Hello, DJ.
Your #2 leak sounds like the rear main seal on the crankshaft if that's engine oil. Not uncommon, but best to rule out simpler leaks at the rear of the engine first, before jumping to that conclusion. Replacement of the rear main seal can be done with the engine in the vehicle using a rope-style seal (only one that seems to be any good these days is the Best Gasket brand, graphite-rope seal, "GraphTite" PN 6100). There is a Tech Tip on rear main seal replacement in the Technical section - which involves pulling the oil pan, loosening the main bearing caps to allow the crank to drop just a bit, then replacing the seal. If the drip isn't too bad, you may want to watch and let it go while monitoring.
The torque tube U-joint ball at the rear of the transmission has a cork or felt seal at the large gland nut that deteriorates over time. Again, not uncommon. The usual suppliers sell the seal kits for the torque tube ball, including a replacement for the large seal, and shim-type gaskets for the ball to transmission seal (which also set the "tension" on the ball - if not familiar with setup procedure, see the paragraph that starts toward the end of this page in the shop manual:
Universal Joint Ball Adjustment). If it's a long term seepage, and the transmission fluid level doesn't drop very quickly, you may want watch the fluid level and monitor, rather than opening up the seals.
One other thing to check. If you find the transmission is periodically low on fluid, it is worth checking to see if the rear end is actually overfilled. This happens when the seal internal to the torque tube for the propeller shaft deteriorates - it was cork, I believe - and allows transmission fluid to drain back through the torque tube into the rear end. An overfill condition can cause leaks at the axle seals, of course, which can contaminate the rear brakes. If the internal leakage is minor, you can monitor the fill levels. If it's a large internal leak, then the typical fix is to pull the front torque tube bushing, and replace with an Okie (sometimes misspelled, Oakie) bushing assembly (available from the typical suppliers) that includes a new-style seal. There are a number of threads in the forum covering that.
Hope this helps!
Doug
