first off its nice...
now comes the Tech side to it... they site said it can handle up to a 39" tire .... I'm sure it can, but look where it attaches to .... the body just behind the tailgate hinges
assume the swing out weighs 100 lbs.... now throw a 39" swamper on .. now add another 300 Lbs
you've got 400 Lbs attached to 2 simple points on the body thats prolly the size of 2x2" area < which isnt all that thick to begin with>
another way to look at it, would be like this....
swing the tire out.... the tire will wont to droop... trying to pull the upper mount out of the body & the bottom well the bottom is trying to push through the body add Jerry cans & the lock box with equipment.... after its swung out the weight can easily double on those 2 mounts
it is better to buy a solid swingout/ bumper combo... it if gets messed up < say a latching system or whatever> heat & a hammer can always make it better... or cut the old latch style off & weld a new one in place
Especially for that price!
take a look at some Yj's that has been carrying a 33 on the tailgate.. open it up & try to pick the gate upwards... 9 times out of 10, there will slop in the hinges
same thing with this system after awhile, except the play will be in your rear quarter panel
hope this helps