Its been said time and time before, your alignment settings, tire pressures, and tire brands/types will dictate the rate of wear, not necessarily the sizes.


In theory, if all other things are the same (tire brand, type, pressure, alignment, etc) the tires should theoretically wear the same, given the same miles driven.


The best thing I would do before going through buying a set of staggered 20s and tires would be to get an alignment check, and see what your specs are. Chances are good you are due for an alignment anyway. Have you done any recent suspension maintenance? For example, at 68k miles, my entire front suspension is fresh, some parts were worn and some parts were seized and unable to be adjusted to I had to replace them.

My rear suspension is fine for the most part, and I was recently able to get aligned, however, my right rear camber was not able to be adjusted into spec. Even with my low mileage, I still have a part that is worn in the rear (most likely swing arm ball joint or wishbone upper control arm), and that side still had excessive camber.


If you want maximum tread life and for the tires to wear evenly, zero out the toe in the rear! That's all you need to do, the combo of the aggressive negative camber and excessive toe scrub the hell out of the inner edges (and which is why the myth that "staggered wheels don't wear evenly" comes into play)

The problem is most guys get aligned at the dealer, and even at minimum, there is still too much toe spec'ed for the 20s. Go to a good indy shop who will align to your specs and have them zero out toe in the rear, and you'll have no wear issues.

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2018 Ram 2500 6.7L Cummins 68RFE
19k miles -Bright White/Black - Big Horn Sport - Crew Cab Short Bed
2013 X5 35D (CEO's) - Born on 5/17/2013 -
82k miles - Alpine White/Cinnamon Brown/Premium Pkg, Sport Activity/Premium Pkg and Sound/20" Style 214/Running Boards