Chevy Changes Rear Brakes Disc Back to Drum?

Better brake feel is the "official" reason. They also upsized the front rotors. Everyone I know claim they work much better than the 4 wheel disk set-up. YMMV.

To many problems with the 4 disc setup! I think mainly with the Emergency brake! It was never hard to set, always mushy, even when brand new. People would forget to release it and they end up wearing out. Hell they shouldn't have to be replaced for many years and your at a stop when you set them, and release them when you go. With the drum brakes, much less problems. A nice hard parking brake. The drum brakes are a simple setup with a single large spring basically. It's probably cheaper, and less hassle. It's really also not needed on the rear of a truck! A high performance sports car, sure, but not a truck. I would also guess more stopping power for heavy loads. Much more shoe to drum contact then Pad to Rotor. I believe Chevy went back to Drums on the 2005 models on up. I have a 2003 with 4 wheel Disc. I've seen a lot of screwed up Parking brakes on Chevy trucks with 4 wheel disc's. The Drum brakes on the newer Chevy's seems to be holding up and lasting.

Either better braking or fewer problems with the parking brake setup were going to be my two guesses. On my 2003 I just bought, while the braking feel and stopping distance is good, they are not quiet as good as the old 1977 I used to have. I wonder if they had put bigger rotors how much difference there would be. It seems like all high performance sports cars use the four disc setup. Anybody know about any aftermarket larger rotors ( maybe drilled & slotted) available?