A little update. I fired off the engine in the truck this last weekend. Progress really stalled at the height on the summer. I've gotten the '87+ fuel system installed and wired, the engine/trans installed (No spacer was needed on the transfer case/rear trans mount), and the harness connected up. My next hurdle is trying to bleed the concentric internal slave cylinder. I'm using the hydraulic master from a late model hydraulic sm465. I've read conflicting information on whether that master will have sufficient bore and stroke to functionally work with a tr6060 slave, but they are a bear to bleed, so I'll find out eventually. The fuel switch, though it looks the same, requires modification of the mounting hole in the dash. I used another truck to make a template and used some files until it fit well. I had an issue with one of the fuel tank selector switches where it looked like a hole on one of the spades was not fully knocked out, so I had to sand the "bump" off of it. I spent more time than I expected converting the front end to a '74 style. I had to swap the center supports, and then remove the existing mounts on the sides and "graft' (small sheet metal screws) the sheet metal from the donor core support.