Just got a call from my mechanic who replaced the rear hub seals, topped off the rear diff. and pressure cleaned the rear axle vent tube and pressure checked the seals upto 100psi. No leaks including after warming them up, so that's good.
Need to order new backing plates, emergency brake shoes and parts this spring though, they were totally rotted through and had to be removed, but parts are Ford were over 350 just for the backing plates, 45-85 depending from Rock Auto, and then another 50 for the shoes and parts.
Can't wait to pick her up and give her a good drive tonight though, been without her since Thursday evening.