I've found a nice lly zf truck. Looks great descent miles, only down side is the owner says fourth is making a noise. So how much would this cost to fix, say worst case?
I bought my zf-6 with 170k and it was going in 5th fine but jumping out. ended up being a roll pin in the shifting fork but replaced the entire 5th gear assembly and it wasn't horrible. few hundred for parts and a few hundred more for labor. if you can get it caught early you're probably better off before it tears anything else up in there.