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Leveling Kit for GMC Sierra 2010.. Tire Questions..

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Leveling Kit for GMC Sierra 2010.. Tire Questions..

Old 06-05-2012, 11:34 AM
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Default Leveling Kit for GMC Sierra 2010.. Tire Questions..

I am putting a leveling kit on my 2010 GMC sierra 1500.

It is going to be 3.5" in front and 2" in the rear. I was looking at putting some terra grapplers on the stock 20" chrome rims that the truck came with. Any suggestions on tire sizes? Should I do 295/55/20? or like a 305/55 or 60/ 20?

Thanks in advance...
Old 06-08-2012, 08:52 AM
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I would go 305 it will make the truck look awesome.
Old 06-08-2012, 11:34 AM
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60 or 55's
Old 06-08-2012, 11:37 AM
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I'm getting this setup in the next few months. QuickLIFT Loaded
Old 06-08-2012, 11:55 PM
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2WD or 4WD ?
Old 06-09-2012, 07:40 AM
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Surprisingly, there isn't much room in the front fenderwell when the wheel is turned. I went up one size (255 t0 265/75/16) and they just barely clear on my 2007 2500hd.
Old 06-09-2012, 08:24 AM
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Be careful with your upper control arm angle and your CV axle angle with that 3.5" front lift.
Old 06-10-2012, 05:29 PM
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Its a 2 wd.. But my truck came with the stock 20's
Old 09-17-2012, 03:29 PM
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I put the Rancho Quicklift kit on this weekend and love the ride. I'm going with 285/70/17 Goodyear DuraTracs. Ends up being 33" tires with no need to trim plastic.
Old 09-18-2012, 07:04 AM
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285/70/17 are 33's??? Thats weird, because I just put 305/55/20 on my rims and they said they were equivalent to 33's? Hmmm

I have added a couple pics.

I put on 305/55/20 Nitto Terra Grapplers with a 3.5 inch lift in the front and 2 inch lift in the back.
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Old 09-18-2012, 10:30 AM
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Looks great! You are right, 285/70/17 are at 32.8". Your tires are a shade over 33"
Old 09-18-2012, 11:42 AM
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Originally Posted by capytan View Post
I put the Rancho Quicklift kit on this weekend and love the ride. I'm going with 285/70/17 Goodyear DuraTracs. Ends up being 33" tires with no need to trim plastic.
Make sure to open up the adjustment dial and put some grease in there. I had Rancho 9000Xl adjustable shocks on my last truck and the adjustment valves started to rust after the first winter. No issues after I took them apart and put some grease behind the red dials.
Old 09-18-2012, 11:50 AM
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Originally Posted by Cousin Eddie View Post
Make sure to open up the adjustment dial and put some grease in there. I had Rancho 9000Xl adjustable shocks on my last truck and the adjustment valves started to rust after the first winter. No issues after I took them apart and put some grease behind the red dials.
Thanks!
Old 09-18-2012, 11:59 AM
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Better check the designed operating angle of your CV joint. My truck started eating them up because they were operating at max angle all the time. Go four wheeling and exceed the angle while off camber and you may find yourself in a 2wd truck in a 4wd situation.
Old 09-18-2012, 12:19 PM
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I just bought a 2012 F150 Crew Cab, 4x4 on Saturday, 9/15, and it came from the dealer with a level kit on the front and a 1" "block" on the rear...it has 305/55/20's and I love the look. BGF All Terrain Ko's......Good luck
Old 09-18-2012, 12:20 PM
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Originally Posted by Teasem View Post
I am putting a leveling kit on my 2010 GMC sierra 1500.

It is going to be 3.5" in front and 2" in the rear. I was looking at putting some terra grapplers on the stock 20" chrome rims that the truck came with. Any suggestions on tire sizes? Should I do 295/55/20? or like a 305/55 or 60/ 20?

Thanks in advance...
305 60 20 is my vote. Remember though, you are still going to be down some in the front. It is my understanding that 2.25" is where you need to be in order to "level" a late model GM truck.

Here is mine with 2.25 front leveling kit, and 12 lbs of pressure in the firestone air bags, on 305 45 22.
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Old 09-18-2012, 12:26 PM
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Tire 1 - 285/70R17
Overall Diameter: 32.70 in 830.58 mm

Tire 2 - 305/55R20
Overall Diameter: 33.20 in 843.28 mm


You can use the compare tool here

http://www.1010tires.com/tiresizecalculator.asp
Old 09-18-2012, 12:32 PM
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Originally Posted by demjjm View Post
305 60 20 is my vote. Remember though, you are still going to be down some in the front. It is my understanding that 2.25" is where you need to be in order to "level" a late model GM truck.

Here is mine with 2.25 front leveling kit, and 12 lbs of pressure in the firestone air bags, on 305 45 22.
It depends if your going to keep the stock 1" block in the rear. So with a 3.5" in the front and a 2" in the back.. Plus the stock 1" block... I am still about an inch higher in the rear.

Good lookin truck!!

But you are correct, if you just want to put a leveling kit in the front, you would just need a 2.25.

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