This was posted by Vigs07R in another thread and may be of help to you.

http://www.rimsntires.com/rt_specs.jsp

 

This is a good tire size calculator.

http://www.miata.net/garage/tirecalc.html

 

2nd one is more user friendly. Thanks both of you.
Can the tranny or speedo somehow be adjusted?

 

Very nice find... thanks alot i've been rackin my brain tryin to figure out the difference in the stock to the new tire i'm going to put for while

 

Both helped a lot. Thanks

 

And some others.

http://www.1010tires.com/TireSizeCalculator.asp

http://www.discounttire.com/dtcs/infoTireMath.dos

 

Here's a really good one that I have been using as well.

http://www.ajdesigner.com/fl_tire/tire.php

 

how do u get speedo changed?

 

Attn MOD
I was just on that Rims N Tires site 2 days ago and went there today and the page was down/missing. So then I went to their home page to find their link to the Comparer and followed it.
I guess the new URL is:
http://www.rimsntires.com/specs.jsp

and not:
(Broken) http://www.rimsntires.com/rt_specs.jsp

 

Is there a way to adjust the speedometer?
I have 35x12,5 R17 on my 2001 F150, I think this truck came with 295x10 R17 from the factory.

 

It requires a change in the PCM using a programmer or at the dealer. The dealers sometimes do not have the software for the larger tire sizes. It's a good time to invest in a programmer which you probably need anyway with the taller tires.

 

Thanks for the reseach sites, I ve been trying to decided what would be best with a 6" lift and stock rims.

 

Hi, i own a 2010 F150 xl double cab. and i dont really want to get involve into change or lift it but i do want to by a set of bf goodrich mud terrain II for it.

The question i have is withouth changing a thing of my truck what would be the largest diameter i can make fit on to it without haveing the risk of damage the truck. i tried some 305 i think but they say i was going to hit the front wheels everytime i turn.

I dont have to many experience and i have no way to know how the tire look because i have to pay the wheels before they can mount it on the truck.

thank you

 

Does anyone know the largest tire i can put on the stock 18" wheel? tire size now is 265/60/18.

Thanks.

 

I need help installing original wheels f-150 2010 to 1998, from 6 to 5 lug, what would be the best recommendation