U can try a LSD (limited slip locker) in the rear and front too. I put a LSD in both on my 2500 and am happy with them. No buttons to push, no electronics or air to worry about, they just work when needed and don't when U don't need it. Pretty cost effective too, about $500 per axle for the part. With your 2500 and it being a diesel, I'm sure your rear axle is already as big or bigger than a Dana 60. I'll see if I can post a pic of mine.