Just installed these on my 2013 Cummins Diesel 4x4 RAM 2500 4x4. First impression: you are great. Much better brake disc than the standard brake pads my truck had. Great pedal feel now, very firm with a light touch. Overall much better stopping power. I just hope they don't chew on the rotors. This is the first time I have done brake work on this truck. As far as I can tell the original equipment and pads have done 88,000 miles. Bought used with 40,000 km mileage. so the brakes were most likely made either by the dealer i bought them from or by the original owner right before the sale.