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Discussion Starter #1 (Edited)
Now this may come up from time to time, but please hear me out.

I went to order 6 new tires (from the state's distributor) slightly larger and they only have 4 and they can't locate two more right now.
Now this got me to thinking ... Hmmm .... (not always comming up with a good idea, I know!)
Now why couldn't I use this to my advantage and slightly reduce drag by only having 4 tires on the ground while daily driving unloaded (about 85% of the time) and then once loaded the sidewall deflection of the (again slightly) larger tires will allow the smaller diameter tire to also carry the load.

I assume we all have seen older rigs (both big semi and med duty trucks vans) with mismatched tires mounted on the drive axle. We've also seen 'duallys' run around with single tires in the rear. (silly looking to me, but one never knows the reason others do the things they do)

Anyway has anyone tried this (pros / cons) and really what's the worst that could happen as I will not be loading my F-450 with any bigger load than my 1/2 ton GMC has been hauling for the last 3 years. (basicly under #1000 in the bed OR towing #7000 off the bumper)

Hope to hear some opinions and examples if you have them.
 

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Discussion Starter #2
40 peaks and no reply?

Anyone have an opinion??
 

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You know.. The is a good idea..

But here's my take on it..and i may be completely wrong.. its just my .02 for what its worth..

I would assume you would put the larger tires on the outside, to prevent it from looking silly.. Kind of hide the smaller tire on the inside...

That being said.. I would that that tire, not having any pressure on it, might wobble around? or Un-evenly turn??

Or even, having to essentially just spin that extra weight in the air.. as opposed to it being planted on the ground helping the rest of it.. I could see it actually possibly hurting you? You know what i mean? Its like its having to spin that tire in the air...instead of rolling it on the ground...

IDK..thats my thoughts on it.. I figured i'd chime in since nobody else has..


Why don't you just put the 4 new ones on the back, and get an old school muscle car rake going on... haha Just don't use 4x4.
 

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My take on it would be that its a bad idea. Reason for that is this, If you put enough weight on the truck to squat the tire enough to have all four hit the groung, then they are probably bulging enough now to be rubbing each other which will cause over heating issues which turns to blow outs (and rubbing tires is a DOT no no.) If its not a 4x4 then I would do the 4 on the back untill I could replace the front.
 

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Def not a good idea to put two diff sizes next to each other on a dually. One of those tires will let go. Many moons of tire experience here...
 
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