GMC Truck Forum banner

1 - 9 of 9 Posts

·
Registered
Joined
·
310 Posts
Discussion Starter #1
Looking for a good lt tire size for a 20 inch rim looked at 305/55 or 275/65 since there skinnier but there taller. Running them on a 06 cc level kit 3 inch rear blocks can fit 35 but rub at full lock.
 

·
The Canadian
Joined
·
3,241 Posts
Looking for a good lt tire size for a 20 inch rim looked at 305/55 or 275/65 since there skinnier but there taller. Running them on a 06 cc level kit 3 inch rear blocks can fit 35 but rub at full lock.
305/55/20. 295/55/20. 295/60/20. 275/60/20. 275/65/20. 33 x 12.50 x 20.

like?? You already had a thread exactly the same. lots of tires 32.5-35" tall on 20's. Go search some tire companies sites...
 

·
Registered
Joined
·
310 Posts
Discussion Starter #4
I want personal experiences like which gets best mileage
 

·
Registered
Joined
·
4,874 Posts
seriously? 33" tires and gas mileage?

i can tell you all terrains are going to be lighter than mud terrains. also narrower tires have a lower rolling resistance. lastly LT tires will be heavier than P metric tire. certain sizes in 20's come in both flavors. being a 1/2 ton you can safely run either. unless you really want an 8/10ply tire
use your brain and some common sense to figure out best gas mileage on that..


also thanks for not answering our question about your wheels. that will make a huge difference in what tires will fit or not.

there's a metric shit ton of tires and tire sizes for 20's.
 

·
Registered
Joined
·
310 Posts
Discussion Starter #6
There xd monsters 20x9 +18 offset, could I get the 275/65 over the 305/55 for mileage since it's tall skinny ?
 

·
The Canadian
Joined
·
3,241 Posts
There xd monsters 20x9 +18 offset, could I get the 275/65 over the 305/55 for mileage since it's tall skinny ?
If you do a lot of highway, would keep your RPM a tad lower, and less rolling resistance, probably the same, or a MPG better.

1/2 tonnes with stock tires/rims to 33's with a good engine tune, should get the same mileage or maybe loose 1 or 2 MPG
 

·
Registered
Joined
·
1,446 Posts
You're driving the wrong vehicle if your concern is mileage.

The tire sizes you are comparing most likely will all have the same mpg loss.

You can find some 33" AT's as light as 56-58lbs and the heaviest in at around 70lbs. MT's will range from 62-65lbs all the way to 80lbs.

As for width of the tire, again, you're not going to see a miracle gain or loss is mpg just by switching from one width to another.

Figure out what width you want to run and go search around on google for the weights of tires. Nitto Terra Grapplers are one of the lighter AT's. If you want an even more highway friendly AT you could go with a Dune Grappler.
 

·
Registered
Joined
·
310 Posts
Discussion Starter #9
Thanks for the help guys looks like I'm getting 275/65r20
 
1 - 9 of 9 Posts
Top