My current size is 265/70R/17
is going to 285/70R/17 to big of a jump. I can get a real good price on them so now i am curiuos if this is a good idea or not

Thank You again

 

I think you should be able to go to that size with no problems. You could potentially have a slight rub in certain instances but i doubt it and your truck will look better with those than the factory small tires. Remember your speedo will be off just a bit with those tires, but not much.

 

got them on megacab no clearance problems ride better an look better 4wd of course

 

When yourspeed reads60mph you'll actually be going 62.1mph (a 3.5% difference)

 

285's won't be a problem. I am running them on mine. You can get an idea of what they look like in my pic gallery. I haven't had them rub once. If the speedo is off, it's only by a little, I haven't noticed a big difference.

 

What kind of offset are you using?

 

The rule of thumb is you don't have to recalibrate the speedo unless you go above 10% of the original tire size. The stock tires have a diameter of around 31.6, a 285 70 R17 is about 32.7 in diameter. That is about a 1.1 inch increase so you should be fine. As others have said, you speed might read a tad slow, but that is about it.

 

So ifI went from a 245 to a 285 I WOULD have to recalibrate ??

 

Are you sure you can put tires that size on a tricycle? [sm=lildevil.gif]

 

Mayfair,

Just use this little calculator:

http://www.procomptires.com/conversionchart.htm

to figure out the diameter of your current tire to the desired tire.


Hope that helps.