I've had the Rocky Road 2" budget lift on mine for almost a year, zero complaints. The ride actually improved (firmed up slightly). The kit came with 2" poly spacers, 1.5" shackles (beefy!), 0.5" steel lift blocks and shock extenders. The shock extenders were a total waste, not only did they not work well at all (removed them after one day), but were totally unnecessary with only 2" of lift.
The only thing that you need to be aware of is you will need to order longer u-bolts (Rocky Road has them), and you'll need longer leaf spring center pins (you can get the right length round allen head bolts at any home store that will work well). Also, you'll probably want to remove your rear sway bar during the installation as the lift blocks will cause the swaybar brackets to ride very close to your tire's inner sidewalls. But I noticed zero negative effects from removing the bar, in fact my rear suspension actually feels firmer now (less body roll) than it did when my Jeep was totally stock.