My ax5 has been acting up 5 gear has no power and hard to shift at time . I have a 89 wrangler thathas a 4.2 and it has a ax15 was thing should swop but not sure what it would in tell. can I switch bell housing and transfer case ? Are the shafts diffrent ? Is one transmission better then other ? I went online saw Dakota bellhousing and shaft chande and a mix bagon witch was a better transmission so if someone out their can let me know please. Thanks .