Rubicon shocks and springs on a JK Sport

I basically bought 4 Rubicon shocks for my old JK rebuild project because the price was right and the shocks only had a few thousand km on them. The guy selling them threw in the springs and a rear track bar. Everything looks new. I realize that Jeep springs are not model specific, but option specific and these springs came off a 4 door JKU Rubicon with a tow package and 4:10 gearing. The spring numbers are 17/59. My JK is a 10 year old basic model with it’s only option being an AM/FM radio. The spring numbers on it are 14/55. I’m tempted to install the springs, but I’m wondering what to expect from the difference. How much lift will they provide and how rough will they be? Of course, they’ll be pared with the shocks, and I’m going to install the track bar as well, just because mine is pretty rusted.
Has anyone done this? Thanks!

 

IMO the JKU springs ought to give you a small bump in lift especially since your old springs have settled. Ride might be a bit more firm and different because your suspension bits are ten years old.