Ok so when I bought my jeep, I knew that I would have to repair the passenger side rear section. It was noticeably rusted and I actually stuck my finger through it before I bought it haha. The jeep was otherwise spotless so I couldnt pass it up even though it had a lil frame damage.Over the past few weeks, it had started flaking rust (probably from moving again and not sitting at the dealership). Then, at the car wash the other day, the high pressure blew the rust right out of the frame leaving this:
Now, taking out a 22 gallon gas tank is a royal pain in the ASS. But I persevered. Using a transmission jack to lower it out of there and busting my knuckles a thousand times to loosen the screws on the hoseclamps.

I was intrigued to find that my gas tank was plastic:
Well, then it was on to wirebrushing the hell out of the undercarriage, because I will never see these parts of the jeep again after this repair is done. This is what the crossmember looked like after scraping off the rust flakes and a tiny bit of wirebrushing:
Tomorrow I will finish the rust removal and hopefully get some rust reformer and protective enamel applied to every nook and cranny there is. I also took the opportunity to use my bare hands to clean out any collected dust/packed in mud out of the entire vehicle! My fingernails are black now haha.
Will post pics and a summary of the finished job soon!