Replacing Rear seal on 4 speed manual g/box

Matt,
Remove prop shaft & allow to drain (preferably reverse order if g/box has a drain plug fitted). Don't forget to mark prop shaft
& diff flange before unbolting, so can assemble in same position.
Remove seal. It's difficult to lever out because of protruding output shaft. Sometimes driving it further in at one point, will make it pop out diagonally opposite. A method I find works is to drill a small hole(s) in face of seal (it is metal cased under rubber), screw in a self tapping screw, and yank or lever out with vice grips on screw. 
I've had to completely mangle some seals that have been loctited in. Just be carefull to avoid gouging hosing. Better to work at top of seal than the bottom if think you might scratch housing.
Coat od of seal with oil (or loctite if housing surface doesn't look good)
Drive in squarely using a pipe socket or similar, slightly smaller in od than seal (a good place to search is bunnings plumbing section - plenty of pvc pipe sockets/joiners /fittings to choose from, they're cheap & plastic won't damage anything)
 
Cheers, Gregg
 

Thanks guys,
 
I appreciate the help.  I was actually at a dude place yesterday and he happened to have a gearbox lying there and he showed me how to remove it using the special tool.
 
Piece of cake.
 
Gdub, I'll look around to see what the tool costs and let you know.
 
Cheers again,
 
Matt