Sound dampening

Hey All - my 2018 crew max w/all terrain tires has a terribly noisy cabin. I'm going to do some small upgrades to the sound system (replace stock amp with alpine booster everyone talks about and a powered sub) but also thinking about adding sound dampening.

Has anyone done theirs in stages - floor and then doors or vice versa? Curious to see which had a bigger impact on cabin noise. Also curious for anyone that's done floors, how much time did it take. Taking out all the seats and carpet is a little daunting so appreciate any input on ease/difficulty of that process.

And finally, there are a ton of products and price ranges out there. Always appreciate any real world opinions on products.

Thanks in advance!

 

All terrain tires should not sound that bad. I have 295 on 20s Nitto Grapplers. I did all 4 doors and back. Still need to do floor and roof. I use Stinger stealth. No smell up to now.

 

I used Siless 120mil butyl deadener and 157mil liner on my roof, pillars, and back wall. It gave me a very noticeable decrease in wind noise and roof vibration from my roof rack. I also noticed reduced road noise from the back and an increase in the quality of the sound from my Kicker 8". I plan to eventually do the floor and doors.
It does take some time and dedication to remove the interior, but it is worth it in the end. Remember that while you are doing this, you will be working with electrical systems. I always suggest disconnecting the battery when messing with wiring even when it is just unplugging and covering wiring.
Adding deadener and liner to the roof not only reduces noise, it also reduces heat.

I tried Amazon Basics deadener, but found that it did not stick as well as the Siless.
Remember to thoroughly degrease and clean all points of contact. Good prep will make for less headache.

 

What tires and size are you running? Rotate them every 5k miles?

Yes people do sound deadening in stages or all at once, whatever works. There are already threads with pics and info for what you are trying to do, some very detailed write ups of the process.

 

After I proactively treated Tundra's then new frame with Noxudol-1600, Tundra turned out as a quietest vehicle in our fleet, which back then included a very quiet Volvo XC60 in Platinum trim. Tundra + General Grabber A/TX is still quieter than my old Volvo XC70 rolling on a very quiet Vredestein Quatrac tires, and wife's new Sequoia TRD PRO with Michelin LTX2. Don't mind the exhaust, it is still there, and is not very obtrusive, but Noxudol did a great job cancelling those road noises.

Going to Noxudol Sequoia some time later in summer as well.

 

Think of the cab as a bathtub. For road noise, everything below the glass needs to be treated. Firewall, doors (inside and out), rear wall (inside and out), especially the floors and transmission tunnel. Often overlooked are the pillar points too. They are where the firewall and front door jamb meet.

Anything you do will help, but the more you do, the better. If you want to do it in stages you can strip the interior and put the seats in without the carpet until you are done. I found the rear floor and back wall were the biggest sources of road noise from the rear tires. But more critical is to address the lower firewall, floors and transmission tunnel first, they will give you an immediate attenuation of noise up front. Then do the front doors then rear doors. I also treated all the plastic panels and trim pieces throughout the truck, this surprisingly made a big difference in overall "deadness" of the panels.
I use Cascade audio engineering products throughout and my truck is a tomb of silence.

https://cascadeaudio.com/car_noise_control/index.htm

Warning expensive! Lol


But, you have to do the work, and there's quite a bit to do. It's not hard, but tedious. It's easier when everything is apart so don't try and lift the carpet and tuck some shit under it. Take 30min and remove seats to gain access and allow proper treatment of the surface before application as @Windsor stated, and to disconnect and be careful with wiring, as he said too