I can't tell you about Dana 60 gears, but I had a set of Motive 4.56 gears for the 9.25" axle for my Dakota.

I even had Bob help me install them...sheesh, 4 years ago now? it's been awhile.

I put several thousand miles on them, then when I parted out that truck, sold the axle to a buddy of mine who put about 12k miles on it in a year, then put his truck back to stock and sold it, so that axle is now with it's 3rd Dakota up in Northern Ohio, still going strong.

No gear noise (thanks to having them properly and professionally set up by the folks at BGR!), and held up to my big block TKO truck.