315's or 35's?

JayKay

JayKay

Caught the Bug
I'm not due for tires yet, but I can't wait until my A/T's are worn out. Currently running 315/70R17s All-terrains, but want to go with Trail Grapplers as my next set. Just not sure if I should go with 315/70R17s again or 35x12.50R17s. I know the 35s are 10 ply and the 315s are 8 ply. What are your opinions?
 
JeepKeeper said:
I'm not due for tires yet, but I can't wait until my A/T's are worn out. Currently running 315/70R17s All-terrains, but want to go with Trail Grapplers as my next set. Just not sure if I should go with 315/70R17s again or 35x12.50R17s. I know the 35s are 10 ply and the 315s are 8 ply. What are your opinions?
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They make both in trail grapplers? Usually it's one or the other since they're similar in size. I've found the 35 X 12.5 tend to be wider than the 315. I'd go with the 35's, especially if the sidewall is 10 ply vs. 8.
 
Depends on the kind of wheeling you do. If you're more of a daily driver, the lighter tire might be better for you, your wallet and your rig. If you gauge the sidewalls on rocks crawling on more than malls than you might want the 35s. Size wise they are similar, sometimes the metrics are even slightly bigger (not really enough of a difference to matter).


Ive been researching this ALOT on the various sites trying to gauge my best choice too and for me Im probably going to go with the 315s because of the following factors:

The tire I want comes in this size (for snow and year round performance. mostly the snow performance coupled with not having to swap out the other 9 months)
The price. It seems to me that the price of metric tires is somewhat cheaper than equivalent imperial sized tires. Not always. But so far so good.
The weight. I have a d30 up front with a poor gear ratio. A lighter tire that will stand up to the occasional wheeling that I do is perfect for me IMHO.


I took my Duratracs at 31" on a stock (sport) rig with 16x7 steel wheels and hung out with Rubicons and did just fine. Aired down, crawled up and down everything I could find and even went some places the stock Rubi drivers didnt feel like going.

Even the 8 ply sidewalls hold up like a beast. Just my :twocents:
 
Not being a smart ass, but the sidewalls are not 8 and 10 ply. The ply rating is the amount of steel belting in the tread (nylon belting in a bias ply). I manage a tire shop and went with the Cooper Discoverer A/T 3 because of price for the most part and also I didn't want to listen to a mud tire "sing" on the highway, which at this point I don't really care if they're noisy. The Coopers I have are 8 ply. I really just want the Trail Grappler for looks and some off road benefits. I'm really just curious to see if anyone has the 315s on their rig to compare to the 35s. I am considering the 315s if there isn't a noticeable size difference. The weight may be an importance to me because I believe the 315s are about 7 pounds lighter than the 35s, any weight I can shed would definitely help in highway performance I would think
 
JeepKeeper said:
I'm not due for tires yet, but I can't wait until my A/T's are worn out. Currently running 315/70R17s All-terrains, but want to go with Trail Grapplers as my next set. Just not sure if I should go with 315/70R17s again or 35x12.50R17s. I know the 35s are 10 ply and the 315s are 8 ply. What are your opinions?
Click to expand...

JeepKeeper said:
Not being a smart ass, but the sidewalls are not 8 and 10 ply. The ply rating is the amount of steel belting in the tread (nylon belting in a bias ply). I manage a tire shop and went with the Cooper Discoverer A/T 3 because of price for the most part and also I didn't want to listen to a mud tire "sing" on the highway, which at this point I don't really care if they're noisy. The Coopers I have are 8 ply. I really just want the Trail Grappler for looks and some off road benefits. I'm really just curious to see if anyone has the 315s on their rig to compare to the 35s. I am considering the 315s if there isn't a noticeable size difference. The weight may be an importance to me because I believe the 315s are about 7 pounds lighter than the 35s, any weight I can shed would definitely help in highway performance I would think
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Pretty sure we said they are similar in size and 315s are lighter. Cozdude has 315s I think as do lots of guys here. And pardon our ignorance to the bias ply terminology, but the reference to sidewalls was more in reference to durability and not the technical nomenclature.

http://tire-size-conversion.com/

there is a link to a tire size calculator that can show you the measurements. I know lots of tires are one size as advertised as 35s and are actually 34s. So far most seems to agree that a lot of the metric sizes run more true to advertised size, generally speaking.
 
JKWrang said:
Pretty sure we said they are similar in size and 315s are lighter. Cozdude has 315s I think as do lots of guys here. And pardon our ignorance to the bias ply terminology, but the reference to sidewalls was more in reference to durability and not the technical nomenclature.

http://tire-size-conversion.com/

there is a link to a tire size calculator that can show you the measurements. I know lots of tires are one size as advertised as 35s and are actually 34s. So far most seems to agree that a lot of the metric sizes run more true to advertised size, generally speaking.
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Sorry, wasn't trying to call out anyone as being ignorant, just clarifying what ply ratings are in the make up of a tire.

I'm probably overthinking the whole subject but trying to educate myself even as a tire salesman.

Thank you to everyone for your input. When the time comes to get new rubber I'll probably just end up going with what my wallet allows since I know for a fact that the 315s are cheaper.
 
MountainRambler said:
I don't have any personal experience with either size tire but from reading the specs, the Trail grapplers on 17'' rim in 315's are not quite as tall but are slightly wider than the 35's. Also The 315's are D load while 35's are E load. Most folks I have talked to say D loads ride better than E loads on a Jeep Wrangler. E load tires are usually found on 1 ton pickups.


http://www.nittotire.com/Tire/Grappler%20truck/trailgrappler#size
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^T. The d load will also have a sidewall that flexes better. The 35's that i bought don't flex as much on the rocks as I would like them to.
 
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Size wise very close, the biggest difference is going to be the weight. I went with the 35s for the slightly higher tread depth and $6 cheaper per tire :D.

Tire Size, Stock Number, Tread Depth, Diameter, Width, Approved Rim, Max Pressure, Max load
tg-size.jpg

Trail Grappler Size Chart
 
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