20” to 18” wheels

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I would suspect they might have come off something older then 2018. The frequency should have been the same. There is a different protocol for steel wheels vs aluminum but 18" and 20" Aluminum wheels 2018-2020 with keyed ignitions should be the same sensors. I believe there was a protocol change somewhere around 2017. My TPMS tool shows a different protocol for trucks prior to 2018.

 

I would totally trade my 20's for 18's or 17's around here haha

 

Every 07+ OE wheel is 8” wide with 60 offset.

 

I found a set of 18s from a TRD off road for $450 (tried for $400).

They have 700 miles on them from a 2018- no tires or TPMS just the rims.

Is this a good price or should I stick to $400?

 

I think $450 is a great price as long as there isn’t any damage or curb rash.

 

Ideally I’d like to sell my platinum rims, I’m assuming I should get the same amount for those? Also are the lug nuts swapable? And the TPMS as well?

 

Once I find a set of 18” wheels, can I swap the sensors from my current 20” wheels to the 18” one I’m buying?

What happens if I use wheels without sensors?

 

Yes the TRD 18’s use the same lugs as the platinum. They are what’s called a mag shank lug nut.
The TPMS sensors from your 20” platinum alloy wheels swap over to any and all of the other alloy wheels out there. So, yes, they get mounted in the 18’s.
I have no idea what someone will pay for your wheels. Totally subjective.

Yes, see my above reply.

If you don’t use sensors your TPMS light will be illuminated at all times.


Honestly what y’all are talking about (swapping from one OE wheel to another OE wheel) is very common. I can’t say exactly how often we do it at my shop, but we do it pretty often.
Any legitimate business who sells and installs tires will help guide you through the process. They should know all about having to swap TPMS parts from your original wheels to whatever new wheels you have.

 

I can't quite understand the 20" wheels standard on the higher level Tundras. Part of me not upgrading to a newer Tundra is that I don't want 20" wheels with the shorter sidewall and stiffer ride on the higher trim level Tundras. I understand some like that look, but for a truck why not use a taller sidewall for a comfortable ride (taller sidewall). I would think 18" wheels would be standard on all Tundras and 20" an option for those who like them (that's just me). And some bigger tires and lifts for the offroad versions. The Michelin ATXs are very nice handling and riding tires and do a decent job on the mild off road stuff most people get into. If I wanted serious off road I'd want much bigger tires (with decent sidewall) and a lift not the 20" rim setups on a tundra. If you want to go for that no sidewall look there are plenty of outrageous wheels with 2" sidewalls you can go for that won't cross a pothole without blowing out. On the Avalon I have nobody wants the 19" wheels (except kids for the looks) because the ride is to brittle and many go for the lower level Avalon's to get a nicer ride with the 18" wheels. . Nicer trim levels with a crap ride? Seems Illogical. What is the big attraction for the 20" wheels? Please educate me.

Good to know you can swap to 18" wheels without messing with the speedometer. I see more folks getting rid of the 20" tires. I used to find 18" takeoffs with Michelin ATXs for dirt cheap. Now not so much. Seems like the tide is turning. Maybe all the manufacturers (they all seem to think tiny sidewalls are what everyone wants) should pay attention and note the consumer preferences.

 

The 20" wheels are used on higher end trim levels for looks. Ride quality is subjective but my 20's ride great.
A lower profile tire tends to react to steering input better and doesn't "roll" so cornering is better.

The 20's on my Tundra have the same amount of sidewall that the 14's on my Camry have.
Nowadays your can add the TRD Off Road package to a limited, platinum, and 1794 I believe for no extra money. There, you get your 18's.

 

Thanks for your reply. I lean towards ride and don’t want the TRD suspension either for the ride reasons. I do agree that less sidewall will give better road feel but I lean the other way that the 18" tires handle fine and give sufficient road feel. I'm not down on anybody liking 20"s but I'd much prefer a non-TRD limited with 18" rims and taller sidewall Michelins. I also won't buy a Tundra with Bridgestones which all the Tundras around me come with lately. So I'm watching to see what the 2021s bring, but for now still enjoying the 2010 DC SR5. Guess I should just be content with a truck I really enjoy and tows my boat and snowmobiles very well with a nice ride for long hauls.

 

Another thing I don’t understand
1. Wheel size: what is 8jx18 and 9x19 when it comes to wheel size and what size do I need?

