I've got the FJ80 and an '88 NPR with 190000 miles on the clock. I plan to start the swap this weekend. I'll be posting on the IH8Mud forum as well. The NPR is running and I have the whole truck. The truck had sat for a year and it took some effort to get it running due to electrical etc. Once going it hummed right along. My question is what if anything should I consider replacing/rebuilding on the 4BD? I plan to replace the oil seals, and later replace the turbo with a T25. I considered getting the IP and the injectors rebuilt but then thought they are easily removable later if needed.