Matthewd5

Ok I always said I'd never need more than 33's

Well I'm feeling the need to go larger and when I did the calculator chart thing going from 285's to 315's only netted me a 1.5" gain

Am I missing something?

It's making 37's look like the next logical upgrade path...

I know I'll need to replace the axles with some really good ones but what about other stuff, I have a 2012 2 door with a 3" lift and factory fenders...

I'm adding lockers and regearing whole I'm at it, thinking 4:56?

Am I going to have to change fenders?

Will the 3" lift be enough?

Anything I missed ? I know I'll never be able to reach the drive through ATM again!

Matthew

CT2

37" get 5.13's you will be much happier.

I'd look at the RK 3.5 X Factor Long Arm Stretch System

nthinuf

Metrics can be a bit fuzzy when you start comparing sizes. Standards are pretty straight-forward, with 33/35/37, but metrics are some conversion of sidewall height to tread width, so you can end with a fair difference in height between say a 315/70/xx and a 315/75/xx. (which you would think would be the same height...)

Anyway, if you are considering 37's, get 37's. If you aren't sure you want to go up to a 37, then get one that is known to be a bit shorter, putting you in the 35-36" actual height range. (but you can still claim that you have 37's... )

Going to flats wouldn't be a bad idea, but you might be able to just add some bumpstop and trim the pinch seams/rails/whatever else needs trimming. And having both upper and lower adj arms will let you move the axles forward/backward in the wheel wells if needed.