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
- Subtotal
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On Sale
U-B Upper A Arm 8 Steel Offset Ball Joint Style 15-0809-5R
U-B MACHINE
MSRP: $122.99Now: $116.84Was: $122.99Upper A Arm 8 Steel Offset Ball Joint StyleControl Arm15 SeriesTubularUpper8.000 in Long1-1/4 in OffsetBolt-In Ball JointSteelBlack Powder CoatGM A-Body / G-BodyEachUBM15-0809-5R- SKU:
- UBM15-0809-5R
- Availability:
- Ships Same Business Day
- Weight:
- 3.35 LBS
- MFG Part #:
- 15-0809-5R
MSRP: $122.99Now: $116.84Was: $122.99 -
On Sale
U-B Upper A Arm 8 Steel Ball Joint Plate Style 15-0804
U-B MACHINE
MSRP: $113.99Now: $108.29Was: $113.99Upper A Arm 8 Steel Ball Joint Plate StyleControl Arm15 SeriesTubularUpper8.000 in LongBolt-In Ball JointSteelBlack Powder CoatUniversalEachUBM15-0804- SKU:
- UBM15-0804
- Availability:
- Ships Same Business Day
- Weight:
- 3.18 LBS
- MFG Part #:
- 15-0804
MSRP: $113.99Now: $108.29Was: $113.99 -
On Sale
U-B Caster Slug .500 Offset 15-0040-E
U-B MACHINE
MSRP: $13.99Now: $13.29Was: $13.99Caster Slug .500 Offset Control Arm Caster Slug1/2 in ID Hole1/2 in OffsetAluminumNaturalSlotted Upper Control ArmsEachUBM15-0040-E- SKU:
- UBM15-0040-E
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- MFG Part #:
- 15-0040-E
MSRP: $13.99Now: $13.29Was: $13.99 -
On Sale
U-B Caster Slug .375 Offset 15-0040-D
U-B MACHINE
MSRP: $13.99Now: $13.29Was: $13.99Caster Slug .375 Offset Control Arm Caster Slug1/2 in ID Hole3/8 in OffsetAluminumNaturalSlotted Upper Control ArmsEachUBM15-0040-D- SKU:
- UBM15-0040-D
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- MFG Part #:
- 15-0040-D
MSRP: $13.99Now: $13.29Was: $13.99 -
On Sale
U-B Caster Slug .25 Offset 15-0040-C
U-B MACHINE
MSRP: $13.99Now: $13.29Was: $13.99Caster Slug .25 Offset Control Arm Caster Slug1/2 in ID Hole1/4 in OffsetAluminumNaturalSlotted Upper Control ArmsEachUBM15-0040-C- SKU:
- UBM15-0040-C
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- MFG Part #:
- 15-0040-C
MSRP: $13.99Now: $13.29Was: $13.99 -
On Sale
U-B Caster Slug Zero Offset 15-0040-A
U-B MACHINE
MSRP: $13.99Now: $13.29Was: $13.99Caster Slug Zero Offset Control Arm Caster Slug1/2 in ID HoleAluminumNaturalSlotted Upper Control ArmsEachUBM15-0040-A- SKU:
- UBM15-0040-A
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- MFG Part #:
- 15-0040-A
MSRP: $13.99Now: $13.29Was: $13.99Qty in Cart: 0Quantity:Price:MSRP: $13.99Now: $13.29Was: $13.99Subtotal: -
On Sale
U-B Caster Slugs (Set of 5) 15-0040
U-B MACHINE
MSRP: $46.99Now: $44.64Was: $46.99Caster Slugs (Set of 5) Control Arm Caster Slug1/2 in ID Hole3/8 in OffsetsAluminumNaturalSlotted Upper Control ArmsKitUBM15-0040- SKU:
- UBM15-0040
- Availability:
- Ships Same Business Day
- Weight:
- 0.17 LBS
- MFG Part #:
- 15-0040
MSRP: $46.99Now: $44.64Was: $46.99 -
On Sale
U-B Ball Joint Plate only upper control arm 4 bolt 15-0001
U-B MACHINE
MSRP: $6.99Now: $6.64Was: $6.99Ball Joint Plate only upper control arm 4 boltBall Joint PlateUpperSteelNaturalUB Machine 15 Series Control ArmsEachUBM15-0001- SKU:
- UBM15-0001
- Availability:
- Ships Same Business Day
- Weight:
- 0.51 LBS
- MFG Part #:
- 15-0001
MSRP: $6.99Now: $6.64Was: $6.99 -
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: $121.99Upper A-Arm 9-1/2in Metric 1-1/2in OffsetControl 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 -
On Sale
U-B Upper A-Arm 9 Metric 1-1/2in Offset 14-0909-6L
U-B MACHINE
MSRP: $120.99Now: $114.94Was: $120.99Upper A-Arm 9 Metric 1-1/2in OffsetControl ArmTubularUpper9.000 in Long1-1/2 in OffsetBolt-In Ball JointSteelBlack Powder CoatGM A-Body / G-BodyEachUBM14-0909-6L- SKU:
