going from 18 to 20" wheels

[kmcdonough]

I have a 2017 2500 Big Horn that came with 18" wheels and 275/70R18 tires. I have an opportunity to buy a set of stock 20" wheels with 285/60R20 tires mounted on them that came off a 2018 2500. They seem pretty close in overall diameter. I assume they bolt pattern is the same between the two. Other then the speedo being off, are there any other concerns I should be aware of?
Thanks,
Kevin

 

[bighammer]

It's only a 0.9% difference, so nothing to worry about.

Here's a calculator that I've found to be pretty handy to use:

https://www.tacomaworld.com/tirecalc?tires=285-60r20-275-70r18

I've thrown around the idea of different wheel/tire size, (315/70-17" on mine) but I want tall like what I have now, but maybe less width. I'm not seeing a lot of choices in the 20" or 18" yet. I will probably try a 285/75-17" next time around.

 

[MRoberts]

They will bolt on just fine and like big hammer said, no speedo issues with a minimal change in size.

big hammer - I changed from the stock 285/60/20 to 285/65/20. Taller and same width, looked better too!

 

[SnoKing]

Next time you have to buy tires, you may wish you had stayed with the cheaper 18" tires. If you want to change something, find a set of 18" Laramie wheels which are the best looking of the lot. SnoKing

 

[MRoberts]

SnoKing is spot on the 20" tires are a lot more expensive!

 

[kmcdonough]

Thanks for the info. I really didn't want 20' wheels but the combo was a pretty good deal. But I checked and 20" tires are way more expensive. I will re-think my purchase.
Thanks,
Kevin

 

[SnoKing]

Like I said the 18" Laramie wheels and the best looking of the lot. SnoKing

 

[Ozymandias]

20" will come cheaper soon, they are so often used OEM now.

 

[Cummins12V98]

Here let me help with that photo so people don't have to get out their cheater glasses.

 

[Regcabguy]

I have a 2017 2500 Big Horn that came with 18" wheels and 275/70R18 tires. I have an opportunity to buy a set of stock 20" wheels with 285/60R20 tires mounted on them that came off a 2018 2500. They seem pretty close in overall diameter. I assume they bolt pattern is the same between the two. Other then the speedo being off, are there any other concerns I should be aware of?
Thanks,
Kevin

Ride quality will suffer along with your wallet when replacement comes. I don't get the move to 20's. Lot's of metal and rubberband tires to boot.

 

[bighammer]

OK, the 20" option is looking better to me. These are narrower but still tall as my 315's and these prices aren't bad either.

 

[Ozymandias]

Good idea, the 20" Rims will give you a very good road feel.
The 17" with the 315 feel always, well, spongy.

 

[bighammer]

Good idea, the 20" Rims will give you a very good road feel.
The 17" with the 315 feel always, well, spongy.

Wide tires suck for plowing and deep snow anyway.