Just an FYI on my brand new G27 wheel, it took about 1 1/2 hrs to disassemble, do the fix, and put back together. Was fairly easy to do but you just have to be careful when disconnecting the tiny connectors on the circuit boards. I think the most important thing is to make sure the gear rack goes back together in the same position, if not the wheel won't calibrate and you'd have to take it all apart again. No, this didn't happen to me, I just read about it so was extra vigilante when doing that!
After a few hours of use last night all seems well.
Shouldn't have to do this on something that costs a few hundred bucks and it's just a case of two small screws not being tight enough.
I sent an email to Logitech, see if I hear anything back