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21 Silverado custom add fox 2.0 coil overs

Josh42089

By Josh42089
in Modifications, Wheels & Tires

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Josh42089 Enthusiast

Josh42089

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Hi, I have a 21 Silverado custom 4x4 with the 5.3. I’m planning on changing the suspension with the fox 2.0 performance 2” levelling coil overs for the front and the struts for the rear. 
Wanted to see if anyone had experience with this setup and anything else I should look at? I’m going for the level look but I also I want to have a bit of rake still in the back as I do load it up from time to time.In the winter I put a couple hundred pounds of sand bags in the back and don’t want to drive around nose high. 
Will I need to look at upper control arms or will I be fine with stock? And will I need a small rear block to achieve a bit or take? Thanks for any input. 

Gangly Senior Enthusiast

Gangly

Posted
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As long as you stay around 2" of lift you wont need upper control arms and UCA's are generally looked at once you go 3.5" or greater of lift on stock ride height trucks.  You'll be fine with your 2" of lift, nothing to worry about at all.   I installed a 2" Eibach lift and I put a 1.5" block in the back which gave me around .5" of rake if I remember correctly.  If your looking to not sag with weight in the back, I would go with 2" block in the rear just to be safe.

Josh42089 Enthusiast

Josh42089

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Do you recall which 1.5” block you went with? Was it tapered or square? Some I see are one of the other. Certain threads I have read said they got vibrations from changing the angles with squared vs tapered. Any of those issues or issues with 4wd after doing the lift? I like to use the auto 4wd on snow covered roads in the winter.

Gangly Senior Enthusiast

Gangly

Posted
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Rough Country if I remember correctly, not sure on the taper question and I have had no driveline issues.  No issues at all in 4WD at any point in time and I use it quite often.  

John813 Enthusiast

John813

Posted
Posted

I've been pondering a small lift as well. 

Was looking at the 2.0's or even 2.5's or the trail boss lift but I really hate the OEM Ranchos so not sure I would enjoy the ride with the trail boss lift. 

 

One thing I noticed is that the trail boss lift is a 2" all around lift that still uses the OEM UCAs. So, you would think a 2" lift using another shock should be fine. 

But I like to play it safe and just get a beefier UCA anyways, but the next issue is finding one that would work with OEM wheel offsets for short term use. I think a few said the Cognito one works but it's very close to the tire so they ended up with 3/8" spacers. 

Gangly Senior Enthusiast

Gangly

Posted
Posted

The Trail Boss UCA and stock UCA are the same, so any 2" suspension lift will be perfectly fine.  The actual lifting portion of the TB kit is a longer shock and added rear blocks, that's it.  The stock UCA is more than adequate for your needs and will require zero maintenance over the life of the component while aftermarket UCA's will require maintenance.  I'm not against aftermarket UCA's since I'll be installing some in the future.  However, for what you are describing that you want to do, UCA's are definitely not needed and will only increase your maintenance and costs with no return in additional capability or longevity.

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Josh42089 Enthusiast

Josh42089

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Already ordered the fox coil overs and rear shocks. Pretty steep I’d say for they setup for a 2” lift but hoping the quality makes up for it. I was thinking for some reason the coil overs came in a pair when I ordered it but they don’t so I had to order another. In Canada. Was 670 a piece for the coil overs plus 250 each for the rears lol. I ordered some 1.5” blocks for the rear. Was tough because I could get the same rough country setup for less and a grand but hoping the quality of fox will make up for the price cost. Usually what I see BDS pair up with for their lifts. 

Josh42089 Enthusiast

Josh42089

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4 hours ago, f8l vnm said:

Get bilstiens , save some money and never look back. 

Main reason I didn’t go with bilstein was I heard they rust rather quick. In Canada that would be a definite problem. So they would look like crap. Second for the front coil overs they reuse stock component for assembly. Easier with the fox plus they are aluminum so shouldn’t rust 

Mossyoakglock Senior Enthusiast

Mossyoakglock

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One thing to consider with the Chevrolet 2" lift is you don't just get new struts and a block. You also get longer CVs. Plus it retains your warranty if that matters.

Josh42089 Enthusiast

Josh42089

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8 hours ago, Mossyoakglock said:

One thing to consider with the Chevrolet 2" lift is you don't just get new struts and a block. You also get longer CVs. Plus it retains your warranty if that matters.

Warranty is a good thing but wanted the performance of the fox shocks. I was looking at the gm lift and it has a few extra pieces that most people don’t mention needing when doing a level. It didn’t list everything that came with it but from what I could see in then picture aside from shocks and blocks was sway bar drop brackets, cvs and mentioned a power steering recalibration. Not sure if I should look into getting a sway bar drop bracket and inquire about the power steering recalibration? Most people don’t mention that as a need when just going up a couple inches. 

MooseHoose Enthusiast

MooseHoose

Posted
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I have the Fox 2.0 coilovers and shocks on my 2020 RST Z71. The ride is great both on and offroad. Very smooth on the freeway and much less chatter on fire roads. I got about 2.25" of difference measured at the fender. The parking lot is not level so it looks like a bigger difference. After about 1000 miles it was measuring right at 2".

 

Stock: 

PXL_20211228_192339848.thumb.jpg.f0080d159372eacd4c18aee4d7a40139.jpg

 

Fox 2.0 coilovers:

 

PXL_20211229_000116876_MP.thumb.jpg.b68abab14638566bbdac8fc35ad1a515.jpg

Josh42089 Enthusiast

Josh42089

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3 hours ago, MooseHoose said:

Rear shock

 

PXL_20211228_205711900_MP.thumb.jpg.dd722a1957d323bb602cbe4c3e0a73bd.jpg

Looks good. Do you have any blocks in the rear? Mine has none so I ordered a set of 1.5” for a bit of rake. Is it even front and back without one if so? Also I installed my rear shocks body down. I liked the look better. I had read online it could go either way. Did you hear that?

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