This is the situation I'm looking at...A '68 Mustang which has not been started or driven in 2 years. I know the car ran/drove well when stored and it has the original 289/C-4 drivetrain. The car has been in the Dallas, Texas area the entire 2 years. I'm told it was kept in a barn but can't verify it wasn't out in the elements. What mechanical problems can I expect to encounter? Is it likely the engine and trans would need a rebuild as well as the brakes? Any other likely mechanical issues due to storage? I'm talking strictly mechanical problems, not body or frame rust.