Independent for sure. I fucking hate thunders, every set I've ever had, there was a problem with. Whether it be axle slip, broken kingpin, etc. For the longest time, I was a strictly Indy guy, but for the past year, I've been riding theeve v3's, the 5.5's. They are seriously some of the best trucks I've ever had. Aside from the fact that they are super light, they have superior turning. I've been meaning to pick up a pair of venture 5.25's though, they look like they would be good.