VRV Toyhauler Cracked Axle Mounts

[Merlin]

@keeena. I see the cracked welds, but the photo without any of your labeling also shows a vertical crack in the crossmember above the weld.  Did you see that?

[keeena]

@Merlin - yep, I did notice that the crack has started propagating upwards. The bottom of these crossmembers should be in compression, not tension...so I'm a bit surprised why it would crack there. I was wondering if supporting the frame by the corners (middle of main frame spars drooping) may have caused it...I don't recall seeing them before but possible I missed them.