2016 TRD pro rough ride on road

Hi guys,
Tried searching the forums but not seen any specific answer.
Title says it all, bought truck used, 100k miles. Unsure of previous owner use.
Tires Nitto Trail grappler 285/70 R18, fairly worn.
PSI 37s all around (lowered it from 40s to help)
Wheel stock 18" TRD pro
No rattling sounds or bed bounce, just harsh bumpy ride over uneven roads, pot holes etc.
I believe the suspension is fully stock for the trim, with TRD Pro Bilstein Shocks With Remote Reservoirs, not the Fox ones.
I have installed TRD rear sway bars, but ride was similar even before (knew it might worsen though but personally didn't notice any difference just better handling)
Is this typical for these shocks/suspension? Granted this is my first foray into full-sized trucks, coming from RAV4 and Odyssey so no experience with how a full sized truck rides. Based on research, I thought that the TRD Pro suspension should have had better on road ride quality compared to the TRD off road and other Tundra versions (described as "Cadillac-like") which was also why I looked for and purchased the trim.
If not, given the mileage, is this something that needs to be adjusted/rebuilt/replaced?
Thank you in advance!

 

Welcome to the forum. I’ll start by saying I’m not a suspension expert but I do own both a tundra and an odyssey. For sure they have completely different approaches to suspension and I’m guessing that is part of what you’re experiencing. Secondly, you state that the tires are worn… I’d start with replacing them. It can be surprising how much difference a set of fresh tires can help.

 

Thanks! Glad to be here, excellent resource for me.
Truth be told, I do expect trucks to be different compared to my previous vehicles, and did not purchase for ride quality but for utility. However, I had this notion (wrong?) that the TRD pro would have better ride quality. And no, I would not consider a RAM. I am just looking to see if I can improve the ride experience even just a little bit, but the issue is definitely not a biggie. Heck I still prefer driving it often than our Odyssey despite the bumpy ride and gas hit.
Tires are I'd say 30-50%, planning on changing it maybe early next year, possibly with the stock Michelins since I will rarely do off road.

 

Dude it’s the 37” mud tires. If you came from a Honda odyssey and RAV4 do you need mud tires and 37” for clearance? How much off-roading? If not I’d immediately replace with 305/55/18 (33s). Going back to the OEM Michelins would be best ride for comfort on pavement. I have run plenty of mud tires: Toyo MT Mickey Thompson baja mt, BFG KM2 and KM3, never trail grapplers but always heard those are loud. If you don’t live in an area with a lot of rain I recommend BFG KO2 for aggressive looking yet mild mannered all terrain. They also ride good with a lot of miles. If you want more clearance then run 35’s.

im sure the guy you bought from had to put shims and did bumper chop in order to fit 37s with a stock pro suspension. I’d definitely go with an all terrain tire and 33s or 35s if you need the height. Also engine/gearing if stock will suffer with 37s

just saw your psi is 37 not tire size therefore omit my questions. I’d go back to the OEM Michelins that come with the pro

 

Shocks could be spent. I know from recent experience that the fox’s are supposed to be serviced every 50k. Not sure the bilsteins are rebuildable. Perhaps due for replacement. Also the worn, e load, nittos are certainly overkill and unnecessarily firm for your needs. Some Michelin ATs with a C load rating would serve you well.

 

A 100k plus miles is a lot of miles on shocks. Especially performance oriented shocks. Not saying that's where all the harshness is coming from, but they should probably be replaced. Even your springs being worn out could cause harshness. When your springs are sagging, your trucks ride height will be affected. It could be causing your shocks to ride in a harsher part of the stroke. Suspension fluid being worn can do the same.

I actually just yesterday put some freshly rebuilt Fox TRD Pro shocks on my truck. They are definitely plush. With 295/70/18 Ridge Grapplers. Even pumped the tires up to the low 40's psi.