If im not mistaken there was a Duramax at IRP (Indy Raceway Park) this June that turned a 10.76 in the 1/4. Not sure if it was an lly or lb7. It was an extended cab short bed and it was pewter. This was during the big three day DHRA event. I will have to do some digging on the net and see if im correct on this time.
You're right, but this thread is about diesel fuel only 1/4 mile run. Big difference, besides that, there is about a 600-800 pound difference in race weight. (Which would be about 2-3 tenths!)