2016 Ram 2500 with 6.4 hemi and 4.1 towing 12K

Road Phantom wrote:
I've been towing a Cougar 1/2 ton tow-able 5th wheel with a 2014 Ram 2500 and the 5.7 Hemi. The trailer loaded is around 8500 lbs. We travel all winter and put in about 10 thousand towing miles on it yearly. Right now the truck has 60,000 on the Od.
I would like to see at least 150,000 on the truck before trading it in for new. Is this too optimistic with proper maintenance? The truck so far has performed well with no issues. It's the longevity I'm concerned with.