So I put an '83 280zx booster and 15/16 MC on the other day, during the install I lipped the checkvalve fitting in the bottom of master cylinder. Becuase of that I cannot get the brake line flare to seal properly. I'm getting a tiny bit of seeping around the threads every couple pumps. Is there any replacements available, we have no z's in the junkyard and I already tried to order replacements of Nissan parts, but they are discontinued. Any help? finding replacements. Also what degree of flare are the fittings? I have already tried to smooth out gouge but even with nice 2000 grit I couldn't make the bevel right perfect enough.