2014+ Leveling Kits

pdv127 · October 16, 2014

Looks great!! How's the ride with the 305s?

Thanks bro. Your truck is definitely on point. I'll look this other cat up

I'm guessing he's talking about my truck. I have the white Sierra with 305/55s with +14 offset on a 2.5" rough country level. I barely rub at all, it's only at full lock in reverse that it rubs slightly on the sway bar, and it only does it sometimes. It still rides good too, the only thing with the 305s is they are a bit noisy and they are a gas guzzler but Ive been used to it. For my next set of tires I'll stay with the 305s instead of jumping down to the 295s if that helps yall any

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chewy22 · October 16, 2014

For everyone that has a level and bigger tires, what mpg are you getting on the highway? I assume most people on here are not too worried about their gas milage given that we are putting big off road tires on our trucks. I installed a 2.5'' level with 305/55R20 Nitto trail grapplers (33.39x12.60x20 from Nittos website) I also removed the bottom plastic air dam piece or whatever the correct term is, could that play a part in decreasing my fuel economy?

Previously coming from driving a 2008 NNBS sierra with 6'' lift and 35'' tires and the small 4.8l engine with a Black Bear tune i was getting right at 15mpg cruising at 70 and that makes me think my new 2014 should be getting a little better mpg that what i am actually getting right now.

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Your speedo and odometer are off approximately 5.2% with that tall of a tire which throws off the DIC mileage calculator. Hand calc your mileage, DIC mileage x 5.2% divided by gallons used. Or get a hypertech speedo adjuster that updates your computer (speedo/odom) for the new tire size. It is super easy to do. Your tire width/tread and wheel size are all killers on mileage too. 20 rims are heavy. Once I drive my truck more ill post up mileage, I have 275/70 (33.4x11) 18s, and used a hypertech to correct speedo.

pdv127 · October 16, 2014

Your speedo and odometer are off approximately 5.2% with that tall of a tire which throws off the DIC mileage calculator. Hand calc your mileage, DIC mileage x 5.2% divided by gallons used. Or get a hypertech speedo adjuster that updates your computer (speedo/odom) for the new tire size. It is super easy to do. Your tire width/tread and wheel size are all killers on mileage too. 20 rims are heavy. Once I drive my truck more ill post up mileage, I have 275/70 (33.4x11) 18s, and used a hypertech to correct speedo.

Damn dude I'm already taking Calculus 3, I'm sick of math and seeing numbers [emoji23] haha but thanks that helps out. I'm looking into getting another BlackBear tune like my old truck and will just correct the speedo then

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Sicmab · October 16, 2014

I'm guessing he's talking about my truck. I have the white Sierra with 305/55s with +14 offset on a 2.5" rough country level. I barely rub at all, it's only at full lock in reverse that it rubs slightly on the sway bar, and it only does it sometimes. It still rides good too, the only thing with the 305s is they are a bit noisy and they are a gas guzzler but Ive been used to it. For my next set of tires I'll stay with the 305s instead of jumping down to the 295s if that helps yall any

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Thanks bro. That's what I needed to hear. 295's it is.

Sicmab · October 16, 2014

I had mine installed at a shop. They use a ton of grease on the .5 spacer on top...I know this because I went to look inside and my hand was covered in a thick black grease (truck is only 2 weeks old) as far as the popping have you re-torqued the level kit? I drove mine for 300 miles and has the same thing and once they went over the level kit and tighten everything up it went away. I have 600 miles on my lift with no noise. I'll measure tonight but before the new tires i was at 39 inch up front and in rear to to the center wheel well.

I am at no means a mechanic too. So wtf do I know... just stating my experience.

Filtered

He's right about your truck. It does appear to be more "leveled" when compared to others. You didn't install any rear blocks, right?

cccritch · October 16, 2014

I have a 2015 Chevy 1500 Silverado on order and I have been back and forth on tire size. I have been through this thread and I really like everyone's setup. However this is what I have been considering to do on my truck. I know for sure that I am going to go with the Rough Country 2.5" Lift/Leveling kit. I have also decided on the size and model of wheel that I want. I am going to go with the XD Misfit 18" X 9". That wheel has a 0mm offset with a 5" backspace. Those are the knowns now to the unknown. I am having a hard time deciding on tire size. I am like everyone else. I would like the largest possible tire with minimal to no rubbing without trimming. I am open to trimming the inner wheel well that is made out of carpet but I do not want to alter any sheet metal. I would like to try a Toyo Open Country M/T in a 285/70R18 (34" X 11.5"). I don't believe that anyone has tried a tire that size. Let me know what you think.

AZGMCZ71Leveled · October 16, 2014

Yes no rear blocks, and it sits level. 295s have no rub even at full lock. MT'S are a little noisy so expect that but the look is killer! So far I have lost a good 3 mpgs with the MT tires. My problem was I wanted Toyo ATII and and they are back ordered on the 295s.

