I'm trying to change the brake pads on the front of my 75 duster, but there isn't enough room for the new pads and the rotor between each side of the caliper... Am I doing something wrong? Any suggestions?  

Your caliper piston/s probably need pushed back in, very slowly, with large channelocks, or c clamp. then quickly assemble. otherwise open bleeder, push back, but then you may have to bleed brakes. If your piston`s in, your pads are wrong.  

Thanks, let you know how it goes tomorrow... hopefully success will be mine!  

C-clamp worked great. That was the problem. Thanks, really appreciate it.