[70K10Hunter]

4x4 box pitman arm is clocked differently than a 2wd box. not interchangeable....unless you want to go with cross over steering. to replace the seal in the box that is leaking, you will need a pair of snapring pliers and a small seal puller although I do it slightly differently with a drill and sheet metal screws. disconnect the rag joint remove the snapring remove the dirt seal and use small seal puller to get old seal out then install new seal.

I bought a seal kit from Napa for like $20