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2021 Denali HD Fabtech Lift and 37s
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177 Posts
Discussion Starter · #1 ·
I picked up my 21 Denali HD 1 month ago today 2/1. I traded in my 2020 for the 21 so I was able to move quite a bit of the stuff over. Here is my progress so far. I’m going to make it several posts because I’m on my phone.
I had so much going on this is the only photo I have from getting her. We swapped the S&B CAI off the 20 onto the 21 the day I picked her up.
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2021 Denali HD Fabtech Lift and 37s
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177 Posts
Discussion Starter · #2 ·
After getting her home I did a full detail on the paint. Cleaner wax, polish, ceramic wax and sealant.
I also swapped over the tow shackles I had put on the 20. We boat on a pretty rustic lake east of Denver and beach launch with tractors. Stuff is always getting stuck out there so that’s why I upgraded to the shackles.
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2021 Denali HD Fabtech Lift and 37s
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177 Posts
Discussion Starter · #3 ·
Tint was next up along with the bed cover which I also pulled off my 20. I went with full ceramic tint (autobahn i3) and it has been totally worth it. The bed cover is a backflip MX4.
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2021 Denali HD Fabtech Lift and 37s
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177 Posts
Discussion Starter · #4 ·
Last week she went into the shop for a Fabtech 6” lift with fox shocks. Unfortunately the front shocks are on back order so it still has the factory Rancho shocks up front. After the lift was on and we took some measurements we decided it needs a bigger block for the rear. Block and front shocks are supposed to go on next week. Right after the lift it had horrible lean. I cut the valance and dropped the front 1” and it’s now at 30” from the hub to the bottom of the fender up front and 28.5” in the rear. New block is 2” bigger so that will fix my Cali Lean. I also had the light up factory emblem and black rear emblems installed. Oh I put my Arkon 20x9s with 37x12.50 BFG KOs on it as well. I think that’s about it for month 1 haha.
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2005 Chevy Silverado 2500HD Extended Cab
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16 Posts
Very nice looking trucks. Do you notice a big difference between the 20 & 21 trucks?
 

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2021 Denali HD Fabtech Lift and 37s
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177 Posts
Discussion Starter · #7 ·
There is not a huge difference between the 2. So far wireless Carplay has been awesome. I do notice that my 20 got better gas mileage. I am waiting to see if the 21 gets better as it gets more miles. Up to almost 2,500 haha.
 

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2021 Denali HD Fabtech Lift and 37s
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177 Posts
Discussion Starter · #8 ·
I got my squat issues fixed by putting a bigger block in the rear. I ordered factory GMC color matched fenders as well but they’re on back order until 4/30. Hoping they show up ship sooner.
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It’s definitely not squatting anymore.


Sent from my iPhone using Tapatalk
 

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2021 Denali HD Fabtech Lift and 37s
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177 Posts
Discussion Starter · #11 ·
Finally got some good weather in Colorado and knocked out a couple things. Tinted my fender marker lights and wrapped the duramax badges.
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2021 Denali HD Fabtech Lift and 37s
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177 Posts
Discussion Starter · #12 ·
Also snapped a picture of my truck next to my buddy’s F350 with a procomp 6” lift. Really shows how big these new GMC’s are. Both trucks have 6” lifts with 37s.
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2021 Denali HD Fabtech Lift and 37s
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177 Posts
Discussion Starter · #13 ·
The weather finally got nice (for a few days) so I installed my American Forces. I ordered these guys in august and it took 17 weeks to get them which was November. I have been staring at them ever since just waiting for nice weather. Once it quits raining I’ll get better pictures.
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Looks good


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