I have a 2018 2500 Mega Cab…
I have a 2018 2500 Mega Cab 6.4L. I have the dreaded tick. I noticed it 6 months after i bought it in March 2021, 4 years ago. I change oil more than regular and have only put 27,000 miles on it (bought it with 66,000, 93,000 on it now). I just went through a heater core scare, but i took it to a heater and radiator place. They flushed it and PRESTO....Heat is awesome again. I have spoke to alot of people about the Tick and the consensus is keep an watch on it to listen for changes but basically keep good maintenance and dont abuse it. I havent and so far so good. Tick hasnt changed in 4 years. Body is great, truck runs great and plan on keeping it for years. One other thing. The indoor handle cable snapped. Ram wanted $183, i got the part on Amazon for $13. Works perfect. LOVE my truck!!