Evidently Ranger wheel nuts are only good for 4-6 uses, after that you have to replace them, sure it says so in the book. Rattle guns are their arch enemy
I has a Discovery tyre replaced after I ripped it apart on gabbro rock in Scotland, fair play to the Disco, I didnt know it was flat until we got out to take pictures at the top of the track, figured that as I had not realised I had a flat so far there was no point in changing it on top of a mountain so drove on down to the bay where we changed it.
Anyway, a week later we set off traveling 9 hours home with 3 tyres showing the white stitching I got the ripped tyre fixed and replaced one of the worn tyres with it. The guy in the Tyre shop in Fort William used a rattle gun. Fast forward less than an hour we are doing 80mph through Glencoe and my mate said he could feel a vibration getting worse, he looks out of the passenger window and shouts stop! Apparently the wheel was wobbling.
We got out (all 7 seats taken) and every nut bar one was almost off the thread. No idea how he managed to screw up 4 bolts but it didnt end there. When I got home and went to replace all the other tyres, the stupid guy has cross threaded every nut on the spare wheel and the garage couldnt get it off.
Dread to think what could have happened losing a wheel at 80mph next to the rocky moor over Glencoe! Always check my wheel nuts now when I get a tyre changed.