Well, I am attempting to breath some life back into a 94 XJ. I bought it recently with 126,000 miles. It runs and drives great but there are a couple issues. I, of course, changed all fluids, put on new tires, checked plugs/wires/cap, changed all hoses, new air filter, new heater control valve, new fan clutch, new fuel filter, cleaned carb, oiled all hinges locks, etc. The two problems I need to look at are the engine sounds loud when warmed up like clacking lifters. It sounds tight and quiet when cold. Normal?? Can the valves be adjusted on the 2.5? Thicker oil? The other problem was when cruising a dirt road in four wheel high in second gear I heard and felt a hard "kunk" "kunk" sound from the trans case?? I'm most concerned with the first problem right now as I can go without four wheel for a while. I want to make this Jeep my daily so I want it in good working order. Thanks for any help. D.