Don't be so quick to assume it was thieves.
A few months ago I changed the 8 spoke steels with off road tires on back to the alloys that were on my Y60 Patrol.
We drove up to the Peak District for a night the 3 Stags Inn at Wardlow which is about 70 miles from here.
When we got there I noticed that the n/s/r drum was hot and assumed that the brake shoes were binding for some reason. The following day we drove home and later that afternoon I decided to remove the wheel to investigate.
I went to crack the wheel nuts before jacking the truck up and, to my horror I found that all the nuts were loose... they were not much tighter than finger tight.
My initial thought was that the binding drum had got so hot that through some weird heating and colling process the nuts had become loose.
I removed the wheel and drum and could not find anything untoward with the brakes so replaced the wheel again and torqued it to about 70 ft lbs.
I then out of curiosity went to the other rear wheel, low and behold ALL the nuts on that wheel were loose. So I torqued those up to 70 ft lbs
Before I put the tools away I checked the tightness of all the nuts again, believe it or nut ALL were loose again
the truck had not moved an inch and it was literally 5 - 10 minutes after tightening them that they had come loose.
If someone had told me this I would not have believed them and thought that maybe they were loosing it slightly
The solution was to put back on the 5mm spacers, I didn't bother putting them on the first time as there were in another shed and I couldn't be arsed to walk up there :augie after doing so all has been fine and still is 4 months later.
So, as the doctor says
"check your nuts regularly"
There is some interesting
reading here too