I have a 94 RX-7 and my dad was changing the brake pads.

First of all we put on Hawk pads and noticed that it fit better removing the new smaller shim glued to the pad.

However, He noticed that only the back brakes and only the inside ones are worn. In fact they were paper thin. Anyone with ideas? Is there an adjustment that needs to be made?

Thanks.

 

make sure the caliper slides are free and loose,not seized.They have to be able to move freely in and out.
If thats good,then i would recomend caliper overhaul,the piston might not be returning properly seized causing the inner pad to drag.