Here's a perfect DIY extension kit for you! I'll get pictures of mine ASAP.

http://www.quadratec.com/products/12002_1300.htm

 

i've been looking at these as well...
any idea how much needs to be trimmed off the ends of the rubi rails when running 35's on an unlimited?
that's the only thing that's holding me back... hate to cut up brand new parts...
but i need to get rid of my stock plastic steps.

Mark

 

I wouldn't think that you'd need to trim anything if you lift your unlimited 2.5-3" because the stock Rubi Rails and my after-market Rubi Rails only run the length of the pinch-seam on the bottom of the body. I've not heard of anyone rubbing 35's against the pinch-seam or against their stock Rubi Rails when lifted 3".

Also, on a stock suspension, I'm pretty sure that the 35's would rub against the fenders before the pinch-seam/ Rubi Rails.