This Allstar Performance spring cup is a Pro Series upper bolt-on swivel top plate assembly with a 7/16-20in thread, designed for 5.5in OD springs. It is made of steel and finished in cadmium.
Spec Sheet: Allstar Spec Sheet
Compatibility
This is a universal-fit component for 5.5in OD springs and is not limited to a specific vehicle make or model. Confirm your spring OD before ordering.
FAQ
What spring OD does this cup fit?
ALL56078 is designed for 5.5in OD springs.
What thread size does this swivel cup use?
ALL56078 uses a 7/16-20in thread.
Is there a version for smaller springs?
Yes. ALL56077 is the same Pro Series swivel spring cup design but sized for 5in OD springs instead of 5.5in OD springs.
How is this cup installed?
ALL56078 is a bolt-on upper spring cup with a swivel top plate.

