There are some very valid points made above about starting with enough truck, or buying more truck than you think you will need. Like many of you, I also have some experience from which to draw, and my opinion is tuned-up as I'm again using/driving my old F350 after a few year hiatus.
I still have one of those very stout SRW diesel truck; 1996 F350 crew cab 4x4, 4.10:1, 5-speed manual. It was purchased new and has been used both hard and soft, loaded and empty, on & off highway. And before that truck a couple Dodge/Cummins rigs, and before that a few half-ton pickups (International, Ford, Dodge). While I love my old-school F350 diesel, it will carry and/or pull a substantial load, and there are few old (tractors) trucks I would rather have, I
do think the original poster's question was about
new truck shopping. Sometimes you just want/need to buy a new truck and that changes the discussion quite a bit. I was there just last year, shopping for a new pickup, and didn't want to buy a new diesel even though I'm a huge proponent of diesel, of course I still had/have my old F350.
When it comes to camper hauling something that is sometimes missed is bed length and wheelbase, which can make a big positive difference, but also offers negatives when it comes to overall length, turning radius, daily-driving. My 8' bed F350 has not only plenty of bed length, but plenty of length
froward of the rear axle. My new crew cab Tundra has a very short 5.5' bed, with very little space forward of the rear axle. In my mind this is the biggest negative for the stated application of slide-in camper hauling (not nearly the same as towing). If I was buying a pickup only/primarily to be a camper hauler, a regular cab 8' bed truck would be my #1 choice, and I did consider one in 2011. Though like most buyers I want a new truck to be a nice daily-driver too, and to do everything (within reason) a pickup can do.
snip...
Compare the running gear of a a 3/4 ton (not the manufacturer's ratings) to a Tundra. The Tundra has a 10.5" rear axle, front wheel bearings the size of an F250, 14" brakes, etc.
If you are certain that your plans may change in the future, it may be smarter to buy the 3/4-ton /1-ton. But IMHO, it is completely overkill for a lightweight poppup. The guy I bought my camper from was using a 1997 F150 and had accumulated over 180K miles--and believe it or not, the pickup had not split in half... .
Agreed, looking at and understanding the specs is important. Price was
part of the reason I didn't buy a new diesel, but not the only reason, as
the bar continues to be raised in many areas of modern life, and
truck capability is one of them.
Engine: Hardly worth discussing these days... '93 Dodge/Cummins made 400 lb-ft and 160 horsepower (w/ 5-speed and 4.10:1), and nobody thought it didn't have enough juice to do some serious work. New Tundra, Ford EcoBoost (or choose another) gasoline engines make amazing torque (400+) and much more horsepower than my old-school '93 Cummins example. [I'm not arguing against diesel, I still love them, though I like the older ones with less emissions add-ons
much more.]
Ring gear: Yep, the new Tundra has a slightly larger ring gear than my '96 F350.
Brakes: 07+ Tundra brakes are far superior to the brakes on my F350.
Suspension: This is likely the area where lighter-duty new trucks need the most support, but also the area that is most easily upgraded. But better-riding suspensions that might need enhancements for heavy hauling are not only a "half-ton" thing... Going from my super stout (and stiff) '93 Dodge/Cummins to a '95 Dodge/Cummins the rear suspension capability (and empty ride quality) were night-and-day different, and either an improvement or not depending on your perspective.
Frame: Frame strength is sometimes mentioned, but other than the most severe service, I'm not really concerned about the frame on a newer "half-ton" truck not handling a maximum load for thousands of miles.
So unless my '93 & '95 Cummins or '96 F350 were grossly incapable when new/stock, I think a modern 150-series truck can do lots of work. Maybe not
as much, or
the same, but still lots. As always, the driver/ owner has much to do with the performance and longevity of the chosen platform.
Cheers my fellow truck enthusiasts.
Redline