2014+ Leveling Kits

lobstermen · January 27, 2015

I went from my stock 265/65/r18 tires to duratrac 275/60/r20s with oe all terrain rims. My average mpg went from 19 to 13. Now I did not truck recalibrate my truck for these bigger tires. So I assume the average mpg on trucks computer is off a bit? On the highway yesterday truck would stay in v8 mode 90 % of the time. My question is whether this is about the same everyone else is seeing? I was expecting about a 2-3 mpg loss. But 6 seems like alot.

elviswas · January 27, 2015

I wish I got 13 mpg my millage sucks under 10 most of the time highway around 19

graves_7 · January 27, 2015

I went from my stock 265/65/r18 tires to duratrac 275/60/r20s with oe all terrain rims. My average mpg went from 19 to 13. Now I did not truck recalibrate my truck for these bigger tires. So I assume the average mpg on trucks computer is off a bit? On the highway yesterday truck would stay in v8 mode 90 % of the time. My question is whether this is about the same everyone else is seeing? I was expecting about a 2-3 mpg loss. But 6 seems like alot.

I have a p275/60r20 on 20x9 XD Addict wheels and I averaged 16.3 MPG's on my last tank of fuel (hand calculated so it is accurate). I have some cheapo Pathfinder S/AT tires that Kumho makes for Discount Tire that I purchased for my old truck because I knew I was going to trade it then I ended up keeping the wheels and tires for my 2014 Sierra. It is hard to find any specs on my tires but I believe they weigh around 45lbs (looks like the Duratracs weigh around 48lbs) and my wheels are around 31lbs each (not sure what the factory wheels weigh). I drive mostly city...I have a 10 mile stretch on my way to work that is a 4 lane, but it has occasional red lights I hit. I also towed two ATV's on my trailer for about 15 miles on that tank of gas.

Yamiryder · January 27, 2015

Ok guys, any help is appreciated....I have a dilemma between going 295/70/18(unknown fitment) vs 275/70/18(known to fit easily).

My setup is 2014 Sierra A/T Double Cab with RCX 2.5" kit.

My question is geared towards the 295/70/18... how bad will I rub on 18x9 +12 ? What 18x9 wheel offset would work?

I see some guys doing 295/60/20, on the 2.5" kit, and that measures about .25" shorter than the 295/70/18.

I just don't wanna invest that kinda cash and not be satisfied with overall width and height of the tire. 275/70/18 just doesn't seem like a large enough increase to justify. I don't really wanna go to a 20" wheel for overall ride quality and the look just isn't for me, I like meaty sidewalls. Any input is appreciated, I'm ready to pull the trigger.

I felt the exact same way. I'm going with 295/70/17's. Could have gone 33x12.50x18, but for some reason, the standard sizes cost way more per tire and I refuse to pay that price haha.

abronstrup21 · January 27, 2015

I have a 2015 Sierra Denali and I just put the 2.5" RC level kit on the front. I didn't add the rear block because it sits almost perfectly level now. The problem I have is that it rides like a dump truck now. The front is really tight and bouncy. It has been aligned professionally and everything but the ride is definitely worse than I had anticipated. Anyone else have this problem? The truck does have the factory 22" wheels and the side wall of the tire is pretty low profile but this has me thinking of taking it off completely. Any suggestions because Rough Country said they had never heard of this before?!

No Tyme · January 27, 2015

I have a 2015 Sierra Denali and I just put the 2.5" RC level kit on the front. I didn't add the rear block because it sits almost perfectly level now. The problem I have is that it rides like a dump truck now. The front is really tight and bouncy. It has been aligned professionally and everything but the ride is definitely worse than I had anticipated. Anyone else have this problem? The truck does have the factory 22" wheels and the side wall of the tire is pretty low profile but this has me thinking of taking it off completely. Any suggestions because Rough Country said they had never heard of this before?!

