Yeap. GM, Nissan, Ford and Dodge trucks are not on the high reliability scale, per Consumer Reports. Toyota is the only one that rates positively.
Over the winter I read forums on Ford, RAM, and GM plus RV forums looking for the best solution for a one ton diesel RV tug. They all have issue and they all have histories that make you want to find another solution that doesn't exist. The Powerstroke, still can't get it right. GM's recent lost of focus to quality, and RAM with little engineering. GM had the Alison going for it and the Duramax has a reasonable reputation but not the trucks. RAM has the Cummins and the Aisin which looks to be bullet proof.
I'm just going by what I read over the last year on Internet forums, be it right or wrong, you do get a sense of what is going on with each brand. I wish I could get access to the warranty claims from each manufacture to know what is really going on and how many issues are related to folks modifying their powertrain but this info isn't available to us. In the end I choose the RAM 3500 Cummins solution. No real issues since the "death wobble" was fixed beginning with MY13.
The bottom line, regardless of the brand, they all use supplier parts and are all price competitive. Looking over this thread, all most all issues were related to parts from the supplier network. Consumer Reports is a joke, I've seen more mis-information from them, they have to be on the take or there are blind as a bat.
I could list every vehicle I bought beginning with my first new vehicle purchase in 1972, each one (except for one) had issues, for example, 1989 Ford Taurus SHO, missing bearing in the power steering pump. 2004 GMC Yukon XL, lemon lawed, to my 2003 Tahoe which I retired at 200,000 miles with nothing more than normal maintenance. It is a duck shoot to problems with any brand you buy. Go to any brand forum, take Lexus for example, read the issues, they all have them.
Selecting a new vehicle is like selecting the politician you are going to vote for, the lesser of the evils is the best you can do.