Famous last words. It's a horrible job. The "official" method involves removing the roof, rear wings, and tons more, so you can replace the whole rectangular frame. Paddock (and others) sell a repair section (RR61) for about 38 quid, and you'll need bolts and mounting rubbers at about £13, but you still have to remove the lower tailgate, the rear floor, probably the fuel tank, and a few other odds and sods.
You then have to support the roof, to stop the rear body sagging while you hack away with the angle grinder. With the one I did, I also cut away part of the repair panel to make it easier to wiggle into position, but this may not be possible if yours is rusty too near the ends.
It's a foul job that makes doing sills and footwells seem fun.
The funny thing is, no-one selling a Rangey has *ever* known it needed doing. "Totally rust-free". "Er well, yes, apart from that".
No matey, the thin metal surround bit. Tailgate aperture i suppose. I don't need the whole lot, just the bit around the boot lip & below. Might need a crossmember yet too!!
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