700 Rhino frames breaking

[bigcountry]

 May just be coincidence but mine and my buddies frame or actually the A arm on the front lower rear bracket at the frame. His actually broke in two, and mine was cracked. As a welder by trade its more of a structural issue, the welds are good, they are cracking next to the weld in the heat affected zone. Needs to be reinforced in that area, just wandering if anyone else has had or even noticed this???