I'm pretty sure I blew my front diff. I was climbing a hill and heard a nice clank. After I would put in 4wd, go straight, and have a rhythmic jolt. So I think a few teeth are missing off the ring. I will drain the fluid soon to see what's up. Anyone else have a broken diff? Or know if the tundra/4runners will work as donors. Are these diffs weak? I was going to lock it. But I'm not sure I want to now lol.