Re: Rear chassis support
Yes, this crossmember is called the 'sill' (at least, that's what Super Scout Specialists called it). I replaced it
in my Scout II, and it should be the same in a Terra. It's spotwelded and bolted. I had a heck of a time getting
the two outermost bolts in - I think they're normally installed before the rear quarters are installed. If you plan
on going to fiberglass quarters, this would be a good time to replace the sill.
On the bodywork, I'm not sure if the manual has a diagram or not, but the fender is pretty easy to unbolt, and you should be
able to see things pretty well once it's off.