16" Wheels- will they fit?

It's time to get new tires, but I don't care for the stock ATs that came with my truck- a 2017 2500HD with the L5P Dmax, Ext Cab & long box. I found a few tires with better tread depth, but I'd have to mount them to 16" wheels. My stock wheels are 17 x 7.5" My questions are:

Will a 16" wheel fit on my 2017 without interference with calipers, tie rod ends or ball joints? And, does anyone have an opinion on running 285s in lieu of my stock 265s? Yes, I realize the aspect ratio may change as will the tire diameter- however, the data I'm seeing suggests there will be less than 5% additional tire height. It would appear that I've got clearance up front for the extra 2" diameter.

Of larger concern are the 16" wheels. And, will any of the aftermarket programmers (EFI Live or whatever) allow me to change the tire diameter in the PCM's code? Any comments would be appreciated. Thanks!

My guess is... the 16" wheels will fit, but I wouldn't spend any money on wheels till you know for sure.

Otherwise, it is the "offset" measurement that should be a top concern when replacing the factory wheels. Wheel offset determines where the center of the wheel (center between the beads) sits. If the offset is moved in or out from stock, the geometry changes, which changes how the truck drives and handles the road.

More generalized info can be found here:
https://www.thedieselpageforums.com/...ad.php?t=45744

Thanks for the reply. If I had question the offset, I'd ask if the wheels from my 2001 Silverado HD2500 would fit? Does anyone think the geometry of the front end or the components would've changed between the 2017 and 2001 2500HD pickups (like calipers, tie rods, etc)? If anything, I could compare measurements between the two model year wheels (that data must be available somewhere, even if comparing after market equivalents). My guess is that if the offset and the ID of the wheel are about the same, they should work.

Additional thoughts would be appreciated. Thanks again.

The only significant wheel change I've done is with Lil Red, my 1989 Chevy K1500 Duramax conversion. I went from the stock 1989 16" 6-lug aluminum wheels to 2003 factory Chevy SS 20" x 9" 6-lug sport wheels. The truck drives great with them. Had it realigned last year. It tracks straight and neutral.

Unless there's a data sheet available somewhere , you'll have to measure the wheel offset. You can do this with the tire on. Just make an outside caliper using wood to measure bead to bead width, then depth from the inner bead to the hub mating surface of the wheel.

Well, it appears that there's a max of 3/4" between my wheel and the brake caliper, so a 16" wheel is out. So my only thought is to start exploring tires that require 18" wheels or, just pick the best offering in a 17". This thread can be put to rest.

Quote:

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Originally Posted by chessy56

Well, it appears that there's a max of 3/4" between my wheel and the brake caliper, so a 16" wheel is out.

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Are you analyzing that correctly? If you reduce the diameter of the wheel by 1 inch you'll reduce the clearance by 1/2 inch...

I have winter tires mounted on Ford wheels.
They came that way,so i thought i would see if they fit.
They would rub on the brake calipers,so about 60 seconds with a flap wheel took the offending casting junk off the calipers and they are fine now.
The point of this story is you need very little room around the calipers.
The OEM aluminum wheels on this truck don't have much room to begin with.I have a couple off trucks that were stuck where a rock had got between the wheel and caliper and cracked the wheel.