Tire Search
#1
Chapter President
Thread Starter
Tire Search
OK, so I am searching for tires for my dually. I thought I knew a little bit about tires, but have learned recently I didn't know anything! Tire sizing is crazy! One good thing that has come from it is that I have created a great little calculator with Excel to show me what all these sizes really mean.
So currently I am running 235/85/16 which equates to a 31.75". The truck only has a 2" levelling kit. I want to go with something that will give me more height as I have 4.11 gears. I also want something that will allow me to go off-road occasionally. Being in the desert snow & mud aren't a major concern. I plan on occasionally towing with this rig.
My current thoughts are to go with a 17" wheels.
Since I am currently running on 235's the best I have found in this width is a 235/80/17 which gives me 31.80" in height. This doesn't really buy me much other than I have less sidewall to worry about.
So, now I have to wonder how wide can I go on a 98 dually before needing spacers? Are spacers really a bad thing? How do I determine space size to tire size? How big of a tire can I put on this truck without lifting it further than it already is? I don't want to go so big that I am going to be creating more steering problems for me...
The "smallest" bigger tire that I am finding is a 295/70/17 which would be 33.25" in height increasing my overall tire height by 1.5". Which begs another questions, how high do I have to go to have a noticable reduction in RPM on the freeway?
So currently I am running 235/85/16 which equates to a 31.75". The truck only has a 2" levelling kit. I want to go with something that will give me more height as I have 4.11 gears. I also want something that will allow me to go off-road occasionally. Being in the desert snow & mud aren't a major concern. I plan on occasionally towing with this rig.
My current thoughts are to go with a 17" wheels.
Since I am currently running on 235's the best I have found in this width is a 235/80/17 which gives me 31.80" in height. This doesn't really buy me much other than I have less sidewall to worry about.
So, now I have to wonder how wide can I go on a 98 dually before needing spacers? Are spacers really a bad thing? How do I determine space size to tire size? How big of a tire can I put on this truck without lifting it further than it already is? I don't want to go so big that I am going to be creating more steering problems for me...
The "smallest" bigger tire that I am finding is a 295/70/17 which would be 33.25" in height increasing my overall tire height by 1.5". Which begs another questions, how high do I have to go to have a noticable reduction in RPM on the freeway?
#3
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Re: Tire Search
Originally posted by ViperSBT
The "smallest" bigger tire that I am finding is a 295/70/17 which would be 33.25" in height increasing my overall tire height by 1.5". Which begs another questions, how high do I have to go to have a noticable reduction in RPM on the freeway?
The "smallest" bigger tire that I am finding is a 295/70/17 which would be 33.25" in height increasing my overall tire height by 1.5". Which begs another questions, how high do I have to go to have a noticable reduction in RPM on the freeway?
#4
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i went from a 265/75/16 to a 315/75/16 and it was exactly 10 percent lower.
heres something for you that helps
http://www.intercotire.com/site62.php
heres something for you that helps
http://www.intercotire.com/site62.php
#5
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i run 285/70/16s on my dually, i use a 2" spacer to fit them in the rear.it is one of the best mods i have done. i am running the yokohama geolanders. there are some pix in my gallery
#6
Viper, I just replied to a thread last week on this subject, but searching is not my best thing on here. You can run 265-75-R16's on factory rims with a washer on each lug or a spacer plate like I made for mine in my gallery. Your other option is to buy spacers. You can run up to 315's with 2.5 inch spacers or up to maybe 305's with a 2 inch spacer. I have a set of 2.5 inch spacers I am currently trying to trade for 2 inch ones. No one is biting. I were leary of the spacers holding the weight. Not any more. I grossed over #30,000 hauling too much dirt in a dump trailer the other day. I have since took the spacers off and inspected every inch of them. There is no deformation, cracks, stress marks, nothing. PM me if you have any more questions. I have been researching this for almost a year now. I want to run 285's on my 2001 DRW. I just haven't saved up the money yet. I think that is the large tire as far as width goes that I can put on my factory rims.
#7
Chapter President
Thread Starter
Originally posted by gunracer1
i run 285/70/16s on my dually, i use a 2" spacer to fit them in the rear.it is one of the best mods i have done. i am running the yokohama geolanders. there are some pix in my gallery
i run 285/70/16s on my dually, i use a 2" spacer to fit them in the rear.it is one of the best mods i have done. i am running the yokohama geolanders. there are some pix in my gallery
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#8
Chapter President
Thread Starter
Originally posted by 4x4dually
Viper, I just replied to a thread last week on this subject, but searching is not my best thing on here. You can run 265-75-R16's on factory rims with a washer on each lug or a spacer plate like I made for mine in my gallery.
Viper, I just replied to a thread last week on this subject, but searching is not my best thing on here. You can run 265-75-R16's on factory rims with a washer on each lug or a spacer plate like I made for mine in my gallery.
#10
since I know modding this truck is why you bought it....look into lighter wheels (alcoas/ eagles) if you want to improve to the ride slightly....or go big with 19.5's or 22's.....Towing a gooseneck or 5th isn t this trucks main purpose so bed hieght is not a real issue. Getting the 4.10's to be like 3.55's.....thats around 12% ....so you would need a 10-12% change in tire as well....I would not be too concerned with width....but height/ circum . I d look at 33 inch tires...and try to get them on the truck, 16's or larger wheels.
I have a pretty good hook up at a tire store....pm me if you want to go down there....I bought around 30 tires last year.
I have a pretty good hook up at a tire store....pm me if you want to go down there....I bought around 30 tires last year.
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