How many of us are there? Owners of Dodge based RV's?

I also use RockAuto. Browsed their site. Was able to narrow things down by eliminating the obvie. I'm still gonna have to do bit of reverse engineering for my mind to make right. No harm. No foul. I'll pull a front wheel, front shock, and rear shock to take dimensions of pertinent components. It is what it is. I've been finding parts for the '72 also that make better sense. blah blah. Such is life working with forty year old vintage iron while living in a parts-is-parts world .