New RVers with old gear

I would be willing to bet you have airplane gears in that Blazer. Find someone to swap in some 3.73's or 3.92's and you'll be golden. After all, this would have been a common combination of tt and tv back in the day. The great thing about those old Chevy's is that they are cheap an easy to work on and parts are plentiful. Love it by the way!