While I agree in theory, specified torque settings are for threads in good condition and nice and clean.
On a 4wd that gets used offroad its practically impossible to maintain thread condition unless you lube them with something to prevent them rusting.
IMO, the danger with using a torque wrench on less than perfect threads is that they will usually end up under-torqued.
I've seen quite a few "torqued up dry" wheel nuts come loose, and when you do them by hand you know why. They quickly go from zero to full torque and you know they are binding/sticking and not actually putting the required tension on the threads.
Although I have torque wrenches, I've never used them on landy wheel nuts. My method is grease them, tighten by hand, and check regularly.
Back to the original post though, the wheel brace that came with my 1985 County had the 2 halves welded together. Suggest you do the same and just go easy on the tightening..
As others have said, most likely paint is your current issue.
Steve

