SKU: ALL 56114
UPC: 848238029390
MPN: ALL56114
The ALLSTAR PERFORMANCE Upper Spring Cup 5in OD Spring (ALL 56114) is a bolt-on suspension component engineered for drag racing and high-performance vehicle builds where chassis control and load transfer are critical. This upper spring cup seats the coil spring assembly and transfers suspension forces directly to the frame, making it essential infrastructure for any serious bracket racer or street performance application relying on precision weight transfer during acceleration.
Manufactured in steel with a black powder-coat finish, the cup measures 3.25 inches tall and accommodates a 5-inch outer diameter spring—a common specification in aftermarket drag suspension setups. The powder-coat protects against corrosion during repeated cycles and extended storage, critical for vehicles subjected to moisture or salt exposure. Weighing 1.84 lbs, the component maintains structural integrity without unnecessary mass penalty. The bolt-on design simplifies installation and allows straightforward replacement or upgrade without frame modification.
This is the component for builders upgrading or restoring drag racing suspensions, weekend bracket racers dialing in chassis geometry, or performance shops standardizing on ALLSTAR components across multiple builds. The spring cup's role is unglamorous but fundamental—it anchors the spring and controls how load distributes under hard acceleration. Choosing a quality piece from a recognized performance manufacturer like ALLSTAR eliminates weak points in the suspension chain and ensures consistent performance across multiple race events.
ALLSTAR Performance has built reputation in the drag racing community for manufacturing suspension and chassis components that withstand repeated shock cycles and deliver predictable handling. The Upper Spring Cup 5in OD Spring is a direct replacement or upgrade component suitable for vehicles running 5-inch coil spring packages in independent front suspension or four-link rear setups commonly seen on dirt late-model and asphalt drag platforms.
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