p/n for master cylinder?

[RedlineRex]

looking to replace a dead master cylinder for my 91 sy. checked the sytyauthority.net parts list but came up empty (either that or i'm blind). a gm p/n is preferred unless there is an adequate aftermarket stock replacement. thanx in advance.

Paul

 

[V]

Any pitting in the bore? Are you sure it can't be rebuilt? The rebuild kit is part #18010083, but any quality parts store should have something similar. The complete master cylinder is part #18013433. The difference between new and rebuild kit is about $100.