Ok I Might have made a dumb mistake..... I Have several sets of brake / clutch pedals to choose from, 39 ford car, 48 f-1 , and 41-47 1.5 ton ford. Well I used the 41-47 1.5 ton the master cylinder looks like an f-1 and similar to the 39 but after a place the mastercylinder adapter I got from chassis enginerring I quickly realivzd whil it has a 3 bolt pattern it is not the same at all. I'm not trashing them at all their part looks real nice, and It says 39-40 ford on the invoice. Guy on the phone said it should fit a 41 truck ( I should have said big truck ) I'm gonna keep it with my 39 pedal set for a later build so no harm there, But Does anyone make an adapter for my pedal set ?Or am I gonna have to make my own adapter.. I have looked all over with no luck....