Mustang II again. I need to replace my brake lines to my front calipers. I want to go to braided stainless, which has AN fittings so I will need adapters. As best I can tell, the line end has a female 3/16" tube fitting and the caliper end is a 1/4" male -pipe thread?/tube fitting? or something else. There appears to be a sealing washer built into the back of the hose fitting. Can anyone tell me what size this end really is (and confirm the 3/16" end)? Most of the new lines seem to be 3-AN, but some are 4-AN. Is there a preference if I have a choice? Thanks,as always.