On the side of the trans about half way up and in the middle, fill until some comes out.
repair manual ( available at your auto store) for around $20. Jeep wrangler 1987 through 2003 all models
To edit original question....Jeep Wrangler 2005 manual transmission
The 2002 Jeep Wrangler has a 5-speed manual.
The 2011 Jeep Wrangler has a 6-speed manual.
The 2009 Jeep Wrangler has a 6-speed manual.
The 2006 Jeep Wrangler has a 6-speed manual.
The 2014 Jeep Wrangler has a 6-speed manual.
The 2003 Jeep Wrangler has a 5-speed manual.
The 2012 Jeep Wrangler has a 6-speed manual.
The 2004 Jeep Wrangler has a 5-speed manual.
The 2005 Jeep Wrangler has a 6-speed manual.
The 2013 Jeep Wrangler has a 6-speed manual.