Well, I'm back without incident. The truck ran great. I went about 60 the whole way, which seems like a comfortable cruising speed for this vehicle. My speedo does the up-and-down thing between zero and 40. After that, it steadies out and is only off a few MPH, according to the GPS. When I was going 57, the needle was wavering a little between 55 and 60 so maybe the innards of my speedometer aren't as screwed up as I thought.
Anyway, everything worked well, it ran smoothly and I think I have a good chance of making it up to Cape Cod.
