I just purchased the drivers side axle assembly. Will I have to drain the tranny fluid to replace it? I had printed out the CV Boot installation instructions, and my thinking would be yes I would need to drain it. I just wanted to ask you guys just to confirm so I dont have my garage floor full of tranny fluid. Thanks.

Have you read Corbin's FAQ yet?

http://www.2gnt.com/www/corbin/axle.html

The answer is no, you do not have to drain it.

depending on how much or little you have your car jacked up will determine how much tranny fluid drips out when the axle is removed.

If the car is jacked up using a normal floor jack, you really will only drip a small amount of fluid out (just about enough for paper towels, perhaps).

mine leaked a lot more than a small puddle when i popped the driver's axle out. this was with the car jacked up a good 18" or so from the center member also. of course the majority of the fluid was still inside but more than a little puddle came out. you don't wanna hafta buy new fluid from the dealer anyways so just drain it a little first so you can reuse the fluid.

just drain it. it makes life simple

drain it. it will come out.