Tires and such

YouTube · Post by **OffroadTreks** » Wed Apr 20, 2016 10:00 am

nts007 wrote:285/75/17 is a good compromise size. But limited tires have that. But there are a few good ones. Width is a big player in losing mpg. Way more rolling resistance. The 285/70/17 and the 285/75/17 will be nearly identical with the 75 profile being a small amount longer in the on road tread contact. And it's about an inch and some taller being I believe 33.8" tall if I recall correctly. The 285/70 stock tires are actually only 32.7". 315/70/17 is about 34.4" and a 35x is usually about 35" give or take a bit. Depending on manufacture it changes but the Math comes to about that.

Hmm.. ok then. You know for some reason this entire time I've seen the 285/75 discussion, in my mind I've just equated that as being the stock tire size. But duh, it's not. That's an excellent point and maybe a better route. Hmm... more decisions.

Tire selection is smaller though.

YouTube · Post by **OffroadTreks** » Wed Apr 20, 2016 10:06 am

nts007 wrote:285/75/17 is a good compromise size. But limited tires have that. But there are a few good ones. Width is a big player in losing mpg. Way more rolling resistance. The 285/70/17 and the 285/75/17 will be nearly identical with the 75 profile being a small amount longer in the on road tread contact. And it's about an inch and some taller being I believe 33.8" tall if I recall correctly. The 285/70 stock tires are actually only 32.7". 315/70/17 is about 34.4" and a 35x is usually about 35" give or take a bit. Depending on manufacture it changes but the Math comes to about that.

Hmm.. ok then. You know for some reason this entire time I've seen the 285/75 discussion, in my mind I've just equated that as being the stock tire size. But duh, it's not. That's an excellent point and maybe a better route. Hmm... more decisions.

Tire selection is smaller though.

Chromolykid · Post by **Chromolykid** » Wed Apr 20, 2016 11:30 am

35x12.5x15 BFG KO2's on Walker Evans 504 wheels. +1 offset, no rubbing anywhere except when flexed and turning full lock, the aggressive corners on the KO2 BARELY touch the rear plastic of the wheel well. Won't be a problem with another 1,000 miles of wear, I don't have the heart to take a dremel to my baby just yet. No noticeable difference in power loss or ride quality. Seems to shift more than before, which doesn't bother me too much, and the speedo is off by about 3mph at 65 according to my phone GPS. Highway mileage improved, city suffered, just as expected. Worth it.

Will · Post by **Will** » Wed Apr 20, 2016 11:42 am

Looks great, get you a tuner and it will fix the shift points and speedo...

Chromolykid · Post by **Chromolykid** » Wed Apr 20, 2016 11:47 am

That is on the list for sure! Any recommendations? Or are we waiting for the 6.4 tuners?

Ducky's Dad · Post by **Ducky's Dad** » Wed Apr 20, 2016 12:30 pm

Looks great, get you a tuner and it will fix the shift points and speedo...

I put an Edge tuner on my '05 with 35s and it cleaned up the shift points nicely. I've settled on the level three tune that is supposed to be OK on 87 octane, but I normally run 89 because it's usually pretty hot when I'm using the PW. Gas mileage is about the same as before the tuner, the speedo is reprogrammed for the 35s, I have a little more torque and horsepower, and the trans does not hunt for gears nearly as much as it used to in the mountains. All in all, it's a win.

When I bought my tuner last year, Edge had just come out with their new line of tuners. The "new" part was enhanced graphics and lots of fancy colors and video game style crap on the screen, but the tunes were essentially the same. So I ordered the old model with dull graphics and saved a couple hundred bucks. The Edge also gave me a programmable gauge pod on the screen with eight parameters displayed at one time. Since I am in CA, my choice of CARB compliant tuners was pretty limited, you may have more choices. I also have a Diablo Predator that would never synch up with the truck.

YouTube · Post by **OffroadTreks** » Wed Apr 20, 2016 12:49 pm

Those Walker Evans look fantastic on the truck. Nice color combo choice too.

Mopar6.4 · Post by **Mopar6.4** » Wed Apr 20, 2016 4:52 pm

olyelr wrote:
Mopar6.4 wrote:
Wouldn't a 35" tire still knock your mpg down a decent bit and cause more downshifting? I want to run 35's badly but with me putting 4,500-5,000 miles a month on my truck I can't kill my current 12.4 mpg overall average.
A lot depends on WHICH 35" tire you go with. Wider, heavier, knobbier tires make for worse rolling resistance, which will reduce MPG. If you go with a mellow 35" tire (like a Yokahama AT or something) you will most likely not notice too much of difference. Go with a wide mud tire that weighs a ton, then yeah you will surely kill some MPG.

So I guess a 35" Toyo MT would be in that NOT good mpg category. I wonder how bad a 285/75r17 Toyo MT would do, I love that tire. I definitely want to go with a E rated tire due to me hauling a ton of feed in the bed several times a month.

Mopar6.4 · Post by **Mopar6.4** » Wed Apr 20, 2016 4:54 pm

Digger wrote:

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Looks good.

