LIM finally went at 200K miles...
Coolant disappearing for the last week or so. Stopped at Oreillys to get the Felpro LIM kit (talk about serious gaskets!), coolant elbows, UIM kit, oil/filter, and coolant. $165 and 5 hours is all it takes... I had valve cover gaskets so did them while they were easiily accessible. Worst part of the job? the lower front stud on the throttle body. Taking it out was easy with the thermostat housing removed, back in was impossible unless the nut is taken off the stuf, which wouldn't budge. It took a new, shorter bolt to fix. Valve covers, lifter valley, and rockers all looked great and free of sludge.