Well so far there are no rattles at all (freeway and in town driving) I'm going wheeling this Thanksgiving week so I will be able to really see how it goes.
The bumper is solid and any rattles that occur can be fixed.
The hi-lift can be locked. I just ran an 8' master lock python lock thru everything /Gas cans,Hi-Lift and Tire.
I bought a super syphon so I wont have to remove the Gerry cans to fill up, so i will see how that works to.