I have a 2019 1500 Laramie and still love it. The problem is that my wife is tired of our smallish RV and dragged me to the RV show. She keeps leaning toward 6500 pound trailers and ours is at the very limit already even with an equalizing hitch. I decided that instead of trying to find an identical 2019 Laramie with a 3.92 Axle ratio I would consider moving up to a 2019 2500 Laramie. I found one but the neighbor (huge truck guy but mostly ford) said that the 6.4 L is a dog as far as acceleration. I'm not a lead foot but what I was concerned about is this lifter thing I keep hearing about. Something about roller lifters seizing and burning up the lobe of the camshaft. Anyone who has any experience with the 6.4...how is the power? Is this lifter issue overblown or inevitable? I only have 44K miles but I'm wondering if I'm headed for trouble and maybe move to something else entirely.