- UBM14-0909-6L
- Availability:
- Ships Same Business Day
- Weight:
- 3.25 LBS
- MFG Part #:
- 14-0909-6L
MSRP: $120.99Now: $114.94Was: $120.99 -
On Sale
U-B Offset Upper Control Arm 14-0829-6L
U-B MACHINE
MSRP: $120.99Now: $114.94Was: $120.99Offset Upper Control Arm Control ArmTubularUpper8.500 in Long1-1/2 in OffsetBolt-In Ball JointSteelBlack Powder CoatGM A-Body / G-BodyEachUBM14-0829-6L- SKU:
- UBM14-0829-6L
- Availability:
- Ships Same Business Day
- Weight:
- 3.23 LBS
- MFG Part #:
- 14-0829-6L
MSRP: $120.99Now: $114.94Was: $120.99 -
On Sale
U-B Offset Upper Control Arm 14-0809-5R
U-B MACHINE
MSRP: $119.99Now: $113.99Was: $119.99Offset Upper Control Arm Control ArmTubularUpper8.000 in Long1-1/4 in OffsetBolt-In Ball JointSteelBlack Powder CoatGM A-Body / G-BodyEachUBM14-0809-5R- SKU:
- UBM14-0809-5R
- Availability:
- Ships Same Business Day
- Weight:
- 3.19 LBS
- MFG Part #:
- 14-0809-5R
MSRP: $119.99Now: $113.99Was: $119.99 -
On Sale
U-B Offset Upper Control Arm 14-0809-5L
U-B MACHINE
MSRP: $119.99Now: $113.99Was: $119.99Offset Upper Control Arm Control ArmTubularUpper8.000 in Long1-1/4 in OffsetBolt-In Ball JointSteelBlack Powder CoatUniversalEachUBM14-0809-5L- SKU:
- UBM14-0809-5L
- Availability:
- Ships Same Business Day
- Weight:
- 3.19 LBS
- MFG Part #:
- 14-0809-5L
MSRP: $119.99Now: $113.99Was: $119.99 -
Bump Stop Spring 7000lb SBS7000
SWIFT SPRINGS
$92.65Bump Stop Spring 7000lb Bump Stop Spring2.125 in Free Length2.000 in OD7000 lb/in Spring RateSteelNaturalEachSWISBS7000- SKU:
- SWISBS7000
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- MFG Part #:
- SBS7000
- Spring Rate:
- 7000 lb.
$92.65 -
Bump Stop Spring 5000lb SBS5000
SWIFT SPRINGS
$92.65Bump Stop Spring 5000lb Bump Stop Spring2.125 in Free Length2.000 in OD5000 lb/in Spring RateSteelNaturalEachSWISBS5000- SKU:
- SWISBS5000
- Availability:
- Ships Same Business Day
- Weight:
- 0.80 LBS
- MFG Part #:
- SBS5000
- Spring Rate:
- 5000 lb.
$92.65 -
Bump Stop Spring 4000lb SBS4000
SWIFT SPRINGS
$92.65Bump Stop Spring 4000lb Bump Stop Spring2.125 in Free Length2.000 in OD4000 lb/in Spring RateSteelNaturalEachSWISBS4000- SKU:
- SWISBS4000
- Availability:
- Ships Same Business Day
- Weight:
- 0.80 LBS
- MFG Part #:
- SBS4000
- Spring Rate:
- 4000 lb.
$92.65 -
Bump Stop Spring 3000lb SBS3000
SWIFT SPRINGS
$92.65Bump Stop Spring 3000lb Bump Stop Spring2.125 in Free Length2.000 in OD3000 lb/in Spring RateSteelNaturalEachSWISBS3000- SKU:
- SWISBS3000
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- MFG Part #:
- SBS3000
- Spring Rate:
- 3000 lb.
$92.65 -
Bump Stop Spring 2500lb SBS2500
SWIFT SPRINGS
$92.65Bump Stop Spring 2500lb Bump Stop Spring2.125 in Free Length2.000 in OD2500 lb/in Spring RateSteelNaturalEachSWISBS2500- SKU:
- SWISBS2500
- Availability:
- Ships Same Business Day
- Weight:
- 0.80 LBS
- MFG Part #:
- SBS2500
- Spring Rate:
- 2500 lb.
$92.65 -
Bump Stop Spring 2000lb SBS2000
SWIFT SPRINGS
$92.65Bump Stop Spring 2000lb Bump Stop Spring2.125 in Free Length2.000 in OD2000 lb/in Spring RateSteelNaturalEachSWISBS2000- SKU:
- SWISBS2000
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- MFG Part #:
- SBS2000
- Spring Rate:
- 2000 lb.
$92.65 -
Bump Stop Spring 1800lb SBS1800
SWIFT SPRINGS
$92.65Bump Stop Spring 1800lb Bump Stop Spring2.125 in Free Length2.000 in OD1800 lb/in Spring RateSteelNaturalEachSWISBS1800- SKU:
- SWISBS1800
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- MFG Part #:
- SBS1800
- Spring Rate:
- 1800 lb.
$92.65