Allstar Performance Lower Spring Cup - Weld-On - Light Weight - Steel - Black Paint - 5" Springs - 3" OD Axle Tubes 4125CSMBU 1/8"NPT fitting is commonly used

1/8"NPT fitting is commonly used in aftermarket calipers

These grade 8 black oxided allen head studs make installation a snap

375 in Thick

This system integrates into the existing design of the ST5 helmet and does not require any drilling of the shell or modifications to the internal EPS foam

Allstar Performance Lower Spring Cup - Weld-On - Light Weight - Steel - Black Paint - 5" Springs - 3" OD Axle Tubes 4125CSMBU 1/8"NPT fitting is commonly usedSteel spring cup has a 7" wide curved base that welds to the top of a 3" diameter rear end axle tube creating a flat mounting surface for a 5" O. D. racing springs. Commonly used to replace OE style pigtail lower spring mount. Sold each. Specialty items for the Shop, Trailer and Track. The Allstar Performance brand offers thousands of hard to find, specialty items that cover many segments in the performance aftermarket. For over 30 years, customers