Can a cracked frame be repaired?
It can, but this requires very specialized welding and metal working techniques. This is a specialty requiring a knowledge of welding, heat effect zones, high strength low allow (HSLA) metals, stress relieving and more. The metal must be repaired to its original strength but not beyond. Plating and reinforcing the area of the crack can cause stress risers which will create future cracks in other areas. This type repair is best reserved to a frame and unibody specialist.