Since it's 2wd, and assuming you're asking about front spindles, it's "finger-tight." Few guidelines if you haven't done this before:
- Torque down on spindle nut before backing off and pinning (eliminates possible play)
- If the castle nut lines up w/ the cotter pin hole at finger-tight and any play is felt, go to the next hole (even though it may seem more than finger-tight)
- Be sure to pack the grease into the bearing cage until it flows out the other end
- Exclude all contaminants (dirt, etc.)
Not a comprehensive list -- maybe watch a few videos?
On the grease, that's like asking which is the best gun cleaner/lube in a firearms forum; get ready for lots of answers. All recommendations here are good, I think. Personally, I selected Mystik No. 2 years ago and have never had a problem on any vehicle.