Colibri · Post by **Colibri** » Wed Apr 20, 2016 5:38 pm

I found on my 09 that the toyo mt in 35" dropped mpg around town but picked up some on the highway and more or less evened out in mixed driving with an overall 1-2mpg drop.

olyelr · Post by **olyelr** » Wed Apr 20, 2016 6:13 pm

Mopar6.4 wrote:
olyelr wrote:
Mopar6.4 wrote:
Wouldn't a 35" tire still knock your mpg down a decent bit and cause more downshifting? I want to run 35's badly but with me putting 4,500-5,000 miles a month on my truck I can't kill my current 12.4 mpg overall average.
A lot depends on WHICH 35" tire you go with. Wider, heavier, knobbier tires make for worse rolling resistance, which will reduce MPG. If you go with a mellow 35" tire (like a Yokahama AT or something) you will most likely not notice too much of difference. Go with a wide mud tire that weighs a ton, then yeah you will surely kill some MPG.

So I guess a 35" Toyo MT would be in that NOT good mpg category. I wonder how bad a 285/75r17 Toyo MT would do, I love that tire. I definitely want to go with a E rated tire due to me hauling a ton of feed in the bed several times a month.

I agree, i love that size tire also. Seems to me like a perfect size for a stock truck that sees a lot of road driving. I honestly dont think you would see a big mpg hit with them but its all speculation really until you do it.

Mopar6.4 · Post by **Mopar6.4** » Wed Apr 20, 2016 6:48 pm

Colibri wrote:I found on my 09 that the toyo mt in 35" dropped mpg around town but picked up some on the highway and more or less evened out in mixed driving with an overall 1-2mpg drop.

That would drop me to about 10mpg. It wouldn't take long for that gas bill to add up, guess I'll stick with stock size or only go to 285/75r17.

This truck needs bigger tires badly

Vee · Post by **Vee** » Wed Apr 20, 2016 7:53 pm

I have 285/75r17 Toyo mall terrains on my 07. I have pulled as high as 15mpg if I drive like grandpa. I have hand calculated and am only .5 off the computer. I also have a tuner so I changed the speedo to match the tire size. The toyo mall crawlers still have a pretty decent lug to them, and they are VERY quiet.

nts007 · Post by **nts007** » Wed Apr 20, 2016 8:54 pm

37's sure fit nicely....

Digger · Post by **Digger** » Wed Apr 20, 2016 11:23 pm

olyelr wrote:
Digger wrote:

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Nice! Those suckers are gonna howl like crazy soon!

I hope not so far ..just 500 miles they are the quietest mud tire I've ever ran less noise than the stock dura tracks "so far"

2011TXPowerWagon · Post by **2011TXPowerWagon** » Wed Apr 20, 2016 11:56 pm

nts007 wrote:37's sure fit nicely....

they sure do, but I'm a little bit biased. Especially with those Hankooks

2011TXPowerWagon · Post by **2011TXPowerWagon** » Thu Apr 21, 2016 12:08 am

Sent from my SM-N920P using Tapatalk

Will · Post by **Will** » Thu Apr 21, 2016 9:45 am

Yup, 37's just fit and look soooo much better!!

TwinStick · Post by **TwinStick** » Thu Apr 21, 2016 10:58 am

Digger wrote:
olyelr wrote:
Digger wrote:

Sent from my iPad using Tapatalk

Nice! Those suckers are gonna howl like crazy soon!
I hope not so far ..just 500 miles they are the quietest mud tire I've ever ran less noise than the stock dura tracks "so far"

These tires are designed to be wayy less noisy than the old STT's, & they are. Gotta love computers designed for that. That is the first thing everyone has said that i have talked to that is running them.

FirerescuePW · Post by **FirerescuePW** » Thu Apr 21, 2016 11:59 am

WILL-STOP WITH THE PICTURES. YOU ARE GOING TO MAKE ME DO SOMETHING IRRATIONAL.

04Ram2500Hemi · Post by **04Ram2500Hemi** » Thu Apr 21, 2016 12:17 pm

FirerescuePW wrote:WILL-STOP WITH THE PICTURES. YOU ARE GOING TO MAKE ME DO SOMETHING IRRATIONAL.

I agree!

nts007 · Post by **nts007** » Thu Apr 21, 2016 2:03 pm

Ahahahahahah. Irrational. Lol. You mean practical right? That's what I tell my wife anyway

olyelr · Post by **olyelr** » Fri Apr 22, 2016 12:03 am

TwinStick wrote:

These tires are designed to be wayy less noisy than the old STT's, & they are. Gotta love computers designed for that. That is the first thing everyone has said that i have talked to that is running them.

My uncle has them on his Denali pickup. They are extremely loud after he has put a summer's worth of miles on them.

olyelr · Post by **olyelr** » Fri Apr 22, 2016 12:06 am

Will wrote:Yup, 37's just fit and look soooo much better!!

Hey Will, is that a dent in the back of your cab?

Damn that truck looks good all cleaned up like that.

Black Pearl · Post by **Black Pearl** » Fri Apr 22, 2016 12:38 am

Yea for sure it looks good...
Will I blame you for my solid Mastercard hit that I am going to be paying off this month. That pic is my screen saver at school (work). But if I'm not mistaken that pic is B4 the kings. These trucks look SO rad with 37s. I get it that it could be a milage issue stock, but Wills mpg numbers with Sean's tune it seems like a push if not improvement.
Im drinking the cool aide.........

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