Problems with 2004 GMC Canyon WHEELS

Undercarriage rust caused spare tire/wheel to fall from under the vehicle.

On october 5, 2016, i took my truck over to my mechanic to have my brake lines bled as i replaced the right front caliper. when they took the right front tire off, they had shown me that the lower left control arm mount was going to fail. there was no failure as of yet and the vehicle was stationary when the problem was found. it was severely rusted out and cracked, as well as the frame and area around it was severely rusted and holes were visible. so i drove it home and took it over to a welder that has done repairs on the truck before and he said that it was too close to the suspension components and he wasn't going to fix it. so, as of now, i am looking for someone who specializes in automotive welding, but there not too many people here in my area who specialize in this kind of work. inspection is coming up and i doubt it passes. mechanically, i have has few problems with this truck and would much rather fix it than get rid of it. pictures i am posting show the severity of the damage.

Tl*the contact owns a 2004 gmc canyon. the contact stated that one stud broke off of each tire on the front driver side and rear driver side of the vehicle when the tires were rotated. the dealer stated that when this year, make and model vehicle was being made it appeared that gmc was getting low quality steel from japan. this failure has not occurred on any other year, make and model canyon. the failure mileage was 17000 and the current mileage was 22000. updated 9/13/10 *cn the dealer replaced all 6 left front wheel studs. updated 09/15/10

While driving on local streets or highway, at any speed, a vibration occurs from the front tires. sounds and feels like a rock is stuck in the tire (shimmy). this happens every time vehicle is driven and sometimes more noticeable then others. dealer rotated tires and state that no defects were found