Take this however you will...they are all overpriced shitboxes anymore...buy the good warranty and plan on unloading it when it's up.
They look alot nicer inside, but they cut costs other places.
I've worked on them all for over 20yrs, but I don't see alot of them until they are out of warranty so cant give you much on "brand new"...but can tell you what I see 3-5yrs down the road.
Ford got their ball joints figured out on 3/4 and 1 ton trucks, the steering linkage still falls apart.
6.7l/6r140 was very solid combo diesel wise, though have seen some lifter/cam failures, usually on tuned or neglected trucks.
Most emmissions system problems are on trucks that sit alot, do short trips, extended idle times and don't get worked. The newer GM joint venture 10 spd trans is questionable. Issues with bushing in a clutch drum slipping and cutting off fluid flow...most being caught under warranty and have been redesigned but I don't recall what year that took place...still relatively unproven, but it is a big stout looking hunk of transmission.
Ford cut corners on bearings in rear axles, like Chinese and Korean bearings...I rebuild more ford differentials than all other brands combined. Many under 100k miles. I also replace more AC compressors on Ford trucks than anything else...and yes, the newer ones have been hard to get or backordered. 7.3l gas motor still unproven for longevity but has had some big issues, see if they get that sorted out and make them last. More issues with electrical connectors and corrosion on newer ford's than the others.
GM...lots of Chinese parts from them these days. go through alot of hvac actuators in particular, though not a deal breaker type of thing. They didn't skimp on the 3/4 and 1 ton trucks as much as the 1/2 ton. If someone gave me a 1/2ton GM I'd sell it to first person came along wanting it...1/2 gm quality went way down from '07 on.
The 6.0/6.2 in 3/4ton truck form with 6l90 I haven't seen near as many issues with lifters and transmission failures that have plagued the aluminum block 5.3/6.2l engines and 6l80 transmission. time will tell which path the 6.6l/10L90 follows.
New rumor is the new 6.2l aluminum block engines in suburbans and escalade are eating main bearings and breaking crankshaft, hoping those types of issues don't migrate to the 6.6L
Be leary of GM if you Do have warranty issues, things are still hitting backorder alot, especially big things like engines and transmissions. They are also one if the worst for discontinuing parts for vehicles over 7-8 years old.
RAM/Fiat/Chrysler/stellantis...what ever the hell you want to call them...they are confused. Things have not been good there for awhile. Quality has suffered. The 6.4l hasn't been great long term. If I remember correctly it's one of Jasper's biggest sellers for reman engines. See some transmission issues, mostly in the diesels. The cummins is not without its heartaches...cp4 disasters, grid heater studs getting sucked in and wiping out engines, vgt turbo failures.
RAm would be last on my list for alot of reasons. I've got a 2011 Ram 3500 diesel and it's the last Ram and newest diesel I'll ever own.
The very long of it short... If I were looking for a newer truck I'd be looking for a low miles 6.2l/6spd F-250...by far the most solid/long term reliable option I've seen for a 3/4ton truck. I'd pay a premium for one of those vs new anything these days...maybe I'm just getting old, grumpy and senile but the new stuff just does nothing for me. To much techy BS and not enough quality on the important stuff...and I just think they are all ugly right now especially for the prices... $80-100k for a pickup truck is just ridiculous. Spend half that for a good used one, then $10-15k on a decent run around car and use the truck when you need a truck and don't use it up just getting from A to B would be my suggestion, no truck is cheap to fix when it's broke or used up anymore.
Good luck on your search...oh...and if your looking used...especially if its white...make sure you check engine hours. Have seen few guys get burned unknowingly buying used fleet trucks under 100k miles but 2-300k worth of idle time on them, if your not well versed in what to watch for, pay for an inspection at reputable independent shop.
