I'm definitely new to this so I'm not even sure how to describe the issue i'm facing, i don't have the vocabulary for it yet. I've got an 80 CVI scout that is rusty in most of the typical places, but reasonably good - i think - underneath. most of the body mounts are good, but there's a serious amount of rust/plain old rot on the third row (from the front) of mounts. but it's really not under the actual body mounts, it's the support arms (?) that extend from the mounts towards the outside of the car. i think the other 3 rows of mounts are considerably better and serviceable, and a PO supported the hell out of the floor with 1X1 tubing, so i don't think it's unsafe or anything, but it needs to be addressed. i have some basic tools, some even more basic skills, and a couple of good folks who are willing to help me and try to get this right, but i need to know what to buy, really, in order to get started. i've attached the best photo i can muster (DSC_0041.JPG) - the frame is to the right, the rear of the truck is towards the bottom of the photo, and the wheel well for the rear passenger side (and the rust) is towards the left. I guess what i need to do is cut that whole bad piece out (is it a support arm? whatzit?) and replace it with the body off of the frame? i have the exact same situation on both sides. the rust looks awful in the photo but not nearly soooo bad in person; i'm hoping to mainly use a rust fixitave sorta product like mad down there; it's pretty solid despite the surface rust. i'll include a gratuitous topless photo here as well. this is the *good* side. the fender is off on the driver's and the quarter is trash. thanks for any help/advice.