First post so go easy on me.

I am installing the LS1 and t56, and as many other components as I can, from a VZ SS Ute (9/04 compliance plate) into a 70s sports car. The swap has been done many times in the US and a few times here in Oz. Interestingly the one install here in Oz and a two times effort by a guy in the US to use the Holden clutch master cylinder have all resulted in the m/c leaking fluid out past the seals.

The alignment of the push-rod and the cylinder bore are perfect and nobody seems able to come up with a reason. Are the cylinders prone to leakage in the Holdens? Thanks.