GVWR>GAWR and Stabilizer Issues

The first concern I have is around the cargo capacity due to low axle rating.  I neglected to notice the low axle rating at dealer/assumed it was 3500lb but in actuality:

GAWR/Axle rating is only 3000

GVWR is still listed as 3243

The dry weight (from door tag) is 2459

Cargo Capacity listed as NTE 767, or 468 after subtracting fresh water weight.

Although remaining 468 is limiting enough, with GAWR it appears I should actually be limited to 225.

The only way I can make sense of GVWR exceeding GAWR is if they somehow deducted the tongue weight from the GVWR and considered that to be within the 3000 rating-- but from what I have read around DOT regs, the GVWR should never exceed the GAWR (indeed will often be lower based on other factors).

Are these ratings reasonable/do the listed ratings (GVWR>GAWR) make sense to anyone?

The second, more amusing issue is that my trailer appears to be shedding the stabilizers, particularly at the rear.  The first time I used them, I found half the bolts connecting them to the plate under the frame on the ground the next morning/sheared off at the point they connect to the mounting plate.  I was very conscious of not raising the trailer too much, only made a few turns beyond what could be done by hand.  Is it possible I did not raise it enough and the additional movement allowed by the trailer being “inadequately” stabilized caused them to break?  The stabilizers where set on an uneven asphalt driveway, perhaps combination of poor quality bolts, angle/stress? (Do stabilizers need to be set on "perfectly" flat surface?)

Any advice on these issues would be appreciated.

v/r, Andrew