Tires!!!

Not sure if you have Toyota Rock rails or just steps. Rock sliders should fit to the frame of the vehicle so they can take a good amount of weight to protect the body. Also after market rock sliders come further out from the body for little more protection and also can be used as a step. (Toyota rock rails stop right under the door and have no step functionality.)



VS Toyota Rock Rails.

This is how aftermarket skids look like, covering the belly of my 4Runners.




Another view that shows the skids come all the way to half of front door. Also have gas tank skids, rear diff, shock guards, etc..

 

Thanks for the reply, I have the OEM rock rails that fit snug under the door, with no step. They are definitely bolted to the frame. I did think they were supposed to stick out a bit further when I ordered them though lol.

The armor I have underneath looks very similar to the bottom picture, it just doesn't say TRD.

 

I'm shopping for a slightly used 4Runner, 2019 - 2023, I've found this tire section
interesting.

From what I've read gas mileage is only about 19, what effect does going up in tire
size have on the mpg on these vehicles?

 

I still have the stock rims/tires and have mostly highway miles so far at 2200 miles. I am averaging 17 MPG on "eco" mode. Generally speaking, a larger tire equals less gas mileage but its probably negligible under most instances (1-5% with additional tire weight included)

"The automotive industry estimates a 10% increase in tire rolling resistance equals a 1% to 2% decrease in vehicle fuel efficiency"

 

As @Sean M. mentioned, going up a size won't necessarily kill your mileage.

One of the biggest factors will be your driving style. More city driving and higher speed highway driving will kill mileage. Lower speed highway driving will yield the best fuel economy (55-65mph).

Tire weight and tread pattern will also affect mileage. Some of the 285/70/17 all terrains are available in an SL rating, and they're lighter than the LT versions. This is the way I'd go if I weren't going to be off-roading in rocks.

FWIW, I've gotten very close to 20 MPG on 295/70/17 mud tires (64# apiece) by taking 55 mph highways instead of the freeway.

 

Anyone have details on what the trimming is that Toyota does for TRD Pro rims?

 

Have a look here at Toyota’s own instructions.
https://static.nhtsa.gov/odi/tsbs/2019/MC-10162789-9999.pdf

Here’s a thread on the topic.
https://www.4runners.com/threads/best-method-for-fender-trim.26313/#post-357097

 

Hey guys, I just walked in the door from going to the dealership by my work and the service manager confirmed that there is no trimming required to switch from the ORP rims to the TRD rims. I'm not sure about other models, though.

 

Interesting. I guess Toyota was just wasting their time when they published that service bulletin.

 

I have no idea lol. I just bought 4 tires and asked what trimming was needed to switch to the flat black TRD rims I ordered online and he said "none". The quoted price has nothing for trimming either. The stock and TRD rims are both 17s, that's all I know. lol

 

Go with Trail Special wheels. 285/70/17 Flaken WPs, 2” lift, no trimming, no heat gun massaging, no rubbing and i still retained front and rear mudflaps.

 

That truck is clean, did you have the rims coated? I don't have a lift on my truck, would this still apply?

 

thx! Yes i ceramic coated the rims.

not sure.

 

The effective offset change between the trail wheels and the TRD wheels is almost nothing.... We're kind of splitting hairs here.



I do like the trail wheels more. But if our goal here is to eliminate rubbing I'm not sure if 4.6mm is gonna make that big of a difference.
There are plenty of people running 285/70/17 tires on the TRD wheels. It's not really a problem imo.

Scrub radius changes with offset. But 4.6mm is not going to be the end all be all...
I'd argue that tire manufacturer and alignment has a bigger role to play here.


Edit: Another factor is if your particular rig had the port bumper trim done.
OP's did not so that may cause a small issue. Even if its easily corrected.

 

no trim was done on mine from the port.