Or over-powered steering? No, that's not quite right either. In a totally unrelated few conversations, I was talking with Brad Kilby the other day and as usually happens we ended up checking out each other's vehicles. When under the hood of my Cherokee he saw the GenRight Off-Road pulley on my PS pump. Which then prompted him to dig this off one of his dirty shelves. Says he was playing with it about a decade ago. The stock PS pulley is about 5 3/8 inches in diameter. This one is 4 3/8 inches in diameter. A smaller pulley will drive the shaft of the pump faster, kicking up the speed. I think its a great idea for rock crawling... and will likely try it out on the old XJ. The Cherokee has 33s on it now and already has a bit of an issue with rocks. Eventually I'll put 35s on it. I'd really rather keep it simple and not add a ram. I'm hoping this pulley will give me enough extra oomph to pull that off.