That depends on what they are doing. Open your manual and look up the maintenance schedule. That will tell you everything that is due.
They’re probably wanting to replace the oil and oil filter, air filter, and maybe the cabin air filter. That shouldn’t cost anywhere close to what you were quoted.
If they are wanting to service the diffs, transfer case, or transmission, none of that is indicated. And the coolant doesn’t need to be changed either.
Familiarize yourself with your manual so you aren’t a “fool and his money” when you speak to them.
And if you are asking people for help, it’s considered bad form to not provide them with the basic information that they need to help you.
You’re the one asking for help. Do your part if you want that help.