75 Duster new brake pads won't fit

Dana67Dart said
I have found that the inner pad wears faster than the outer. That's probably why they are different thicknesses.

Are you sure you are pushing the piston all the way into the caliper?

If you look at the specs from other manufacturers are they the same?

Are you sure the pads and calipers and disk are correct for your application?

What I'm getting to is are the front disks OEM to the car rather than a swap?

It is original equipment. The piston is all the way into the caliper. I have found that the specs are different in other manufacturers. I bought another set and we'll see what happens when they arrive. Thanks!