2014+ Leveling Kits

LTeddy · January 25, 2016

Finally got mine clean. Readylift 2.25", Method NV 17x8.5 0 offset, Duratrac 285/70/17.

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Your truck is gorgeous [emoji7]

Life is full of regrets.. Buying bfgs isn't one of them!

BBSierra84 · January 26, 2016

Hello All,

First off, I want to say thank you to everyone on this forum, for all your research, information and pictures. It made my effort on the modification on my truck much easier. I have taken many pictures and tried to get as much details about before/after in ride height and fuel mileage for everyone. I hope this helps everyone who is looking at doing the same. My truck had an almost 4” rake before the level, which drove me nuts and the low ground clearance in front, were the main reasons I added the level and larger tires. Absolutely love the way the truck came out, would do it again in a heartbeat.

2014 GMC Sierra Crew Cab SLT All Terrain 5.3L Short Bed

Level Kit - Pro Comp 2.25” level

Tires - 275/60/20 BFG A/T KO2s

RIDE HEIGHT

Before (measured from the ground through the center of the tire to the wheel well):

Front - 36”

Rear - 39 ¾”

After (same measurement technique):

Front - 38 ¾”

Rear - 39 ¾”

Pro Comp 2.25” Level Front end only (nothing done to the rear). I went with this kit instead of the RC 2.5” because it seems to be of a slightly higher quality material and I didn’t know if that additional .25” would make it look too tall with 275/60s.

I measured multiple times before to ensure accuracy, as well as multiple times after. Yes, I thought was a little odd that the rear didn’t come up since the new tires were just over a full inch taller, but seems this isn’t the only case. Front came up exactly 2.25” + 0.5”. I adjusted the headlights slightly after because they ran a little high, easy adjustment.

RIDE QUALITY

Before the level kit and tires, this truck rides great, especially for this large of a truck. It was incredible quiet and surprisingly soft. After the level kit and tires, there is a very noticeable stiffness in the front end now. By no means is it too stiff, but coming from how soft the stock truck is, its a much firmer ride. (I have gotten use to it since the initial drive from the shop). I am sure this is a combo of the level kit and tires. Being a firmer ride, I would argue that the truck actually handles turns better now with the firmer setup.

Sound - The level kit I wouldn’t imagine would have any difference in road noise, maybe wind noise as it sits higher, but with the new KO2s, you can hear a little bit of a buzz on the highway over stock (stock tires are incredibly quiet). Most people would not even notice, especially if the music is on.

Acceleration - These new tires (BFG A/T KO2s 275/60/20) are much heavier than the stock Goodyear Wrangler SR-A (275/55/20), and you notice it immediately. Again, nothing you won’t get use to with time, but right after they were put on, accelerating off the line it is noticeable that these tires are in the range of +16lbs per tire. This plays into MPG below.

MPG

Before I was in the range of 17 CIty and 22 Hwy. After the level and tires, I am in the 15 City and 21 Hwy. When I am going just around town in traffic, it can easily be in the 14 mpg range. On the highway, I haven’t noticed that big of a difference each drive is a little different and it’s in the 0-2mpg range. (Don’t have many really flat hwys where I am)

TIRES

Had the stock Goodyear Wrangler SR-A (275/55/20) previously and they are great highway tire, but terrible off road and in bad weather. I wanted to go with a good all terrain tire that I can take off road, use in the snow and still be on an everyday truck. I was originally going to go with the 275/65/20 KO2s but were out of stock and it would take 3 months to arrive, and I was getting a super deal, so I went with what they had in stock, 275/60/20. The shop I went to said there is a small chance the 65s would rub a little with the Pro Comp 2.25” level, so I decided to play it safe, and cheaper with the 60s. (Plus the 65s would be even heavier and higher load rating) They fit VERY easily, not even close to rubbing anywhere. I will probably go with the 65 series when these wear out for a little extra height and the look. So far I have had them on city, hwy, snow and light off road, and they have been great.

