I am trying to sort this braking delima out, can anyone tell me what the napa brake line extension part number are: Front lines PN:36744 Rear lines PN: ?? (Cannot find it) Are these the ones? Also for a Dana 60 front axel does anyone have the part number for front brake lines, the people at napa are trying to tell me that one side is different than the other. After some reading around I found out that the 10 bolt lines(with bajo fitting) should bolt up to a GM D60, is this true? If anyone has the part numbers please post up. Please Help.