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Dually Tire Sizing

kennyw

kennyw

@squarebody.chop.shop on IG
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Need input on tires... my new dually currently has 215/85R16's on it. I need something taller and I know 235's will fit, next size up from there is a 255/85R16. Anyone know if they will fit on a dually without rubbing? Local tire shop is willing to test fit and check for me today as well. But, once I do that I am committed to buy 6 tires. The old ones have dry rot and they won't re-mount them.
 
A 255 is wider I thing they will fit without a load but need a 1" spacer to really haul loads

That's going from memory from a long time ago but pretty sure you will need a spacer before you put a load on em
 
It is wider. 10" compared to 9.25" nominal of the 235/85. Technically, I would be taking only 3/4" out of the space between the tires. I might get away with only a 1/2" spacer if I need one. I need to look at the rear studs and see how much thread I have left or if spacers mean new studs...
 
Like I said pretty sure you can drive around on 255s just can't load it down so the tires are bulging.

I looked at this a while back because I have 4.56s with a 465 ( or will when I get it put together) 315s require a 2" spacer that's what I want to run
 
What kind of tires are the 255/85/16s?

There is only a few companys that make them.
Mine are Toyo m55s.
 
I'm going to put 265/75's on mine....hopefully without issue!
they are wide 265's too. Good year duratrac, seem to be wider than any other 265's I've run across.
 
max 02 said:
What kind of tires are the 255/85/16s?

There is only a few companys that make them.
Mine are Toyo m55s.
Click to expand...

BFG MT's are available from discount tire and Les Schwab has a couple different tires available in that size. Only problem is the Les Schwab website doesn't give me any sizing info.

Are you running yours on a dually?
 
kennyw said:
BFG MT's are available from discount tire and Les Schwab has a couple different tires available in that size. Only problem is the Les Schwab website doesn't give me any sizing info.

Are you running yours on a dually?
Click to expand...

No sorry SRW.
 
Another option may be going to a 19.5 steel wheel... 225/70R19.5 is available in an MT tire at Les Schwab. Only issue is $369 ea for the tires compared to $180-220 for the 16's.
 
255/85/16 on c&c 14ff rear no weight on just empty. cooper s/t tires

and as for spacer need hub centric spacer to center outer drw as the std spacers dont center the outer rim . drw dosnt center off lugs like normal rims.

265 fit with 2" spacers perfect like factory i have done this before for a guy. and here is the spacers he used. http://www.wheeladapter.com/dually_spacers.php also used his spacers on a f350 and f550 trucks i did .

255 85 16 001.jpg

255 85 16 002.jpg

255 85 16 003.jpg

255 85 16 004.jpg
 
I should follow up on this, I purchased the LT255/85R16 tires. They fit ok without a spacer, but fully loaded they do rub and will require a spacer to avoid damage.
 
I should have jumped back in too Kenny...I ended up with a 1.5" spacer on the aluminum Weld's....

here is what I ended up with:

HPIM3781800x598.jpg


http://coloradok5.com/forums/showthread.php?t=289528&highlight=BART&page=12
 
kennyw said:
Did you go with Aluminum or Steel spacers?
Click to expand...
they are steel. 1.5" thick, came with all the lugnuts and studs were installed. He asked me a few questions and had them made to my order and shipped out the next day.
 
Thanks for updating this. Would it be possible to use a 1/4 spacer on the existing DRW studs to get the space needed for loaded 255/85s?

Zimmer, you are running 265/75s, correct?
 
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