Thanks Brad...been away and just saw your reply. OK I have a GMC factory 4x4 Suburban ( I think ) When I got it it was standard brakes and steering. I had a mechanic convert it to a kit I bought from Bill's Truck Shop ( early gm anc chev parts ) It had a master cylindar set up that ran the breaks and the clutch ( with slave ) So the new 2 chamber MC for brakes whould not drive the clutch, so I added a hydralic MC for the clutch, modifided the clutch assembly and the slave worked fine and did not have to been changed.
Anyway I will check out the brake assembly and see if the new hole you mention was done. This may be the answer to the "low pedal"
Thanks for the help Brad.
EB.
