I am helping a friend with his jeep. It is a cherokee4x4 with the 4.7L non high output motor. It is in need of a new head for the passenger side. My biggest issue is from the looks of it that it will be awfully difficult to pull and replace with the motor in the truck. Is it possible to do it in the vehicle? any tips or tricks to this job? Sorry if there is already a thread on this subject, i did a search and didnt come up with anything. If there is already a thread could you point me in the right direction.

 

I found a few doing a Google search under "removing heads on wj 4.7". Lots of things you need to read before tackling the job.
Here's an example of one of them. >->http://jeepgarage.org/showthread.php?t=30612&page=2