Good questions on your post, here are my recommendations;
engine oil: swepco 306 either 10w30 or 15w40..... If your winters are rated as somewhat severe with the ambient temperatures consistently below freezing, I'd go with the 10w30 unless it will be stored for the winter, then I'd go with the 15/w40. Note that this oil is a much higher detergent oil than what you will find off the shelf at the auto parts store. It is purposely designed that way to keep the engine clean. If there is a high amount of varnish / sludge in the engine it will go to work on cleaning it out and if this is the case, your oil consumption May go up. If this does not occur, you will probably be able to achieve 5,000 mile drain intervals. If it does occur, you should change the oil more frequently until the excessive consumption subsides, then gradually work up to the higher drain interval.
Transmission oil: swepco 714-20 atf
gear oil: swepco 210-80w140 for both diffs
also recommend swepco 101 moly grease for all grease applications including wheel bearings. Note: when greasing wheel bearings always make sure that the old grease is completely cleaned out of the bearings, races and any cavities which are accessible. You have no idea of what the po used for grease and quite a few greases are incompatible with each other. On greaseable fittings, the only way to purge them is to grease more frequently for the first 2 or 3 applications.
All of these products are available at the purchase page at ihon. There are other on-line stores who handle swepco products, but knowing Jeff and the operation at ihon, I can tell you that his prices are quite competitive, and you will always get good service from him. I cannot say who in your area handles swepco lubricants. (your support of ihon is appreciated)