I have a 2015 Sierra Denali and I just put the 2.5" RC level kit on the front. I didn't add the rear block because it sits almost perfectly level now. The problem I have is that it rides like a dump truck now. The front is really tight and bouncy. It has been aligned professionally and everything but the ride is definitely worse than I had anticipated. Anyone else have this problem? The truck does have the factory 22" wheels and the side wall of the tire is pretty low profile but this has me thinking of taking it off completely. Any suggestions because Rough Country said they had never heard of this before?!

My 2014 LT Crew 4X4 has the RC 2 1/2" level/lift kit with complete install and I will agree that the front end seems stiffer and that the back seems mushy. I was thinking of trying the Rancho shocks on the rear of my LT to see if that would change (stiffen) things in the rear. I know it would effect the ride quality...

I have also given some thought to pulling out the upper spacer to reduce it to a 2" level kit since it's .5" and only gives you .5" of lift. Keep us informed.

CptMcSaug · January 27, 2015

This is the ready lift 2.25 in the front and 2 in block in the rear

Before

After

UPDATE With Tires

275/65r20 Cooper ST Maxx

How's the ride?

tanner709 · January 27, 2015

I have 295/70x70 with a +18 offset i havent trimmed anything and thats with the 2.5 rc kit , i could have gone a bit bigger i think youll be fine with a 295/70x18

Nice truck, I like those wheels and still haven't confirmed kmc vs method yet. I like the setup but 295/70/17 and 295/70/18 differ by 1" in height. Do you have more than a 1/2" of clearance at all points around your tire ?

78BigTen · January 28, 2015

RC 2" Level with stock tires. Still looking at tire upgrades but leaning towards 285/65-18 Nitto Terra Grappler or BFG AT on the stock wheels.

abronstrup21 · January 28, 2015

I have a 2015 Sierra Denali and I just put the 2.5" RC level kit on the front. I didn't add the rear block because it sits almost perfectly level now. The problem I have is that it rides like a dump truck now. The front is really tight and bouncy. It has been aligned professionally and everything but the ride is definitely worse than I had anticipated. Anyone else have this problem? The truck does have the factory 22" wheels and the side wall of the tire is pretty low profile but this has me thinking of taking it off completely. Any suggestions because Rough Country said they had never heard of this before?!

My 2014 LT Crew 4X4 has the RC 2 1/2" level/lift kit with complete install and I will agree that the front end seems stiffer and that the back seems mushy. I was thinking of trying the Rancho shocks on the rear of my LT to see if that would change (stiffen) things in the rear. I know it would effect the ride quality...

I have also given some thought to pulling out the upper spacer to reduce it to a 2" level kit since it's .5" and only gives you .5" of lift. Keep us informed.

Did you add the rear blocks as well? It doesn't appear is if you did. I am also thinking of taking the front .5" spacer to help with ride quality. If you do this soon, let me know how it changes things. Thanks

MattUofM · January 28, 2015

here is a the radylift leveling kit. think this one is 2.5in. anyway i drove it around and it seems to ride and drive nice. the only place i feel it is stiffer is on larger bumps. anyway, i think we are going to start making this a "package for the all-terrains that we get in. make them the way they should come from the factory. leveled and bfgoodrich m2's

skennel23 · January 28, 2015

What size tires are on that truck? looks awesome!

5RWill · January 28, 2015

here is a the radylift leveling kit. think this one is 2.5in. anyway i drove it around and it seems to ride and drive nice. the only place i feel it is stiffer is on larger bumps. anyway, i think we are going to start making this a "package for the all-terrains that we get in. make them the way they should come from the factory. leveled and bfgoodrich m2's

Those look like KO2s, here is the M2. Still great looking truck. I wish i would've gotten the all terrain just for the rims, then debadged it.

bubaloo1983 · January 28, 2015

is anyone running the 3 inch body lift, with a level and 35s?

Im thinking about this set up as my final specs. im running a 2 inch level on slightly larger then stock tires now. it just isn't high enough for me lol

if you do can you post pics please. thanks!