Clocked92 · January 26, 2016

Hello All,

First off, I want to say thank you to everyone on this forum, for all your research, information and pictures. It made my effort on the modification on my truck much easier. I have taken many pictures and tried to get as much details about before/after in ride height and fuel mileage for everyone. I hope this helps everyone who is looking at doing the same. My truck had an almost 4” rake before the level, which drove me nuts and the low ground clearance in front, were the main reasons I added the level and larger tires. Absolutely love the way the truck came out, would do it again in a heartbeat.

2014 GMC Sierra Crew Cab SLT All Terrain 5.3L Short Bed

Level Kit - Pro Comp 2.25” level

Tires - 275/60/20 BFG A/T KO2s

RIDE HEIGHT

Before (measured from the ground through the center of the tire to the wheel well):

Front - 36”

Rear - 39 ¾”

After (same measurement technique):

Front - 38 ¾”

Rear - 39 ¾”

Pro Comp 2.25” Level Front end only (nothing done to the rear). I went with this kit instead of the RC 2.5” because it seems to be of a slightly higher quality material and I didn’t know if that additional .25” would make it look too tall with 275/60s.

I measured multiple times before to ensure accuracy, as well as multiple times after. Yes, I thought was a little odd that the rear didn’t come up since the new tires were just over a full inch taller, but seems this isn’t the only case. Front came up exactly 2.25” + 0.5”. I adjusted the headlights slightly after because they ran a little high, easy adjustment.

RIDE QUALITY

Before the level kit and tires, this truck rides great, especially for this large of a truck. It was incredible quiet and surprisingly soft. After the level kit and tires, there is a very noticeable stiffness in the front end now. By no means is it too stiff, but coming from how soft the stock truck is, its a much firmer ride. (I have gotten use to it since the initial drive from the shop). I am sure this is a combo of the level kit and tires. Being a firmer ride, I would argue that the truck actually handles turns better now with the firmer setup.

Sound - The level kit I wouldn’t imagine would have any difference in road noise, maybe wind noise as it sits higher, but with the new KO2s, you can hear a little bit of a buzz on the highway over stock (stock tires are incredibly quiet). Most people would not even notice, especially if the music is on.

Acceleration - These new tires (BFG A/T KO2s 275/60/20) are much heavier than the stock Goodyear Wrangler SR-A (275/55/20), and you notice it immediately. Again, nothing you won’t get use to with time, but right after they were put on, accelerating off the line it is noticeable that these tires are in the range of +16lbs per tire. This plays into MPG below.

MPG

Before I was in the range of 17 CIty and 22 Hwy. After the level and tires, I am in the 15 City and 21 Hwy. When I am going just around town in traffic, it can easily be in the 14 mpg range. On the highway, I haven’t noticed that big of a difference each drive is a little different and it’s in the 0-2mpg range. (Don’t have many really flat hwys where I am)

TIRES

Had the stock Goodyear Wrangler SR-A (275/55/20) previously and they are great highway tire, but terrible off road and in bad weather. I wanted to go with a good all terrain tire that I can take off road, use in the snow and still be on an everyday truck. I was originally going to go with the 275/65/20 KO2s but were out of stock and it would take 3 months to arrive, and I was getting a super deal, so I went with what they had in stock, 275/60/20. The shop I went to said there is a small chance the 65s would rub a little with the Pro Comp 2.25” level, so I decided to play it safe, and cheaper with the 60s. (Plus the 65s would be even heavier and higher load rating) They fit VERY easily, not even close to rubbing anywhere. I will probably go with the 65 series when these wear out for a little extra height and the look. So far I have had them on city, hwy, snow and light off road, and they have been great.

Awesome review. I have the same truck and just added Bilstein 5100's to level my truck. I am waiting on the same tires as well. those pictures of your truck make me really excited for when my tires show up.

99-ls1-ss · January 26, 2016

I like BBSierra84's truck height and stance. This is the ride height I'm looking for. In my opinion, this is the perfect stance and height for these trucks.

bcbz71 · January 26, 2016

RC 2inch level, with 275-70-18 Grabber AT2's

Those Generals look much beefier than KO2s in that same size. Looks like you have some ballooning around the rim to make them look wider. How do you like the front and rear look of them?

