To drill the lower bar, I am working one layer at a time. All holes do go through the bar itself, so no worries about making a mistake here, so just the lower bar was drilled first. Next I drilled the spacers, by leveraging center line I drew and clamping them in place so they don't twist as I drill. After that I added and drilled through the reinforcement/doublers, and "centered" them. The directions call to cut them to size, but I have seen builders end up with them a bit short on the edges. I am going with a centering technique and then drilling them before I cut them, or shape them. This will allow me to get all edge distances correct. I will try to post pictures as I go. Also Some holes don't go through the reinforcements so I was able to cover them so as not to make a mistake here.
Once the Bar was drilled, I built a jig and drilled each left seat belt anchor. The right one will be drilled in assembly using the lower bar as a guide.
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