2017 Suburban LT Mods Tracker

[Tylus]

This is a thread to track everything I've doing and/or have done to my new to me 2017 Suburban LT. Comments/Suggestions are welcome.

Drivetrain:

1. Change fluids
2. Magnaflow #13259 Muffler - Done
3. Leave alone otherwise
​

Suspension:

1. 2" Leveling Kit
2. 265/70R18 General Grabber AT2 (Load Range E) - Done
​

Interior:

1. Maglite Mount - Done
​

Exterior:

1. 2014+ Silverado Tow Mirrors - Done
2. Bull Bar - Done
3. Backup Lights
4. Foglights - Done
5. Cut front dam down 2"
6. Driving lights on Bull Bar
​

Repairs:

1. Fix Pass rear seat pull cord
​

More will occur to me. But for now that's a decent list.

 

[Tylus]

Magnaflow #13259 Muffler
3" ID tips
18" body length
24" tip to tip

OEM Muffler is 24" long as well. I had 6" of 3" ID pipe laying around from another project. So used it to install. Left the stupid flapper valve in. It will be getting cut off soon. Can hear it squeaking in V-4 mode

Really like this muffler. It lets you know there is a V-8 under the hood. But it isn't annoying with windows up. Well worth $75

Side note, the OEM pipe is 2.75" OD. Not 3" OD as I've read in previous posts here on the site.

 

[Tylus]

2014+ Silverado Style Tow Mirrors

These are NICE! The bolt right up, electronics clip right in. I have to go back and wire in the running lights and turn signals. The door is wired from factory. But the wire harness in body doesn't have the pin-outs.

I'll get it figured out and post a solution

 

[Tylus]

265/70R18 General Grabber AT2 Load E

Great tire. It's a 33" tire vs the OEM 31.8" tire. Zero rub, excellent dry, rain, and snow traction. Will buy again when these are old. Currently 17000 miles on them and they're going strong

 

[Tylus]

Fog Lights

Came with harness and a switch. I instead wired to the headlight low beams using a relay. So anytime the low beams come on, these come on. Pretty nice. Had same set on my Tahoe for 4yrs, good quality.

The only indication they aren't OEM is the fuse at the battery. I used a stud off the battery to install. Made for nice/clean setup.

Included is the wire diagram for headlights

 

[Tylus]

FYI:

If you need any data about the Tahoe/Suburban. Here is the official Upfitter files from Chevrolet.

Has full wiring diagrams and specifications for damn near everything.

https://www.gmupfitter.com/pdflists/view/39

 

[Tylus]

Mag-lite Mount in the rear cargo area. Was initially installed in the recess on drivers side of the center console. however hit my leg and was annoying.

normally I put these on the seat belt retractor (fords). but the Burb/Tahoe doesn't have room to close the door when you put it there.

this works nicely however

 

[Tylus]

Love the tow mirror look

 

[Tylus]

Fixed my fog lights. Had a bulb go bad. So some LED H8 to the rescue

Will be swapping to LED heads at some point

 

[Tylus]

Installed some LED low beams. Waiting until dark out to check new beam. But in daylight they made me see stars lol

 

[Tylus]

Ranch Hand awesomeness. Worth every penny

 

[gat0r]

i like the ranch hand over the bull bar

 

[Tylus]

i like the ranch hand over the bull bar

Absolutely. Lol

The bull bar was to keep New England drivers off my bumper in parking lots. I can’t tell you the number of times I had to reset the position because some ****** bumped it

 

[gat0r]

doesnt surprise me
there are so many fools on the road.

 

[Tiki]

How much clearance do you have on your tire at full turn (UCA)?

 

[Tylus]

265/70R18 General Grabber AT/2 tires

since I kept the same width, it's the same clearance to UCA as the original 265/65R18 tires. On paper the new size is 0.5" taller. But the tires I bought are E rated and super deep tread. Ended up over 1" taller overall. Speedo is off by 2 mph at highway speeds

 

[YukonXLMan]

265/70R18 General Grabber AT/2 tires

since I kept the same width, it's the same clearance to UCA as the original 265/65R18 tires. On paper the new size is 0.5" taller. But the tires I bought are E rated and super deep tread. Ended up over 1" taller overall. Speedo is off by 2 mph at highway speeds

Would you buy them again? How is the road noise at highway speed? Any howling? MPG take a hit?

 

[Tylus]

Would you buy them again? How is the road noise at highway speed? Any howling? MPG take a hit?

They do have a “hum” at 60+ mph when newer. As they wear it quiets down significantly . It isn’t loud at all. Windows up and can’t hear at all. I’ve always ran Mud tires, so these are quite nice.

I may have taken a mpg hit. But she still pulls 23-24 mpg on the long trips. City is somewhere around 15 mpg. Not shabby

I will buy them again. Here they are with about 25k miles of wear. My only complaint is they pick up pea gravel that gets stuck in the treads. We drive 99% paved though, so not really a detractor. But could be if I lived down a dirt/gravel road.

Here is a shot of the UCA clearance

 

[YukonXLMan]

Awesome. Thanks for the info!

 

[Tylus]

Added a camera to the ranch hand. Don’t want to hit anything

For now am using my driving camera to view. I am researching a dash monitor setup. Can’t find something I’m happy with yet