So the next few things I'm going to work on made me realize something. The front crossmember I received back is actually from a 71-72 C10. I'm not sure what all the differences are, but the big one I see right now is how the front brake lines install. On the crossmember that I removed, the lines installed on the back side. Here it is during the teardown
The lines on this 1972 install on the front side. Hard to see but here is the bracket for the fitting.
I originally ordered a stainless CPP front brake line set for a 67-70. These obviously will not work now. So I needed to find a 71-72 set. I have zero experience making stainless brake lines so, I'm trying to make it easy on myself by getting pre-bent. Inline Tube had kit #SCTB72F2.
Here is the RF line just laid on the crossmember. You can see how they will route under the engine stand and toward the front bracket.
