Biggest tire size on 2018 TRD Sport

Just bought a 2018 TRD Sport with factory 20" wheels. Stock suspension.
I don't particularly care for the ride on 20" wheels with 275/55/20 tires.
The previous owner had 285/55/20 BFGs on there but when he bought a newer TRD Sport to replace this one, he swapped wheels/tires. Those tires did not rub.
I have 275/70/18 on my stock Tundra with no issues but I'm not sure it sits the same as the Sequoia.
I prefer 18" wheels but don't really want to buy any.
I prefer not get a 285 tire but they are an option.
Will a 275/60/20 fit with no issues?
What about a 285/60/20?
Basically, what's the largest I can go without rubbing or having to trim or lift?
Thanks

 

Stock trucks will fit 34 tall, about 11-1.5 wide with stock or close to stock offset wheels without issues or lift.

So just check the specs on the size tires you might want to run. Sizes you listed should work, one is 33 tall and just under 11 wide, other is 33.5 tall and just over 11 wide.

Either should fit fine, probably need to lose the front air flaps under the bumper, mud flaps should be ok with stock offset wheels.

Note- the larger tire size you listed is about the same as a 285/70-18....and that for sure fits unlifted trucks with stock offset wheels just fine.

 

Check out this thread: Largest tire you can run stock for all generations | Toyota Tundra Forum (tundras.com)

It's for Tundras rather than Sequoias but should give a pretty decent idea of what fits.

 

I read that whole thread when I bought my '18 Tundra, but I'm not sure the TRD Sport Sequoia and SR5 Tundra sit at the same height stock, which is why I was asking here.
Just read elsewhere that 275/65/20 BFG will fit stock. I may look at offerings in that size. Or just stick with 275/60/20 to be safe.

 

Pick up some 18" Tundra wheels and get a 285/70 - 18.