Looking for confirmation - working on a 2008 GMC 6.6 Duramax K2500 with disk rear disk brakes .

Need to replace a wheel stud - looks like parking brake leaves no room to install a stud.

Does the axle have to come out to replace a wheel stud? Which locknut socket do I need? OTC 1929? or other? Will the inner hub seal survive or should it be swapped out (dry now).