I have a 99 dually 4x4 and finally gettin tires. Currently have 235/85/16s planning on gettin 285/75/16s. I figured ill 2" wheel spacers in rear but will I need a leveling kit so they don't rub up front? I'd prefer not to get a leveling kit but if I need to so they'll fit I will

 

Typically 285's fit without any suspension changes.

Just remember this upgrade will reduce your MPG's by about 5 MPG. You going to increase rolling resistance, rotational mass, and wind drag.

 

I used to run 285/70's with not mods and dad no rubbing at all now im leveled with 295/70's no rubbing.

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After posting that i realized it has been forever since i updated my avatar. I will try to get some new pics up soon.

 

I put 285's on my dually along with 2'' spacers out back and had no interference problems up front. I ended up putting on a 3'' 2'' lift just to get some space in the fender well.

 

5 is a little high. 2-3 ,if that, going from 235's to 285's.

 

That's 3'' coils with long arms up front and 2'' add-a-leaf out back.

 

Not really... I lose 2-3 just from 235's (62 pounds per tire) to 265 (85 pounds per tire)...

Same principal...



Lower the rational mass (weight) the better the MPG's...

 

I haven't lost any from 265's to 295's but I'm sure you would see anywhere from 2-5 jumping from 235's

 

I'm running 285/75/16's on my stock suspension('02 sport), and have only slight rubbing on full lock - both directions. Not sure if it makes a difference in brand. I've got BF A/T KO's. Hope that helps for anyone. Also, if you go with a taller tire, but not as wide, your rolling resistance won't change much but you will go farther on the same amount of rotations. Therefore BETTER fuel economy. Unfortunately, you will only notice this on highway. Extra weight, and moving a larger diameter will give you WORSE economy in city driving. But realistically, who cares? Fill your wheel wells, and you'll be happier.

 

im running a 285/75/16 pro comp extreme all terrain and have no rubbing issue.. i get 17-18mpg on a regular basis with 65 psi in the tires