Boy oh boy someone was watching out for me. Heading to downtown Chicago on I55 doing 70 to 80 mph. Get off the Dan Ryan West single ramp. At the top where it merges I was going to go right lane and heard weird noise. Pull over in barricades and walk around truck, no flat tire. Im like got to make it to lawyer. Made it there doing 20 mph with hazards on. Inspect vehicle to find both upper control arms cracked at the front rolled formed metal due to rust. Mannnn, rearend turned up and driveshaft yoke screwed up the strap bolts. had to pound socket on old bolts and pray they loosened and didnt slip out of socket. Had to tap threads in diff yoke to accept slightly longer bolts for straps. Broke emergency brake cables. Popped left side rear airbag coming off tow truck due to reversing drivetrain. Mannn, if I was doing 80 and that happened would of been a whole different story here I can imagine. The shocks fully extended holding rearend from turning any more, but high speed would of probably ripped the shocks out of their mounts. Anyway I have never seen any mention on here about watching out for this problem, well here I am. Maybe we should have an inherent problem section or safety section for things to watch out for. Sooooo....watch out for your upper control arms rusting away.