Hi there...... just purchased a 1998 cherokee classic. Last
Jeep was my 1964 p/up I converted to a 327 chevy in 1977.

what is the most detailed FSM for a 98 Cherokee 4.0?
What is the best source to obtain? Hard copy or PDF is fine... thanks

 

Here is the parts manual.

https://xjjeeps.com/

And a 99 FSM from here should be very close if you can't find the 98.

http://www.colorado4wheel.com/manuals/Jeep/XJ/

 

Pacific coast manuals has PDF FSMs for like 7 bucks. Get one.