Cascade Crew

[91camaro_rs]

ok so i have a 9 bolt rear end, and i put on new pads and rotors when i did the rear end swap but the rear brakes started to squeak really bad, last week i found out my passenger side brakes were covered in oil and my axle had a bad seal, popped axle out and replaced seal so thats taken care of and now that i work at oreillys i can warranty out stuff easily, so i figured i should swap out the 1987 calipers out for some new ones to stop the squeak, but here is my question, are the brake pads on this rear end the same as my front brakes?

the part numbers i see at work are the same for the most basic brakes, but for semi mettallic the numbers are different which is confusing, basically i wanna put ceramics on the rear and i just need to verify that the pads are the same between front and rear