Long to short... I need to put a proportioning valve on my sidecar disc as she grabs way too much disc when applying the rear foot brake sending me off the road. I bought a valve from JEGS and the treads don't match the brake connections on the brake:small3d031: lines It is an AN3 tread I believe on the valve. 2001 RKC with Liberty sidecar. Does anyone know if this is metric or something different on Harley brake line connections?