Hi all, I'm not sure what I did, but I might have messed up. I went to replace the front output seal on my Dana 300. Went pretty well. Started to put it back together. I put the yolk nut on and I read it's supposed to be 120 ft lb of torque. Went to tighten it down, it got really really tight but then all of a sudden got a little easier to turn. Still somewhat tough but turnable. I kept turning it and (judging by how much of the output was sticking out) didn't seem to be getting tighter. The same amount of output shaft was sticking out. So I went to loosen it. It turns just as easily as the other way, but it's not coming off. It doesn't make sense, but I marked the nut and shaft with white paint to see if the shaft is turning with the nut. It's not. So the nut turns, the shaft it's on doesn't, and it's not moving either way. Did I just strip the shaft or nut completely? Nothing else makes sense to me. Pretty sure I just fucked up. Any advice?