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Which tires would you run?

rslaback

New Member
Joined
Sep 16, 2021
Messages
6
I recently bought a '13 LT that is wearing a nice set of P275/55/20s. The Avalanche that it is replacing currently has on it a set of LT265/70/17s. I went to LT tires on the 2004 because when pulling my camper the rear of the truck was floating all over the place.

I have a cross state 3.5 hour drive camping trip coming up. I'd prefer to get a taste of the 20s when towing but don't know that there will be time for that. Knowing that I can bolt either set of wheels on the new truck, would you go with the LT tires in 17" or just run the 20s that are on it.
 

Raekal

PM 2021
Full Member
Joined
Apr 5, 2021
Messages
351
Location
Flint, Mi
Eh, I wouldnt be surprised if they 'act' similarly to one another, Id expect the 20" wheel to be a bit more stable, though with a slightly harsher ride. The advantages (outside of weight capacity) that the LT tires have are kind of matched by the 20" size. The reduced sidewall height reduces flexing and the wider tire will provide better stability. Outside of the raw weight capacity, I don't think the LT tire offers any other advantage to you. Presuming that both tread patterns are the same anyway.


I love this visualizer to compare the sizes for reference: https://tiresize.com/comparison/
 

CjMac

New Member
Joined
Jul 27, 2021
Messages
3
I recently bought a '13 LT that is wearing a nice set of P275/55/20s. The Avalanche that it is replacing currently has on it a set of LT265/70/17s. I went to LT tires on the 2004 because when pulling my camper the rear of the truck was floating all over the place.

I have a cross state 3.5 hour drive camping trip coming up. I'd prefer to get a taste of the 20s when towing but don't know that there will be time for that. Knowing that I can bolt either set of wheels on the new truck, would you go with the LT tires in 17" or just run the 20s that are on it.
I'd say it depends on what your priority is... driving, towing or camping.
- Driving: The P275/55/20s will be great for highway miles. LT265/70/17s are likely to be noisier and wear faster.
- Towing: 20s with a heavier tire should provide better towing. LT265/70/17s may* provide better towing, but it depends on what you buy... I run Goodyear Wrangler Pro Grades (265/70/17s) on my 2002 because the heavier side wall seems to manage the heavier truck (I believe all AVs push the definition of LT). * I said "may" earlier because the bigger sidewall can make towing squishy... That said, I've run my tires up to 65psi for heavy towing (tire is 80psi max) and haven't had any issues. (Well, there may have been 1 time there was 3/4 ton of rocks in the bed...)
- Camping: The 265/70/17s still have enough side-wall for light off-roading and corrugated roads (mostly good if there's a road). I'm currently sorting if 255/85/17 Mickey Thompson Baja Boss ATs might fit with my 3" lift... Just to get the extra inch of sidewall.
> Best of luck. Let us know what you decide and how it goes!
 

Toggenburg

Full Member
Joined
Sep 26, 2021
Messages
11
I only use Michelin Defenders on my 2010 LTX AV, 70K mileage rating and pulls a hay wagon on hills while remaining in 2wd.
All my vehicles use the same product (sized for that vehicle), Suburban, etc. Never had a failure with this brand and tire pattern.
 

4x4dreamer

Cruise Coord
SM 2018
SM 2017
PM 2013
SM 2008
Full Member
Joined
Apr 5, 2008
Messages
2,703
Location
Richwood, WV
We just put a set of Cooper AT3's 275/55/20 on the 2013. Although the overall tread block is suitable for off-roading, they ride smooth as silk on the interstate @ 70-80mph with 36-40lbs in them.
 
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