Another example of a tack welded in place gusset.
Next, Zac did the final welding on the easier-tacked-up parts. Next, it was time to tackle the more difficult parts, the differential mount reinforcement, and the lower control arm pick-up point relocation bracket.
The diff mount on the cross member is a weak area. Only one thin layer of sheet metal one small doubler patch keep the diff from getting ripped out of the car. Our own Project STurdteen had this happen.
Although it’s not a problem to weld on with a Mig welder or a bigger filler rod, Zac wanted a very tight fit between the reinforcement piece and the cross member. He spent a lot of time hand-fitting it to keep the gaps to be filled by the welds tight.