Thanks Bill
Shift unit rehab was a success, rear end now shifts as it should.
I'll be ordering some small parts off eBay for the electric shifter unit to make it last the long haul.
Now I need to figure out what will be the best fluids for the old 261 and the gearboxes and rear end. I'm thinking that motor wants some good cushion in the oil pan!
Front end looks sound, might just be alignment and tires.
I'm looking forward to seeing whatever discussion thread links you can provide.