Just found a cheap set of 305/70-17 on craigslist and I have some 5100s on order. I found a new set of tacoma 2010 17" rims to replace my stock 16", you think i can get them to fit or am i dreaming? For my '03 tundra forgot to add that

Dreaming.

maybe so i guess they are about an inch bigger than the 285/75-16

Don't you mean 305/65/17's ??
That's what will fit with a 2.5" lift
And if you're running 17x9" wheels, 4.5" backspacing, with a -12mm offset.
I have this combo and I have ZERO rubbing anywhere.
Even before my 3" body lift too.

You might have to trim the bumper up front.
Ever heard of the pinch-weld ??? on the wheel well area ??
You gotta take the wheel well plastics off to gain access to it.
Maybe even trimming the plastic a little too when testing the turning of the wheels to see if it contacts when cycling the suspension.
Requires Cutting/grinding smooth again, then sealing it back up from water/dirt,
Painting it again to protect from corrosion, ect.

You'd better figure out if you wanna do all this because That IS... What IS .... Required to fit the size I mentioned. 32.8" tall x 12.2" wide
If you have even bigger/taller .... HA.... good luck.

BTW send the 5100's back and get some REAL shocks.
They're called coilovers.

I had the 5100 front shocks when getting my Donahoe Racing coilovers ( Now: ICON Vehicle Dynamics ) rebuilt and they were a joke.
Lousy shocks. Totally worthless shocks. TOTAL disappointment. Glad I never lived life any longer than the week I had them. Send em back.
Save up for something better.
Needing it pronto. Rushed personality. Manic buyer ???
Impulsive buyer.... WELL.. Go get a personal loan or hit up the charge card.
Have more memorable experiences after.
Life being more grand after spending a grand. Or... two
Being so happy... you strive to make more money to improve even more.
Everything is enriched through these experiences you are driven to have more.
From your truck giving you so much more.
That's my personal experiences

Thanks for the advice, I may stick 5100s in the back and do coilover for the front. And the tires are 305/70-17...ie 33.8ish diameter ie to big haha