1973 Plymouth Duster repair and rebuild

Notes for tonight

New 3/4 DD to 5/8 36 spline steering coupler delivered today. I am not thrilled with the fitment. Not sure if 9/16 would be correct. This one was specific to 5/8 Chrysler unlike the universal 5/8 bought last time. Neither have a key slot, this new one is proud Ofer 5/8 and goes on the input shaft unlike the other which is too small.

Started installing my Blue Dots. Driver side taillight lense drilled to 7/8 with no fracturing or cracks. Need to get it to 1 inch to install. During drilling thru the many bits I stepped thru, the hole moved down .060 in under center of lower section. Unsure how close I can match on the passenger side. May have to use hole saw and make one cut at it. It has a centering bit, I can pre drill to set alignment before hole saw starts cutting.