so, I got a 1998 ram 2500 5.9 Cummins. Up here in Canada we had a bad snowfall the other day and I was in 4x4 almost the whole night with bad vibrations (drivesshaft u-joint is shot). The next morning on my way to work I notice my 4x4 dash light flickering on and off every bump and it sounds like my front differential has engaged both axles even when im in 2hi. 4x4 still works and a steady light comes on when engaged. I took her on the highway and it started vibrating about 70kmh, so I bumped her up to 105 or so and I felt a little “bump” then no more vibration. Drove her home, put her in 4x4 and it works, drove back on the highway and truck is good to go. Did I brake something in my front end? Pulled the drain plug and had some oil in it but no shavings. Spun the front driveshaft and 3/4 of a spin, spins freely then gets tight for the other 1/4 then spins freely again, it’s tight from the axle input shaft cause if I just grab that it’s the tightest.. any ideas without pulling off the pumpkin?

what’s wrong with glitter? I have glitter in my rear end every time I check it but no shavings.

Does anyone know how to check everything in the diff? Like what to look for in bearings and gears and make sure everything is sound?

Thank you!

Thank you very much, I’m changing the diff fluid tommorow and I’m gonna inspect every little think, I’ll look to make sure all the edges are pointed not rounded and post a picture. Anyone know of any good aftermarket upgraded rear end gear shops or websites in Ontario Canada?