2. Tire size:
When going from 20 to 18
What size tires do I need to get?

I don’t what flashy and looks. I want performance and gas mileage. That said I'm asking: What size 18” wheels ? X ? and what size 18” tires do I need?

 

Not sure about that j in 8j but the 8 should mean it is 8" wide and the 18 is the wheel height at 18". The other one you have there is indicating 9" wide rim that is 19" tall.

As for best fuel mileage, a 20 with a low rolling resistant tire as the OEMs typicaly put on stock trucks will be about as good as it gets. You can drop to the 18 no problem, don't expect any mileage gains over a stock Toyota 20 inch tire and wheel combo. The tire height is likely the same or very close tot he same, for both the 20" and the 18" Rims. So likely the best combo in an 18" tire for an OEM 18" Toyota Rim, would be the stock Toyota size for an 18 inch Rim, which is P275/65/18. Remember looking for better mileage would mean your looking for the least amount of un-sprung weight and the least amount of rolling resistance.

 

Thank you very much! I’m fairly new at this so this is a lot of info until I read more about it. What wheel and tire size in 18” would you recommend? Can you please provide the sizes? If I’m not gaining any gas mileage, then the sizes for performance and not too ugly either

 

My change from 18s were primarily for appearance sake, I wanted a wider more aggressive looking tire and as with most larger size aggressive tires they typically will force you into a load range E tire (commonly referred to as a 10 ply tire) They are capable of helping stabilize a heavy load, they are generally more puncture resistant. They are also generally quite a bit heavier then a 4ply (p-metric tire)(like what comes on the truck from the factory) not to mention a more agresive tire is also the opposite of a low rolling resistance tire. So what I did and most fokes on here do is purely for appearance or in some cases real necessity for things like hauling heavy loads or really off road uses.

If your focus is on fuel mileage, that size I gave you earlier is the stock size that comes on a factory Toyota 18" Rim found on many Tundra SR5 model trucks.
Size P275/65/18. That tire on any aluminum Toyota Tundra 18" Rim will likely yield you a slightly improved ride quality without any notable decrease in fuel mileage.
Meaning the difference is likely undetectable, but in theory your 20" rims are likely a fraction lighter then an 18" Rim with a like size(height/width) tire.

I am running a 285/65/18 Nitto Ridge grappler , which is both a taller and wider then the stock 18 inch tire, it is also a 10 ply load range E so significantly heavier. All of which significantly effect the rolling resistance, and will absolutely decrease the fuel mileage.

 

Just did a toy tech 3lift on my Tundra. Now I’m trying to decide to keep the 20 or go 17 (18maybe). I want a wider meaner look but can’t decide to keep the factory SR5 rims or go 17 and fatter tire making it look like a BaJa style. What y’all think??? I want meaner look

 

Hey fellas,
So I finally pulled the trigger and switched from 20” to 18” wheels.
My truck is a 2017 and the wheels are from a 2019 Tundra.
I was told the TPMS have different frequencies and I’d have to use my old TPMS on the new wheels.

well I have them on and drove about 40-50 miles, but no sensor lights yet!!! How long does it take for the lights to come on?

Discount Tire has already told me they can reprogram them. I’m hoping I don’t need to though!

 

Do you have the old wheels in the car? You're suppose to program the new tpms sensor id so the system knows to monitor the air pressures in those particular sensors , otherwise there can be tons of sensors around to confuse the system

 

The system doesn't get confused, it just doesn't see any other sensors but the specific frequencies programmed in.

 

So, what should I do?
Going to DT to try and re-program next week.

 

OK never mind my sensor light is on now. The reason it wasn’t coming on is because my original wheels with the original sensors were in the back of the truck, but now that I unloaded those wheels the sensor light is on. I took it to discount tire they reprogrammed it but the light still comes on.

 

Yes but I was trying to say if you don't tell the car to monitor these sensors, it would just monitor sensors nearby. So if you stuck in traffic, there's going to be a lot of sensor information. Hence, you need to register sensor IDs to the computer so it knows to just monitor those sensors.

 

It doesn't work like that.

 

Hey, I'm sure this is in the forums but I got a question.

If I'm switching my 2018 20" OEM wheels to 2017 TRD Pro 18" OEM Pro wheels with no TPMS attached, Can I use my current TPMS from my stock on the TRD Pro Wheels?