Im trying to locate the starter for 1994 jeep grand cherokee , see if its easy to replace, and also the location of the starter relay

Starter relay is in power distribution center near battery. don't know which engine you have, but if you flollow the positive cable on the battery, it will lead you to the starter. Most are not difficult to replace, depends on how much experience you have. One tip...dont overtighten wire connections on starter the solenoid cover is plastic and can break.