Anyone run 235/85/16's on a Stock Gen 1????? I have 255/70/16's on right now and they are snug.

Anyone run 235/85/16's on a Stock Gen 1????? On my 2005 Tundra, I have 255/70/16's on right now and they are snug and do not look right (see below pics). I have a 1.5" level kit on the front but I am still concerned about height and width causing tire rubbing. Also, any thoughts about spacers to help with the width issue on a larger tire????

 

255/70/16s on a 2005 are snug? I have 265/70/16s which is standard with the alloy wheels option on an 02, 85s are definitely going to be tall. Good question though.

 

those 235/85/16 tires are about the same height as a 265/75/16. Should fit on a stock wheel with your lift. Those will be around 31.5" tall. Can't see your images. I'm not sure I would want that particular tire as it is so skinny and has so much sidewall. If you go that route report back.

 

235/85 R16 tires will be about an inch narrower and an inch taller than stock 265/70 R16 tires.
Your 255/70 R16 tires are about a half inch narrower and shorter than stock tires.



I don't have experience with the 235/85 R16 size you mention.

 

Thank you for the calcs Jim.

The stock tires size posted on the door jam is 245/70/16's. Do you guys see something different? The 245's have a width of 9.6" and height of 29.5". I'm thinking the width of 10.4" on the 265/75/16's or 265/70/16's would cause it to rub as the 255/70/16's is barely missing.

 

What wheels are you using? If you are using Tacoma wheels, I wouldn't be surprised you may have issues rubbing on the inside. Stock Tundra wheels are about 15mm. Many Tacoma wheels are 25-30mm.

I run LT245x70x17 with TRD Pro SEMA wheels (offset 4mm) and have no issues whatsoever.

 

What year and model Tundra do you have? My 2003 TRD 4WD Access Cab came with 265/70 R16 tires. The 245 tire width is also listed on the door jamb sticker. I've heard here the 245 width may have been stock on other models.

 

I bought the truck used and am assuming these are stock Tundra wheels. It’s a 2005 Double Cab SR5 Tundra w/4.7 V8.

 

245s are stock steel wheels. 265s are an option which come on most packages that include the aluminum alloy wheels. One exception is the XSP package with upgraded wheels/tires I believe.

 

Can you post a photo of the wheels? As mentioned above, the wheel backspacing (and rim width and offset) can have a dramatic difference on how a wheel/tire package fits on a given car. If your wheels aren't stock, you'll need to measure the backspacing (wheel needs to come off the truck) and compare it to a stock wheel to see how a tire of a given width will fit.

If your wheels have more backspacing than stock you'll need a narrower tire or spacers to fit a wider tire (rim width can also be a factor)

https://www.4wheelparts.com/the-dir...J5SG3BtM2hi31hPPzgoR7pWlQybuUA_IaAnYXEALw_wcB
Measuring-Wheel-Backspacing.jpg

 

That is interesting about the wheel possibly not being stock....never gave it much thought. Here is a pic of the wheel. It’s missing the center caps on all 4, can you tell if this is stock?

 

I'm no expert but those don't look like stock Tundra wheels.

Here are 20 pages of wheels that fit Tundras but hopefully someone will chime in with a call on what they are.
https://www.tundras.com/threads/lets-see-1st-gen-with-toyota-rims.40487/

Regardless, if you want to explore tire options and you're going to run those wheels you need to know the dimensions of the wheels, in particular the back spacing.

If the truck is new to you now is also a good time to make sure your jack works and you have the special socket for those security lugs nuts.

Remove the front wheel and measure the backspace. Straight edge from lip to lip, ruler from the straight edge to the face of the wheel...


A oem 2003 16" Tundra alloy starfish wheel has 4 5/8" of backspace. If your backspace is deeper than that you have less space for tires before they hit suspension parts...


Jack safely...

 

That is not a Tundra wheel...I think it's an early 2nd gen Tacoma wheel....which as mentioned is probably a +30 offst compared to a stock Tundra wheel being +15 offset. That's your issue.

 

I know it’s not an apples to apples to comparison, but I ran 235/85R16’s on my 2006 Tacoma, the results were good enough for me to buy a second set when the first wore down. The thing was an absolute beast in deep snow with the pizza cutters.

Fuel economy may have suffered as they’re only available in LR E / 10 ply rated, but tough rubber for a truck used in tough conditions.

And I agree, those aren’t Tundra wheels. I’m thinking 4runner.

 

I'm not sure what wheel that is but its not Tundra. There should be a stamp on back of the wheel which indicates offset (E15 or ET15 for 15mm offset).

 

Definitely not a OEM Tundra wheel.

 

So it looks like the wheels are my issue. How do I find out stock backspace and offset? Is the 4 5/8” on the 03 the same for all 1st gens? Also, there were 3 tire size options for the 2005 Tundra:

• 245/70 16
• 265/70 16
• 265/65 17

Will all of these work on a stock Tundra regardless of what it came with originally?

 

The sweet spot on our 1st Gens is the 285/75/r16. Just do it. Slight rubs on inner frame, but only at tight hard parking spot turns. I found this chart for Really Dumb Hand Models to Understanding Wheels.

 

Here is another layout somewhere provided by a member I screenshot’d.

 

Short answer is yes. What size tire do you want to run? 1st Gen Tundras, all came with approximately +15 (gove or take 2)) offset wheels except for the Darrell Waltrip SE BBS 18 inch wheels that were +4 or +5 . Lower offset means the wheel is out more towards the fender and less toward the control arm. Pretty much all 5th Gen 4runner wheels run similar offset to FGT, so you can treat them like OEM FGT wheels. TRD Pro SEMA Wheels (what I run) have the same offset as the BBS rims.

 

I want to go as tall and wide without rubbing. I’m now leaning towards 265/75/16’s. My new dilemma is what type of wheel to go with. I’m looking at the Mickey Thompson Classics below but neither option meets the stock specs exactly.

 

If you want NO rub, that's the biggest on OEM stock rims. That rim pushes the wheels out quite a bit, but I think you'll be fine.

 

When I bought my truck it had 16x8.5, ET0 with 265x70x16 tires. No rubbing. I don't know if the extra 1" of tire (1/2" extra radius) with a 265x75x16 will cause a problem...you might be OK with an 8" wide wheel.

Of the two wheels my vote is go with 0 offset.

Isn't there a stamp in back of the wheel which indicates the offset?

 

I found this on the wheels thread. The wheels look similar to what you're looking at. It's not the best shot of the wheels but it may help picture the look...

 

Let me make sure I understand offset. Anything less than the factory +15mm offset will move the tire further out away from the center of the truck? Therefore, the Mickey Thompson’s with the 0mm offset and same backspace as factory of 4.5” will move the tire/wheel 15mm or .59” outward? Also, will this decrease in offset more than compensate for the extra 1” of width on the wheel?

 

Thank you for the pic of the MTs on the Tundra. That helps!