I have a set of old 15" 5x5.5 Permacast slots that I have rescued, but they have an oddball center bore. I scrounged up, somewhere, an old chrome derby style cabs with slotted lug holes and a smaller, approximately 3.5" OD on the cap. It works pretty well....but I cannot find anymore like it. The current offerings seem to be geared toward trailers...with cap OD of 3.3ish and 4.25or so. I can slot the lug holes on the smaller to fit the bolt pattern, but the ID of the center won't clear my rotor hat, and the larger is made for both 5 and 6 on 5 1/2" , and is too large to fit the bore of the wheels. Anyone have any ideas on where I might find some of the middle size? My other alternative would be to drill the face of the wheels for ET/Ansen style screw on center caps, but I would need some pretty large diameter caps to cover the center bore.
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