There aren't any.
There are no grease fittings on the wheel of any car. The wheel bearings must be removed, cleaned, inspected, repacked, and replaced.
If steering and suspension parts are original they are probably sealed (No Fittings)
The 2004 Jeep Wrangler has four wheel drive.
The 2001 Jeep Wrangler has four wheel drive.
The 2003 Jeep Wrangler has four wheel drive.
The 2011 Jeep Wrangler has four wheel drive.
The 2014 Jeep Wrangler has four wheel drive.
The 2009 Jeep Wrangler has four wheel drive.
The 2002 Jeep Wrangler has four wheel drive.
The 2006 Jeep Wrangler has four wheel drive.
The 2012 Jeep Wrangler has four wheel drive.
The 2013 Jeep Wrangler has four wheel drive.