[undertaker72]

are you talking about the seals to the transfer case adapter , best and safest way is remove case completely out of road , then unbolt marriage coupler or adapter housing replace seals and gaskets , lots safer and not as wobbly like some other comments also , if auto trans some have 2 seals back to back , then coupler sleeve then one seal , unless your just talking output seals on drive shafts , then its just pull yokes and seals , but you can get a complete seal gasket set for around 30 and just freshen it all up good as new and purrrrdddddiiiiiieeeeeee lol