Tire size advice

6TEEN5.3 · July 9, 2017

Hey guys I need some quick advice. I have 33x12.50r17s nittos on stock 17s. Love the tires but I wish I would've gone a little taller. I've seen people running 35s with just a level but I decided to stick with the 33s. I now have a chance to trade my tires for a set of 315/70r17 duratracs. I understand they're about the same width and about an inch taller. Would you recommend this trade? Both almost brand new and even trade. Thanks!

Nittos

Goodyears

Aboogie808 · July 9, 2017

Hello, I have done tire swap outs before. The main thing you need to make sure is, when the wheel is in full lock, will it hit anything. Bigger tires add issues, if they are not on the right set up.

Silver16 · July 9, 2017

Plug in the size and see. Lots of options

https://tiresize.com/tires/Chevrolet/Silverado/2016/2500-HD-4wd-Crew-Cab/

Z45 · July 9, 2017

The taller the tire that you install on your truck, the higher the gear ratio will become. Larger tires will also have a larger rotating mass due to the increase in weight. Both of these issues will result in a loss of low end torque. Your engine will have to strain harder to get the wheels rolling at the start. The stock drive-train and suspension components of most truck's are not built to withstand the extra stress that the heavier over-sized tires put on them. The added stress will accelerate the wear on these components and lead to failure much faster than a stock set-up.

6TEEN5.3 · July 10, 2017

The taller the tire that you install on your truck, the higher the gear ratio will become. Larger tires will also have a larger rotating mass due to the increase in weight. Both of these issues will result in a loss of low end torque. Your engine will have to strain harder to get the wheels rolling at the start. The stock drive-train and suspension components of most truck's are not built to withstand the extra stress that the heavier over-sized tires put on them. The added stress will accelerate the wear on these components and lead to failure much faster than a stock set-up.

Is there a real big difference between the two? I find the 315s to be a couple lbs lighter than the 33s according to manufacturer specs.

Spurshot · July 10, 2017

I'm guessing you'll have rubbing issues at full lock.

6TEEN5.3 · July 10, 2017

I'm guessing you'll have rubbing issues at full lock.

I don't mind rubbing. I don't do rock crawling or crazy off road. My main concern is gears/driveshaft/tranny holding up. Some people say I have to re-gear but I know guys running 35s on f-150s, rams and even Tacomas with no problems.

Rkaroll953 · July 11, 2017

ur gonna run into a problem with the width of the taller tire. i rub with a 34/12/18 urs will be wider and taller. you will deffinetly need to get the top .5 spacer to make it a 2.5 level kit if you want to try it. stock wheels u will have a better chance than offset tho, if you dont mind a little work to make them fit you prob will be happy. I have been running 71lbs trail grapplers for 10k miles not there deffinetly alot heavier than my stocker size duratracs but i dont drive on the highway alot so it doesent bother me.

6TEEN5.3 · July 12, 2017

ur gonna run into a problem with the width of the taller tire. i rub with a 34/12/18 urs will be wider and taller. you will deffinetly need to get the top .5 spacer to make it a 2.5 level kit if you want to try it. stock wheels u will have a better chance than offset tho, if you dont mind a little work to make them fit you prob will be happy. I have been running 71lbs trail grapplers for 10k miles not there deffinetly alot heavier than my stocker size duratracs but i dont drive on the highway alot so it doesent bother me.

Have you measured them? My "33s" only measure 32 mounted

Rkaroll953 · July 12, 2017

Have you measured them? My "33s" only measure 32 mounted

yea they measure 33.5 x 11.5

Donstar · July 12, 2017

I'd keep your 33's. The only positive is a perceived improvement in looks. Your truck looks great the way it is now, imo, and larger diameter wheels will only detract from performance.

6TEEN5.3 · July 12, 2017

yea they measure 33.5 x 11.5

I assume 35s measure closer to 34 then

6TEEN5.3 · July 12, 2017

I'd keep your 33's. The only positive is a perceived improvement in looks. Your truck looks great the way it is now, imo, and larger diameter wheels will only detract from performance.

Thanks I like it the ride and mpg are good but the 35s just look great

Donstar · July 12, 2017

Thanks I like it the ride and mpg are good but the 35s just look great

Yes, but you will soon be wanting 37's!

bcbz71 · July 13, 2017

I'd keep your 33's. The only positive is a perceived improvement in looks. Your truck looks great the way it is now, imo, and larger diameter wheels will only detract from performance.

This is the best advise on this thread. Your truck looks GREAT like it is and I'd be very surprised if those 33s aren't already rubbing somewhere. If you want to run 35" tires properly, you need a 4-6 lift. 35s on a level look overstuffed.