For the rear-end, any full synthetic 75w90, 75w110, or 75w140 can be used depending on driving style, weather, mods..... Most come with the LSD additive already. If you have any LSD chatter, then add 1/2 ounce shots until there is no chatter.
For the manual transmission, any GL4 75w90 manual tranny fluid can be used. Examples are Redline MT90 or Amsoil MTG.
I probably wouldn't run a 10w60 oil. Seems too thick and might rob you of some power and mpg. Stick with the recommended weight, or one weight thicker if you're in a warmer climate. I also recommend a full synthetic in all engines.
30k mile or <3yr intervals for 'ends and gearboxes. Adjust for driving style!