Its not just the vehicle design and component packaging. Dodge group products, for at least the last 35 years now, use worse engines and transmissions than GM and usually ford. The comically terrible 4 speed autos in the 90s really hurt reputation but dodge's still have more of those issues than most. The poor packaging and pita to work on is only brought to light given the fact the components fail faster. Not like fords are a cakewalk either with having to remove the cab to work on 6.0s and stuff like that, but they usually last an expected life cycle before that's needed. GM just works and are easy to repair when they do have issues and yes, their 4l80 was terrible, almost as bad as the dodge transmissions of similar years. At least the 4l60 would just wear out and burn out clutch packs where the dodge would blow apart snap rings and have shit half disassemble itself. All 3 have there drawbacks but dodge has way more. They wouldn't even be a truck contender if it wasn't for the phenomenal cummins, that dodge had nothing whatsoever to do with besides getting a contract to use it. The rest of the trucks are disposable though IMO. There is a reason you see exponentially less dodges than fords and chevys on job sites and as commercial vehicles. Chargers and challenegers are another great example. GM fully redesigned and recreated the camaro. Ford did the same with the mustang. Dodge looked at that and said screw it, lets use 90s mercedes chassis for the dodge stuff, that's way easier than designing our own chassis. Its a 90s german chassis competing against actual new classics designs meant to be sports cars. The challenger did look phenomenal by comparison though. Yet muscle era dodge had some of the greatest cars ever made and were generally pretty reliable. They did some unique things, some good and some just odd. Like the ignition circuits are kind of a pain compared to especially GM, but the proper K member always reminded me of 90s japanese cars. Such a better design than what ford and GM were doing at the same time IMO. They bad really solid engine and transmissions back then too and were pretty easy to work on. Shame they didn't keep up with those traditions in modern times but you're right in the fact every manufacturer has these struggles with all the BS mandaded to be in every new terrible vehicle made these days, its not exclusive to stellantis but they just seem to handle it a bit worse than most companies. Still are easy compared to like BMW and audi, but definitely harder than ford and GM.