Fyi, the current Summit house brand are Richmond Excel just like the Jegs house brand. I bought Yukon for my 14ff and went with Summit brand in the 10 bolt front since I only use 4wd if I get stuck. The ring gear had "Excel" on it just as the other poster said his Jegs gear did. I haven't swapped them out yet so I don't have feedback but I'm of the belief that the most important factor is proper set up/pattern. That said, I probably wouldn't use Excels in a rear dif unless it was strictly a commuter. Just read a lot of negatives about them but again, who knows what percentage of the negatives were set up correctly. It's my opinion from research that Motive Gear is a decent middle of the road brand. I've not run those but during hours of research, many feel they are a good bang for the buck.