Jim; I have the seal rings. I looked at online hydraulic places, closest adapter was M10x1 to M10x1, I need M8x1 M10x1. There are also threaded banjo fittings but smallest again was M10 hole, M10x1 fine thread, I need the hole to be M8 so I can use the BMW banjo bolt (M8x1). I guess it can be custom made but do I want a minimum order for >100 bucks? May be I can shrink the M10 hole to M8 somehow, using a small delrin bushing inside, drilled to have the fluid movement?