Description
A quality upper spring cup is fundamental to suspension geometry and load transfer—it directly affects how your springs seat under compression and influence ride characteristics across the entire chassis. The U-B Upper Spring Cup delivers precise fitment and durability for 5.0 to 5.5-inch OD springs, making it an essential replacement or upgrade component for racers and performance builders who demand consistency. Steel construction with black powder coating ensures corrosion resistance and longevity, whether you’re running road course, drag, or street applications.
- Spring Cup Type: Upper
- Compatible Spring OD: 5.0 / 5.5 in
- Material: Steel
- Finish: Black Powder Coat
- Fitment: Universal
- Installation: Bolt-On
- Quantity: Single Cup
- MPN: UBM35-1002






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