Silver Sally · January 27, 2016

Hello All,

First off, I want to say thank you to everyone on this forum, for all your research, information and pictures. It made my effort on the modification on my truck much easier. I have taken many pictures and tried to get as much details about before/after in ride height and fuel mileage for everyone. I hope this helps everyone who is looking at doing the same. My truck had an almost 4” rake before the level, which drove me nuts and the low ground clearance in front, were the main reasons I added the level and larger tires. Absolutely love the way the truck came out, would do it again in a heartbeat.

2014 GMC Sierra Crew Cab SLT All Terrain 5.3L Short Bed

Level Kit - Pro Comp 2.25” level

Tires - 275/60/20 BFG A/T KO2s

RIDE HEIGHT

Before (measured from the ground through the center of the tire to the wheel well):

Front - 36”

Rear - 39 ¾”

After (same measurement technique):

Front - 38 ¾”

Rear - 39 ¾”

Pro Comp 2.25” Level Front end only (nothing done to the rear). I went with this kit instead of the RC 2.5” because it seems to be of a slightly higher quality material and I didn’t know if that additional .25” would make it look too tall with 275/60s.

I measured multiple times before to ensure accuracy, as well as multiple times after. Yes, I thought was a little odd that the rear didn’t come up since the new tires were just over a full inch taller, but seems this isn’t the only case. Front came up exactly 2.25” + 0.5”. I adjusted the headlights slightly after because they ran a little high, easy adjustment.

RIDE QUALITY

Before the level kit and tires, this truck rides great, especially for this large of a truck. It was incredible quiet and surprisingly soft. After the level kit and tires, there is a very noticeable stiffness in the front end now. By no means is it too stiff, but coming from how soft the stock truck is, its a much firmer ride. (I have gotten use to it since the initial drive from the shop). I am sure this is a combo of the level kit and tires. Being a firmer ride, I would argue that the truck actually handles turns better now with the firmer setup.

Sound - The level kit I wouldn’t imagine would have any difference in road noise, maybe wind noise as it sits higher, but with the new KO2s, you can hear a little bit of a buzz on the highway over stock (stock tires are incredibly quiet). Most people would not even notice, especially if the music is on.

Acceleration - These new tires (BFG A/T KO2s 275/60/20) are much heavier than the stock Goodyear Wrangler SR-A (275/55/20), and you notice it immediately. Again, nothing you won’t get use to with time, but right after they were put on, accelerating off the line it is noticeable that these tires are in the range of +16lbs per tire. This plays into MPG below.

MPG

Before I was in the range of 17 CIty and 22 Hwy. After the level and tires, I am in the 15 City and 21 Hwy. When I am going just around town in traffic, it can easily be in the 14 mpg range. On the highway, I haven’t noticed that big of a difference each drive is a little different and it’s in the 0-2mpg range. (Don’t have many really flat hwys where I am)

TIRES

Had the stock Goodyear Wrangler SR-A (275/55/20) previously and they are great highway tire, but terrible off road and in bad weather. I wanted to go with a good all terrain tire that I can take off road, use in the snow and still be on an everyday truck. I was originally going to go with the 275/65/20 KO2s but were out of stock and it would take 3 months to arrive, and I was getting a super deal, so I went with what they had in stock, 275/60/20. The shop I went to said there is a small chance the 65s would rub a little with the Pro Comp 2.25” level, so I decided to play it safe, and cheaper with the 60s. (Plus the 65s would be even heavier and higher load rating) They fit VERY easily, not even close to rubbing anywhere. I will probably go with the 65 series when these wear out for a little extra height and the look. So far I have had them on city, hwy, snow and light off road, and they have been great.

What rims do you have?

BBSierra84 · January 27, 2016

What rims do you have?

Stock 2014 GMC Sierra All Terrain rims, 20".

Tim Rasmussen · January 27, 2016

Alright guys.

