBM35-3321
- Availability:
- Ships Same Business Day
- Weight:
- 1.15 LBS
- MFG Part #:
- 35-3321
MSRP: $21.99Now: $20.89Was: $21.99 -
On Sale
U-B C/O Mount Wide For Flat Mount 35-3310
U-B MACHINE
MSRP: $13.99Now: $13.29Was: $13.99Shock MountWideCoil-OverWeld-OnSteelNaturalUniversalEachUBM35-3310- SKU:
- UBM35-3310
- Availability:
- Ships Same Business Day
- Weight:
- 0.57 LBS
- MFG Part #:
- 35-3310
MSRP: $13.99Now: $13.29Was: $13.99 -
On Sale
U-B Shock & Rigidity Bar Mount 35-3170
U-B MACHINE
MSRP: $26.99Now: $25.64Was: $26.99Shock MountLongWeld-OnSteelNaturalRigidity BarEachUBM35-3170- SKU:
- UBM35-3170
- Availability:
- Ships Same Business Day
- Weight:
- 0.73 LBS
- MFG Part #:
- 35-3170
MSRP: $26.99Now: $25.64Was: $26.99 -
On Sale
U-B Coil over mount LH short 35-3130
U-B MACHINE
MSRP: $15.99Now: $15.19Was: $15.99Shock MountDriver SideWeld-OnStraightSteelNaturalUniversalEachUBM35-3130- SKU:
- UBM35-3130
- Availability:
- Ships Same Business Day
- Weight:
- 0.57 LBS
- MFG Part #:
- 35-3130
MSRP: $15.99Now: $15.19Was: $15.99 -
On Sale
U-B Coil over mount RH short 35-3120
U-B MACHINE
MSRP: $15.99Now: $15.19Was: $15.99Shock MountPassenger SideWeld-OnStraightSteelNaturalUniversalEachUBM35-3120- SKU:
- UBM35-3120
- Availability:
- Ships Same Business Day
- Weight:
- 0.54 LBS
- MFG Part #:
- 35-3120
MSRP: $15.99Now: $15.19Was: $15.99 -
On Sale
U-B Weight Jack Bolt 8 x 3/4-10 35-1107
U-B MACHINE
MSRP: $22.99Now: $21.84Was: $22.99Jack Bolt3/4-10 in Thread8 in LongSteelCadmiumUniversalEachUBM35-1107- SKU:
- UBM35-1107
- Availability:
- Ships Same Business Day
- Weight:
- 0.88 LBS
- MFG Part #:
- 35-1107
MSRP: $22.99Now: $21.84Was: $22.99 -
On Sale
U-B Weight Jack Bolt 11 x 1 35-1104
U-B MACHINE
MSRP: $27.99Now: $26.59Was: $27.99Jack Bolt1-8 in Thread11 in LongSteelCadmiumUniversalEachUBM35-1104- SKU:
- UBM35-1104
- Availability:
- Ships Same Business Day
- Weight:
- 1.46 LBS
- MFG Part #:
- 35-1104
MSRP: $27.99Now: $26.59Was: $27.99 -
On Sale
U-B Weight Jack Bolt 8 x 1 35-1102
U-B MACHINE
MSRP: $24.99Now: $23.74Was: $24.99Jack Bolt1-8 in Thread8 in LongSteelCadmiumUniversalEachUBM35-1102- SKU:
- UBM35-1102
- Availability:
- Ships Same Business Day
- Weight:
- 0.90 LBS
- MFG Part #:
- 35-1102
MSRP: $24.99Now: $23.74Was: $24.99 -
On Sale
U-B Upper Spring Cup LW Steel UBM35-1002
U-B MACHINE
MSRP: $23.99Now: $22.79Was: $23.99Spring CupUpper5.0 / 5.5 in OD SpringsSteelBlack Powder CoatUniversalEachUBM35-1002- SKU:
- UBM35-1002
- Availability:
- Ships Same Business Day
- Weight:
- 1.13 LBS
- MFG Part #:
- 35-1002
MSRP: $23.99Now: $22.79Was: $23.99 -
On Sale
U-B GN Spring Cup 35-1001
U-B MACHINE
MSRP: $56.99Now: $54.14Was: $56.99Spring CupUpper1-8 in Thread6 in ID5-1/8 in HeightGrease FittingSteelNaturalUniversalEachUBM35-1001- SKU:
- UBM35-1001
- Availability:
- Ships Same Business Day
- Weight:
- 5.40 LBS
- MFG Part #:
- 35-1001
MSRP: $56.99Now: $54.14Was: $56.99