hello,the following is the procedure from the manual. there are no special tools required and as for the axle nut its hard to say what size it is, i have a set that i use that goes from 30-36mm and it covers pretty much all axle nuts.
Exploded view of a typical halfshaft mounting-Except Mazda 3
Install plug tool 49 G030 455 into the transaxle after removing the halfshaft, to keep the differential side gear in position. If the gear becomes positioned incorrectly, the differential may have to be removed to realign the gear.
To install:
If equipped, push the halfshaft into the intermediate shaft.
yeah just disregard the 626 and youll have to conact a dealer about the oil as my information doesnt have that.
ASE Certified Technician
10+years experience in GM and chrysler