Hmm... I'm about to drive this thing again tomorrow to test the re-done suspension (turns out that among other things there was way too little oil in the shocks). I've been a bit worried about driveline binding or whatever you call it, as aside from affecting speed it'll also make the electronics run hotter from being overworked. I was just randomly turning the wheels by hand, and I noticed that turning the front wheels meets with a lot more resistance than turning the rear wheels, the latter which turn quite freely. So I suppose the binding is coming from the front.

I wonder if it is the diff, not much else it could be I guess. I had one shim left total in the two diffs after the rebuild because they were too tight otherwise, but I can't recall which diff it was that has the shim left. Now I'm thinking maybe it's the front and that is making it still too stiff and therefore making the whole driveline bind. I guess I gotta take the whole darn front apart once more...