Got my level/lift installed and have the alignment scheduled for tomorrow. I installed a readylift front 2.25 level along with the replacement 2 inch rear block. All said and done I received 2 1/8 inch lift on the front and a full inch in the rear. So my overall take went from 2 3/4 back to front down to 1 5/8. I occasionally pull an equipment trailer with a utility tractor or similar equipment on it so I don't want to go much under the 1.5 number on my rake.

I do like the look. But all my numbers from above are averaged from the difference from the left vs. right side of my truck. What I don't understand is how my right rear can sit so much higher then the left rear. When putting the tape measure from the wheel well straight down through the center of the hub my rear is nearly 3/4 of an inch different. Right being higher. Before the lift was put in it was only roughly 1/2 inch difference. I am taking my truck to the dealership later this week for some frame coating that has peeled off. So I am going to pick their ears about this dilemma.

Here is a picture of the before after and left/right after. Let me know if you think the left/right is out of what my tolerance should be.

Sent from my iPhone using Tapatalk

Salmons34 · January 27, 2016

Whats the biggest tire anyone has fit on an 18" wheel with the 2" RC level?

tyrich88 · January 27, 2016

Whats the biggest tire anyone has fit on an 18" wheel with the 2" RC level?

Not sure about the biggest but I have a 275/70/18 on mine.

One guy on here has 295/70/18 on his 18" Method wheels.

I think he had to trim a bit though.

Edited January 27, 2016 by tyrich88

cajunjosh · January 27, 2016

2015 Silverado LT 2wd with 2.5" rough country level kit installed. Tires are Cooper Discover SST PRO 295/55/r20 Mud Terrains. Wheels are the Raceline Rampage 20x9 with 0 offset. Trimmed a few inches of the rear fender felt. No rubbing so far. Debating the purchase of a Rough Country 1.25" body lift.

Salmons34 · January 27, 2016

Not sure about the biggest but I have a 275/70/18 on mine.

One guy on here has 295/70/18 on his 18" Method wheels.

I think he had to trim a bit though.

Did you have any rub issues with that size and what tire did you go with as well because some seem to fit better than others in that same size. I'm getting new tires soon and just trying to make sure I won't have any rubbing issues.

tyrich88 · January 27, 2016

Did you have any rub issues with that size and what tire did you go with as well because some seem to fit better than others in that same size. I'm getting new tires soon and just trying to make sure I won't have any rubbing issues.

I have not had any issues whatsoever with my tires.

I got the BFG AT KO2 in 275/70/18 and I absolutely love them. They're great in the snow and mud and everything in between, including the highway.

Here's mine

crporte2 · January 27, 2016

Looks great cajunjosh!! Did you put in the rear blocks from the rough country 2.5" kit or did you just do the front?

Clocked92 · January 27, 2016

Alright guys.

Got my level/lift installed and have the alignment scheduled for tomorrow. I installed a readylift front 2.25 level along with the replacement 2 inch rear block. All said and done I received 2 1/8 inch lift on the front and a full inch in the rear. So my overall take went from 2 3/4 back to front down to 1 5/8. I occasionally pull an equipment trailer with a utility tractor or similar equipment on it so I don't want to go much under the 1.5 number on my rake.

I do like the look. But all my numbers from above are averaged from the difference from the left vs. right side of my truck. What I don't understand is how my right rear can sit so much higher then the left rear. When putting the tape measure from the wheel well straight down through the center of the hub my rear is nearly 3/4 of an inch different. Right being higher. Before the lift was put in it was only roughly 1/2 inch difference. I am taking my truck to the dealership later this week for some frame coating that has peeled off. So I am going to pick their ears about this dilemma.

Here is a picture of the before after and left/right after. Let me know if you think the left/right is out of what my tolerance should be.

Sent from my iPhone using Tapatalk

I don't know why either but the right side of my truck is higher too. Before my level, the right side was 1/2" higher. After the level and alignment, it's slight more than 1/4" higher than the left side. Can't notice it at all but it's just kinda funny.