I gutted my old bent tubes and had 3/8 wall DOM tubing installed. I had a shop do it, $500 total, and I brought the rear in gutted of all but the gearing.
I did this as I already had bent tubes. I also have the low gears, detroit locker and warn full floater in it already, so it was cheaper route than a new housing workover. Jeep ran great with 33's, but when I went to 35" tires, they bent after some hard wheeling and my rear wheels were no longer parallel to each other. Looked funny.
If your tubes are bent, I'd gut it as I did. If not, then a brace is a sound investment.