I got the call I was waiting for this morning, the dealer letting me know that the Jeep was ready. I got a lift over there and picked it up. Turns out that they replaced all 12 lifters, reground the valves, and installed new valve seals. It’s running well now, no ticking noises to be heard. The only bummer is that they washed it. I’d worked for years to get that patina on the finish and now it’s all nice and shiny, with a coat of wax even! It is good to have it back, clean and shiny or not.