I think Ram trucks had transmission issues not that long ago, but I believe they addressed that. Someone shared with me that their Ram truck was on it's 3rd transmission @ 55,000 mile. Their biggest work load for the truck was hauling a cattle trailer to the livestock yard a few times a year.
I do think Ram addressed this issue by going to Aisin transmissions more recently. Don't quote me on any of this, but I do think Chrysler addressed this issue. Aisin has a much better reputation, & I believe they have connections with Toyota.
"Aisin: The Aisin 6-speed automatic is one of the transmissions available with Ram's 6.7L Cummins turbo-diesel engine. This engine produces up to 400 hp and 1,000 lb-ft of clean-diesel torque. With the Aisin transmission, it can tow 31,000 pounds."
I just saw an article recently that listed the newer RAM trucks as being the most reliable (even topping the Tundra). I can't find the particular article, but this one reflects the same basic points.
https://pickuptrucktalk.com/2021/11/...undra-tumbles/
GM's quality has really gone down in the past 20+ years. My Dad & brother buy all GM products. I drive my parents around quite a bit in their vehicles. My money would go elsewhere. The older vintage Chevy trucks were tough & dependable.