[Ski-me]

OK, read the ad now.

Front driveline missing probably because there was some interference with the lift. Maybe it was hitting the exhaust??!? With a 4" lift, you may or may not have some driveline vibration. If the t-case is in stock position....maybe. If it's been dropped, that puts a bit more strain on engine mounts.

speedo being broken for that long, you'll have to be OK with it not working and mileage unknown. At this point, these trucks are more based off of drivable condition vs. mileage.

Speedo fix could be wires from t-case, DRAC box (magic box) or speedo itself. Just more parts to find at junkyard.....

With the stock rear end, it's going to get tired with 35" tires. Probably stick with 33's and drop to 2.5" lift.