Today involved a lot of hole drilling. I re-attached the tank and opened up the joint strip screw holes to final size. Then I took the tanks off and used my #8 nut plate jig to drill the rivet holes for the approximately 30 nut plates on the joint strip. Then I countersinked all the rivet holes.
I also prepped the holes on the z brackets for their nut plates. After deburring all the various holes I installed the nut plates on the tank z brackets.
Z bracket nut plates:
Joint strip screw and nut plate holes:
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