What is the maximum front & rear spacer thickness you can safely run on a 2015 JK? I do not want to go with an expensive lift at this time, and this is my DD. I would like to add a spacer for my coils. Thanks!!!

 

Tire size? Stock wheels? What's your main goal here?

If you're only planning on 33s, just buy new wheels and tires. Don't even need lift at all.

Most of the spacer kits are usually an inch up to 2.5". But with more height, in my opinion instead of shock adapters get new shocks as well.

 

I think that 1.5" is the max.

As it is, with 1.5" spacers and 35's, I chew through a front unit bearing in about 2-3 years. More spacing will wear it sooner.

 

You can run any size budget boost you. (though I don't recall seeing any over 3" or so ?) But as with coil lifts, if you go taller, you want to get all the same components to go with it. Don't just get tall spacers and nothing else.


Coil spacers for lift height, not wheel spacers...