Tires

[DavesDodge]

Will 35x12.5s fit on my stock 20 inch rims?

 

[MADDOG]

It's a bit of a stretch on a 20 x 8 wheel. If yours are 20x9 you should be fine.

What 20" wheel do you have?

 

[DavesDodge]

Dealer said 20x9. I don't have a wheel caliper.

 

[usaf2006]

35/12.5s fit fine on 20x9s or 20x8s. I've seen them on dually rims, and those are around 6" aren't they?? With a skinnier rim, you just get a bit more sidewall bulge.

 

[muddy12]

I have 35x12.50’s on my stock chrome clad 20’s. Tires fit on the rims just fine, but even with the lift, a minimum of a .25” spacer is needed to keep the tire from rubbing on the knuckle.

This is the tire to knuckle clearance WITH a 1/4” spacer installed.



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[613RAMSPORT]

I have 35x12.50’s on my stock chrome clad 20’s. Tires fit on the rims just fine, but even with the lift, a minimum of a .25” spacer is needed to keep the tire from rubbing on the knuckle.

This is the tire to knuckle clearance WITH a 1/4” spacer installed.



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Do you have anymore pictures?? I've been looking for someone running 35x12.5 on the stock chrome clads, and a .25 spacer!

 

[muddy12]

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[muddy12]

I was still getting a little bit of rubbing on the sway bar links at full lock though.



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[muddy12]

I have sense added flares, and switched to 2” spacers.

Lots more clearance, and no more rubbing on the sway bar links.


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[corneileous]

I’m just curious but with such a large spacer behind your wheels, doesn’t that reduce off-roading ability and even towing/payload capacities?

I guess the technology of of wheel spacers could be more advanced in this day of age but I’ve always read that wheel spacers are just for looks only. I dunno, correct me if I’m wrong.


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[muddy12]

Only negative for off road would be that your track width is wider, which makes it a little tougher to negotiate the tighter trails.

As far as towing, it’s a case of “you get what you pay for.” I would not trust cheap spacers for towing, but have no reservations, as long as reputable high quality spacers are used.
Also have to remember to maintain the spacers. All that really means though, is to inspect and re-torque them regularly. I check mine when I rotate the tires at every oil change.


And just because wheel bearing life usually comes up next; it’s been proven many times over, spacers have the same effect on bearings as switching to wheels with less backspacing.




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[corneileous]

Hmm. I wouldn’t wanna buy cheap anyway when it came to stuff like that anyways when it has to do with keeping my wheels on the truck but, I was just always under the impression that wheel spacers never were the correct answer to clearing wide tires because back when I was considering spacers on an old 98 halfton I once had, I figured dealing with a slight amount of lower suspension arm rub at full lock with a little bit of front axle articulation was much safer than having a chunk of metal pinched between my wheels and hubs.

I dunno, just reflecting off what I’ve heard from years ago.

As far as the added stress on wheel bearings being the same whether it be backspaced wheels or spacers, I’ve never heard that but it makes sense.


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[muddy12]

I too was at one time against the use of spacers. Then I realized that just about every dually truck on the road has factory “spacers” on the front axle. While the dually spacers are somewhat different than what we’re talking about here, it’s the same basic idea.


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[corneileous]

I too was at one time against the use of spacers. Then I realized that just about every dually truck on the road has factory “spacers” on the front axle. While the dually spacers are somewhat different than what we’re talking about here, it’s the same basic idea.


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Yeah but for one, that’s factory, two, it’s on the front, not the back and three, all that is, is a bud-wheel adapter, not necessarily a spacer. The only reason it’s up there is so that you can mount a dually wheel on the front so that all your wheels match.

If you feel confident in a spacer to clear wide tires, that’s all that matters. I’m just not so sure I’d trust them. In my own personal opinion I would think a deeper offset wheel would be the safer bet but that’s just me.


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