Dodge Cummins Diesel Forum banner

1 - 15 of 15 Posts

·
Registered
Joined
·
387 Posts
Discussion Starter #1
The only reason i ask is i want to run a 36/13.50/20 tire on my truck. There the only brand i can find with this size. I wasnt planning on going quite that aggressive and i havent heard much about them. Anyone??
 

·
Registered
Joined
·
2,796 Posts
The only reason i ask is i want to run a 36/13.50/20 tire on my truck. There the only brand i can find with this size. I wasnt planning on going quite that aggressive and i havent heard much about them. Anyone??
they do not last very long at all

how big of a lift are you running?
 

·
Registered
Joined
·
387 Posts
Discussion Starter #3
5.5 fabtech
 

·
UNDERCONSTRUCTION
Joined
·
1,334 Posts
A friend of mine has the same size on a 16.5" rim and he got about 30k outta his but other than low miles there great off road and there street manners aren't bad. But that tire looks real good on a 20" rim. Oh and they were on a f-250 powerstroke
 

·
Registered
Joined
·
2,796 Posts
you can run 37s then..let me show you a pic of a truck that is runing 37x13.5r18s on that 5.5" fabtech
 

·
Registered
Joined
·
2,796 Posts



the guys user name is felk67 i tihnk
 

·
Registered
Joined
·
387 Posts
Discussion Starter #7
I was originally going to go 37's, but with fuel prices and now that my truck is actually fairly fast, im trying to keep it as reasonable as possible, almost wishing i would have got a 4" lift and ran 35's......but then again this lift should look awesome with it being dual shock and everythings powder coated blue, but its definately left me stumped
 

·
Registered
Joined
·
2,796 Posts
as long as you keep the gearing right and dont go with too aggressive of a tire the size of the tire shouldn't be as big of a factor when it comes to gas mileage and speed:thumbsup
 

·
Registered
Joined
·
387 Posts
Discussion Starter #9
Ya the Irok looks nice, but im thinking its going to be too aggressive......
 

·
Registered
Joined
·
247 Posts
I ran them on my last truck. It was an '03 Cummins with 9" lift and the Iroks were the 39.5's. The difference between them and the 37" Toyo's on my new truck is night and day.
The Iroks were very loud(loud enough to drown out the straight pipe that was on the truck). They did not last very long at all, maybe 20K, and they all took alot of weights to balance. When they started to wear they also started to cup out on the side treads which would cause a vibration at hwy speeds despite rebalancing. Matter of fact, the only good thing I have to say about them is that they were very good off-road.
My Toyo's on the other hand though have been the best off road tire I have yet to run on a truck.
If I were you I would just go down to a 35" or up to a 37". The difference in fuel mileage won't hardly be noticeable between those tire sizes anyway.:thumbsup
 

·
Registered
Joined
·
387 Posts
Discussion Starter #11
Alrighty thanks fella......what about speed wise, i want to make her so she still pulls hard
 

·
Registered
Joined
·
247 Posts
To be honest I can hardly tell a difference between when my truck was stock and now with the 37's on it as far as power goes and I'm pulling 6 of them on my truck. It does take a little more throttle than it used to to get started going but not enough really to matter. I still use mine for the same things that most people use theres for and thats to tow whatever I need it to.:thumbsup
 

·
Registered
Joined
·
861 Posts
i want them, that is all
 

·
Registered
Joined
·
2,356 Posts
I had a set of 39.5's that last about 25k then got a set of 41's. Loved the look of the tire but for an everyday driver they are too aggresive.
 

·
Registered
Joined
·
87 Posts
we are talking Irok RADIAL right?

NOt a Bias ply Irok?
 
1 - 15 of 15 Posts
Top