Thank you replying; I am sorry to ask so many questions. Maybe I should just email you?
Where do I get an instruction book (that probably came with the golf cart) that would explain everything?
Am thinking of buying a grease gun. I don't know what is in the differential but read on another site that it depends on the manufacturer.
Now wheel bearings are another question

The car makes noise when going down the street, no screetching or anything like that but noise. Should I be concerned?
I don't do my trailer bearings but grew up on a farm in KS so understand some things
