Yes those are the numbers. If you have a 2dr, 18/59 or 19/60 from a 4dr will actually give you around 2" of lift... Even if you have a 4dr you will see a big improvement in the height and overall ride. The higher the last 2 numbers, the stiffer the coils will be.

 

All i need is the coils ? Will they work ok on all of the stock parts that i have if it lifts me up 2" ?

 

Yes.... If you go with a BB you will need the rear brake line relocater and shock extensions, but most kits should come with that. A lot of people actually run this setup because it's a cheap mod and improves the ride. You will be surprised on the height you gain from such a simple/cheap mod

 

how rough does it ride with the stiffer springs?

 

What if i just do the Rubicon springs and on kit. Will all the stock parts work ? Or do i need relocater and things ?

 

I have a Rubicon, so I had stiff springs to begin with. 15/56 I believe. I ended up switching to 18/58s, gained all the height I lost from Mopar bumpers front and back, rear tire carrier, Warn 9.5 ti winch and Mopar front skid (the steel one) + 1/4 inch, I believe.

I don't notice any harsher ride, but I'm still comparing it to my '92 YJ and I think my JK rides like a luxury car compared to it.

 

Here's how she sits with just the Unlimited Spring swap.

 

If i run my stock 17" what size tire can i run ? And what wheel spacer would i need ? I would like a good AT tire.

 

You will only need to relocate your brake lines/rear and will need longer sway bar links in the front. You can get quick disconnects or use the rear sway bar links on the front and score another pair of rear sway bar links for rear. If you do the 2.5" BB with 18/59 or 19/60 coils, you are going to net closer to 3-3.5" of lift. And all the above stuff I mentioned WILL be needed...

 

so in other words, after the stiffer springs making up for what you lost from weight you are now 1/4 '' over stock height?. I just did the leveling kit a couple weeks ago , my bumper/winch is heavy i wish i would have got a 2.5 '' puck for the front because with the lift the rear will still be 1/2'' higher than the front because of the weight.