GM 2 Inch Lift Kit

[Dare Wade]

What is the electronic steering calibration GM says we need? 

Does it vary on tire size?

[lapoolboy]

15 minutes ago, Dare Wade said:

What is the electronic steering calibration GM says we need? 

Does it vary on tire size?

Just what it says, it calibrates the electronic power steering to compensate for the higher ride height.  It is not tire-specific.  They also perform a calibration on the forward-facing camera.

[Dare Wade]

For everyone who got a lift which did not include a calibration, how do you find the steering to be affected?

[lapoolboy]

1 hour ago, Dare Wade said:

For everyone who got a lift which did not include a calibration, how do you find the steering to be affected?

Why would you not get the calibrations?  They are included in the cost of the kit.

[MeximusPrime]

3 hours ago, J_Blackbird said:

Thank you for these before/after photos.  It looks great IMO.  I am looking to do the same on my Elevation.  I got a response from one local dealer who says it'll be $900 to install...does that seem like a fair price?

Thank you! Is that price with parts or just the install portion? If just the install then you can definitely do better.

[J_Blackbird]

Thank you! Is that price with parts or just the install portion? If just the install then you can definitely do better.

Yes, that was the dealer install option on the GMC Accessories website. I’m going to call a couple shops to see if they can do better. Thanks for the reply!

[3.0]

I used a bilstein 2.5 strut in the front and a 0-4 inch rough country and 2" block in the back and got a sold 2.25 inches all around.It is a noticeable difference in ride quality especially on the bigger bumps. I was looking at the southern cal coil over setups which are nice but they are not made for northern climate and just won't hold up to road salt & mud. Not only that but they require regular service which in Canada costs more than the 1 time cost on the bilsteins. To all those going higher than 2 -21/2" good luck as every mechanic I have talked to says the long term costs will get you ie ball joints & cv angles and drive shaft angles (unless you start putting in drop brackets). All in I was just over a grand Canadian and say it was a great buy. The other thing to watch for on a taller lift is the fuel lines on the 3.0 duramax as it's not good for them. Just my .02$

[Dare Wade]

12 hours ago, lapoolboy said:

Why would you not get the calibrations?  They are included in the cost of the kit.

I've never had an independent front 4x4, so I never gave a lot of thought to the way steering is affected through travel  at a range out side design. 

I haven't seen a lot of requirement for recalibration on the higher lifts. I would think this is because the control arms in higher lift kits correct the angle.  Is it angle or added torque from the longer "lever arm" that it corrects for? 

If its angle, then how does the electric steering do under more extreme articulation? 

What does the calibration correct? Just the baseline angle sensors so the comp doesn't read turning input that doesn't exist?

Why not use a dropped pittman and reinforced or braced box?

[grtlnd1]

Just had the 2" factory lift installed on my 20 Sierra Elevation, part number 84993582. Got the kit for $980 on sale from GM Partsexperts and got it installed for $513 + tax ($408 for the install and $105 for the wheel alignment) at my local GM dealer. For some reason they were cheap compared to other dealers I called who were quoting between $800 and $750. They did all the calibration and computer updates. The only thing I wish they included was the headlight adjustment but that's easy enough to do myself.

 

I love it, looks just like an AT4 from the outside, high enough to look more aggressive but not outrageous. Ride is comfortable, a little stiffer but may just need to settle.  Factory warranty is still intact and I kept the old parts JUST in case I want it back to factory.

Edited December 11, 2021 by grtlnd1

[Gmoeller]

Those with a stock AT4. What are y’all’s stock wheel well height stock, and/or what are your  wheel well heights with your leveling kit? Front and rears, please. 

I forgot to measure before installing Icon leveling kit.

 

I have an AT4.  I installed Icon leveling kit, UCA’s and rear Icon shocks.

After 1000 mile break-in, 4 Wheel Parts did final adjustment, after “settling”.

 

My rear height is 40”, and my front height is 41” (left) and 40 3/4 (right).

It seems my front right tire is already getting excess wear on outer edge of tire.

Also, truck is NOT happy driving in AWD upon acceleration since the lift.

 

installed at 4 wheel Parts.

 

 

[Transient]

On 12/11/2021 at 5:08 PM, Gmoeller said:

Those with a stock AT4. What are y’all’s stock wheel well height stock, and/or what are your  wheel well heights with your leveling kit? Front and rears, please. 

I forgot to measure before installing Icon leveling kit.

 

I have an AT4.  I installed Icon leveling kit, UCA’s and rear Icon shocks.

After 1000 mile break-in, 4 Wheel Parts did final adjustment, after “settling”.

 

My rear height is 40”, and my front height is 41” (left) and 40 3/4 (right).

It seems my front right tire is already getting excess wear on outer edge of tire.

Also, truck is NOT happy driving in AWD upon acceleration since the lift.

 

installed at 4 wheel Parts.

 

 

Sounds like you may need an alignment.  Also, the owners manual tells you the AWB setting shouldn't be used full time.  It's meant for when the road condition could be slippery are loose. 

[Gangly]

On 1/31/2021 at 10:49 AM, Dare Wade said:

For everyone who got a lift which did not include a calibration, how do you find the steering to be affected?

Zero affect.

[Gangly]

On 1/31/2021 at 11:42 AM, lapoolboy said:

Why would you not get the calibrations?  They are included in the cost of the kit.

I think he is referring to those who got an aftermarket lift where no steering "calibration" is offered.

[Gmoeller]

10 hours ago, Transient said:

Sounds like you may need an alignment.  Also, the owners manual tells you the AWB setting shouldn't be used full time.  It's meant for when the road condition could be slippery are loose. 

I just had an alignment (my 2nd) after the 1000 mile break-in service of the Icon suspension leveling kit install. I noticed wear on the tire after the 2nd alignment….and only 200 miles of driving.

i think they raised the front 4”+.  I think it creates bad angles and even a perfect alignment won’t fix that.

Going back to 4 wheel parts to lower the front an inch, which will make my truck level.

 

And thank you for the info on the AWD mode. I did not see that.  Thank you much!!!!!!

 

[Transient]

6 hours ago, Gmoeller said:

I just had an alignment (my 2nd) after the 1000 mile break-in service of the Icon suspension leveling kit install. I noticed wear on the tire after the 2nd alignment….and only 200 miles of driving.

i think they raised the front 4”+.  I think it creates bad angles and even a perfect alignment won’t fix that.

Going back to 4 wheel parts to lower the front an inch, which will make my truck level.

 

And thank you for the info on the AWD mode. I did not see that.  Thank you much!!!!!!

 

Your welcome.  Not using it full time will increase mpg and decrease wear on drivetrain.