Yep.
The MII rear tubes are 2 inches. I thought they were bigger also, but I measured both a ubolt and the tube. I knew they were smaller at the ends than a normal 8inch, but not this small.
I have found a place online, but with shipping it will be about $45 for 4, with nuts and washers. Half inch diameter, the stock ones are about 7/16ths.
Have to think about that one for a bit. This is part of the "it's been a while since I have done this stuff sticker shock".
Thanks,
Russ