The Adventures of Sylvester, the 2018 Suburban 3500 HD

[Walkerfever]

I purchased a blue Denali cluster, plus the HUD display, new eyebrow panel, HUD switch panel and adapter harnesses from another member here. He used them in his Tahoe for a year and then pulled them before he sold it. I'll need to get the cluster programmed to my VIN, which I can have done through White Automotive unless anyone knows a DIY method through HPTuners or an MVI2 interface. I know I'll eventually need a HUD windshield, but there are some workarounds I can try until I need a new windshield. The original is still like new so it would be a shame to replace it.

Let me know if you run into any issues with the swap, I just finished it on mine. The windshield thing isn't so bad, I got used to it in a week or so. You'll need to trim the defrost trim panel, that's really the only thing you'd have to do other than plug and play. I ordered my cluster from WAI, so I don't have any input on the programming, sorry.

 

[Geotrash]

Let me know if you run into any issues with the swap, I just finished it on mine. The windshield thing isn't so bad, I got used to it in a week or so. You'll need to trim the defrost trim panel, that's really the only thing you'd have to do other than plug and play. I ordered my cluster from WAI, so I don't have any input on the programming, sorry.

Awesome! Thank you for the tips and willingness to assist along the way. I ordered a small piece of reflective material designed for a HUD that adheres to the inside of the windshield. Might be a waste of money and plastic but figured it was worth a try. How long did it take you to complete the job?

 

[Walkerfever]

Awesome! Thank you for the tips and willingness to assist along the way. I ordered a small piece of reflective material designed for a HUD that adheres to the inside of the windshield. Might be a waste of money and plastic but figured it was worth a try. How long did it take you to complete the job?

I did the cluster and HUD separately, so hard to say. Nothing was overly difficult, the harness makes things a breeze for the most part. Maybe an hour or two total? I did have to hunt down a nut and screw to mount the HUD unit, and I think I had to put a block of rubber on the side of the heatsink to level it up and keep vibrations down. I need to design something and 3d print it to fit around the heatsink fin that'll space it out like it needs. Let me know if you run into that and I'll do some measuring and printing.

 

[Geotrash]

I did the cluster and HUD separately, so hard to say. Nothing was overly difficult, the harness makes things a breeze for the most part. Maybe an hour or two total? I did have to hunt down a nut and screw to mount the HUD unit, and I think I had to put a block of rubber on the side of the heatsink to level it up and keep vibrations down. I need to design something and 3d print it to fit around the heatsink fin that'll space it out like it needs. Let me know if you run into that and I'll do some measuring and printing.

Thank you, will do!

 

[B-train]

Looks awesome! I'm super jelly.....

What kind of mpg does that thing get? Have different tires made any improvement over what you ran before?

 

[Geotrash]

Looks awesome! I'm super jelly.....

What kind of mpg does that thing get? Have different tires made any improvement over what you ran before?

Thank you! I felt lucky AF to be in the position to buy it. I come from humble roots.

Hard to say on the mpg because we only use it for towing our camper. The rest of the time it just sits in the garage with a battery maintainer being driven every 2 weeks or so to keep everything moving and happy. That said, when I drove home from where I bought it in Maryland, it was mostly highway (I-95) and I averaged 19 doing the speed limit (no license plates, didn't want to draw any unwanted attention besides looking like secret service )



When towing our 7500 lb camper, I'm averaging between 8-9 on the flats, and 7-8 in the hills. This picture was taken after driving through the mountains of NC last Labor Day with 5 people + dog + camper. Note that the gas gauge flaked out and went to E for about 200 miles, but the fuel mileage kept computing normally so I had plenty left when I stopped for gas. Hasn't flaked out before or since: