I am replacing the steel brake lines in my 32 year old Pontiac with Nicopp lines. Most of original OEM tube (flare) nuts look in better shape (less rust) than the aftermarket nuts I replaced several years ago during a brake line repair. The AM nuts are made by AGS in either China, Korea or USA, but no way to tell which is which. I have not had good luck with other hardware made in China. Is there any reason to replace the OEM nuts if they look OK ?
Last edited: