I obviously need new brake pads for my front stock L brakes. I am sure the drums probably need to be worked on too. Eventually I will put the Subaru (red) 4pot front and 2pot rear on.

So this leads me to this question: If I go ahead and put the 4pot front on and left the rear drums on for time being will i run into any problems? If so what? To me I am thinking just get new pads for now and keep saving to do the front and rear at the same time, but I figure I would ask. Thanks
-Joe