I'm looking at getting some new wheels for my '15 PSD SCREW:
Noticed in another thread that the rating for the stock wheels is 3525#
The wheels I'm really interested in at rated at 3500#:
My question is, is the 25# difference REALLY that big of a problem?
I've found other wheels with 3640# & 3700# ratings, but the American racing ar910, black/machined are my preferred choice & if the 25# isn't a big deal, I'll order them when I get my taxes

 

I'll try to help out here. Each component of your suspension is going to have a weight limit, and as long as you're not exceeding any of them, you should be ok. My load range "E" tires are limited to 3195lbs each, so your example rims would work fine for me, as long as I didn't then exceed the tire weight rating. Unless you plan to haul or tow something that could exceed that 3500lb limit, or are worried about it upon resale, I say spend your money how you want to spend it!

 

I think your wheels are actually rated for 3590# each, assuming they're 18s or 20s. If you have 17s they're rated for 3195#.

Really what you're doing is putting a 7000# limit into your front and wheel axle capacities. If the spring capacity is less (up front you're probably at 4800-5200#), then no change. But if RGAWR is 7100#, you've just effectively lowered that rating to 7000#. If you're towing on an in-bed hitch or loading the truck down heavy and scale the truck, then yes it can matter because you've changed the limiting factor for the axle weight rating and you need to not exceed the wheels' ratings.

Practically, unless you overload the truck, no it doesn't matter.

See Page 89 (stamped on the page) in the attached .pdf for the wheel capacities for 2015:

Edit: If you dig enough through this file there's an entire secondary conversation about spring ratings and GAWR de-rating packages that could be had, especially if you have an F350 with 17" wheels, but again; practically, unless you go over 7000# on the rear axle, there's no difference.

 

Based on the off, the highest rated suspension component is the rear springs @ 6730#. 6730/2 is approximately 3365#....so unless I overload the truck, the 3500# wheels will be ok?


If I exceed 7000# on my rear axle, it's time to clean some crap out of my 28.5 5th wheel!!!!!!!

 

Sounds like it'll be ok.

Have you ever weighted your truck? It was eye-opening the first I weighed mine, it's pretty drastically different than the curb weight per the book, even adjusted for options.

 

it's the LOWEST-rated component OR the axle rating printed in the doorjam of the truck.

 

Tell me about it: me, truck & 3/4 tank of fuel=8800#