I saw this online
http://www.endwrench.com/current/Current6/03/WhBearRep.pdf
6.5 x 6.5 inches, both front and rear.
I have that problem right now. What I did was ascertain through hearing and feel that it was one of the front bearings. As a general rule--you never replace just one bearing. Either the two front or the two rear. Short of actually removing each bearing, this is your only option--unless you want to pay the bucks for a crackerjack mechanic; and if you do take bearings out--you never replace with the same old bearing--always new. Bad wheel bearings usually make noise. Try to listed to where the noise comes from.
the only thing i can think of would be a puller to remove the inner race from the stub axle, they tend to stick together alot!! AT
That depends on what you mean by easy and on what vehicle (there are several types of wheel bearings and assemblies). For someone with the correct tools, preferably with a repair manual, and a little mechanical experience, it is pretty easy for most vehicles. For someone who can't change a spark plug or a tire, probably not so much.
The 2003 Subaru thermostat is located inside of the thermostat housing, on the front of the engine. The thermostat will be near the bottom of the engine.
remove old pads and replace then with new ones
The 2013 Subaru Legacy has 54.5 in. of front hip room.
The 2005 Subaru Legacy has 54.4 in. of front shoulder room.
The 2005 Subaru Legacy has 39.5 in. of front head room.
The 2013 Subaru Legacy has 43.0 in. of front leg room.
The 2002 Subaru Legacy has 38.9 in. of front head room.
The 2011 Subaru Legacy has 43.0 in. of front leg room.
The 2014 Subaru Legacy has 54.5 in. of front hip room.
The 2012 Subaru Legacy has 43.0 in. of front leg room.
The 2006 Subaru Legacy has 54.4 in. of front shoulder room.
The 2009 Subaru Legacy has 54.2 in. of front shoulder room.
The 2011 Subaru Legacy has 40.3 in. of front head room.