Frame Rust Damage

Is that the frame rail or a cross beam back by the muffler?

Either way, that is not good. Is it possible to get a photo a little further away so we can try and orient ourselves? Or maybe from the outside of the vehicle and then one from under a little further away so we know what portion of the car. I understand it is the rear passenger side but I am just not sure of the orientation because I think that is in front of the rear suspension. Is that correct? Thanks

That looks like the right rear section of the subframe between the rear axle and the bumper, the rusted section is just behind the bolted on crossmember. While it is possible to repair that area it may not be worth the repair depending on the condition of the rest of the frame and body. If it is rusted as bad in other places on the rails or body it may be better to replace the car. However you might be able to find a welding shop that could cut out the rust and weld in new steel. It all depends on the rest of the vehicle.

I've repaired rusted rails before but it depends on the rest of the vehicle. The older A body GMs like the Monte Carlo were well known for rusting through in the same area of the car. The outside looked like new but those rear rails were swiss cheese.
If you want to see a repair similar to what your car would need go onto YouTube and look for a channel named mustie1 he just did the rear rails on an Oldsmobile cutlass, "Frame Repair Time, on my $900.00 Oldsmobile cutlass backyard find." It would give you some ideas as to what to look at and how it could possibly be repaired.

Good luck, he has a few videos on there showing rust and chassis rot repairs. It will at least let you determine what to look for and an idea of what is involved. Good luck with it, please keep us in the loop as to what you find. Or shoot a few YouTube videos.

Just catching up on this one. Great info Steve. Let us know what happens when you decide on what to do and how it turns out if you decide to fix it. Thanks for using 2CarPros.