I ran a 2" BB in the rear and a set of v8 ZJ springs up front for about a year and liked them a lot. I bought them used for $25 and gave them away on my last lift. Unfortunately, I don't know the model number for what I used. I was running BB front and back and replacing the front BB with the ZJ springs I gained about an inch of lift. Uncompressed, they are the same length as a stock TJ spring but since they are stiffer, they don't sag as much. The ride was still better IMO since I like the the front end tighter with less roll on the streets.
Before with 2" BB front/rear:
After with ZJ springs in front: