Now complete.
Adjusted one ear plate with 0.060” to 0.085” shims to allow hand insertion of pins. Several more tacking and installing checks. Trim sides and fabricate receiver hitch parts.
Welded. Pins fit but are tight. Fitment might loosen some with use. This is where I really appreciate fabrication manufacturers skill of making large weldments. Invest in jigs, weld procedures, go, no-go gauges to make repeatable parts.
Now to paint.