AZGMCZ71Leveled · October 16, 2014

Yes no rear blocks, and it sits level. 295s have no rub even at full lock. MT'S are a little noisy so expect that but the look is killer! So far I have lost a good 3 mpgs with the MT tires. My problem was I wanted Toyo ATII and and they are back ordered on the 295s.

Sicmab · October 16, 2014

Got it. Thanks again bro!

AZGMCZ71Leveled · October 16, 2014

Just measured the front and rear. Front sits 39 and 1/2 back is just under 40 inches. After driving a good 600 mile the truck settle down some.

Rear

Front

AZGMCZ71Leveled · October 16, 2014

Meant just over 40 for the rear....

chewy22 · October 16, 2014

I have a 2015 Chevy 1500 Silverado on order and I have been back and forth on tire size. I have been through this thread and I really like everyone's setup. However this is what I have been considering to do on my truck. I know for sure that I am going to go with the Rough Country 2.5" Lift/Leveling kit. I have also decided on the size and model of wheel that I want. I am going to go with the XD Misfit 18" X 9". That wheel has a 0mm offset with a 5" backspace. Those are the knowns now to the unknown. I am having a hard time deciding on tire size. I am like everyone else. I would like the largest possible tire with minimal to no rubbing without trimming. I am open to trimming the inner wheel well that is made out of carpet but I do not want to alter any sheet metal. I would like to try a Toyo Open Country M/T in a 285/70R18 (34" X 11.5"). I don't believe that anyone has tried a tire that size. Let me know what you think.

Chevy 1500 - I have the same wheel size and offset/backspacing w/ 275/70R18 (specs 33.4 x 11) duratracs, 2.25 readylift leveling kit front (w/ 1 inch taller blocks in the back). Even though the specs on the tires are 33.4 as it sits with the pressure I'm running they have a ride height of 32.5 (I've confirmed this both with running a chalk line and line of sight measurement). I used that measurement (32.5) in the hypertech speedo calibrator and my speedometer is spot on with a GPS at all speeds. So that gives you a base line. At full lock my tires did touch the back lower corner of the wheel well liner. I pulled the liner back using a screw into the cab mount. Because I run a lot of gravel roads I need mud flaps. I put duraflaps on, both front and rears. The flaps are about a 1/4 to 1/3 inch thick. I created a channel in the flaps for the black plastic things that are on the rear outer edge of the wheel wells so they sight as flush as possible. With just that small thickness of the flaps there was rubbing when turning on a slight incline/decline. A lot of modification to the front flaps to get rid of the rub for normal driving. I still get a small amount of rubbing when the tires are stuffed and turned, all on the flap. So long story short, there is not much clearance. Maybe the 1/4" height difference in the leveling kits will make a big enough difference for a 34x11.5 tire but it will be damn close and I bet you'll have rubbing issues with a 0 offset wheel.

Edited October 16, 2014 by chewy22

T-Town-Z · October 16, 2014

I have a 2015 Chevy 1500 Silverado on order and I have been back and forth on tire size. I have been through this thread and I really like everyone's setup. However this is what I have been considering to do on my truck. I know for sure that I am going to go with the Rough Country 2.5" Lift/Leveling kit. I have also decided on the size and model of wheel that I want. I am going to go with the XD Misfit 18" X 9". That wheel has a 0mm offset with a 5" backspace. Those are the knowns now to the unknown. I am having a hard time deciding on tire size. I am like everyone else. I would like the largest possible tire with minimal to no rubbing without trimming. I am open to trimming the inner wheel well that is made out of carpet but I do not want to alter any sheet metal. I would like to try a Toyo Open Country M/T in a 285/70R18 (34" X 11.5"). I don't believe that anyone has tried a tire that size. Let me know what you think.

I just installed Bridgestone Dueler A/T's in LT275-65-20 on my truck. On paper they call them out to be 34.1" tall by 11" in width. These are on stock 20" rims and fit with a 2" lift, with just minor rubbing of the wheelwell liner. I zip-tied the liner back, in the area where it rubbed, and have no other problems with that size combo.

chewy22 · October 16, 2014

I just installed Bridgestone Dueler A/T's in LT275-65-20 on my truck. On paper they call them out to be 34.1" tall by 11" in width. These are on stock 20" rims and fit with a 2" lift, with just minor rubbing of the wheelwell liner. I zip-tied the liner back, in the area where it rubbed, and have no other problems with that size combo.

That is a great comparison and perspective T-Town. The problem is the wheel offset 0 vs the stock +24. The outer corner of the tire, when turned, is what hits my mud flap. I don't doubt 34s on a stock offset wheels clear all day long. If I had the same tire on my stock rims it would not come close to hitting. Have to really think about the offset when looking at aftermarket wheels.

Edited October 16, 2014 by chewy22

cccritch · October 17, 2014

Thanks guys for the great feedback. I really would like to try the 285/70R18 but I will probably wuss out and go with the 285/65R18. I really like the looks of the XD Misfit but they only make the 18x9 in the 0mm offset. Wish XD had a few more options in the offset. However to go with the 285/65R18 I will have to run the Nitto Trail Grappler.