Crossover steering is a fantastic upgrade and IMHO, pretty much mandatory for anything over 4" lift if the truck is really used offroad. I have the ORD kit on my truck, and it is VERY nice. I bought it for my old truck with a 4" lift, and the difference was night and day. However, it does put an even worse beating on the frame than the stock setup, so if you go X-over, I'd definitely add a steering box brace (you really ought to install one anyway with hard offroad use). I built one for my previous truck after totally trashing the steering box area on the frame:
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It's ridiculous overkill, but I had a little, "I'll fix this <bleepin'> thing once and for all" running in the veins...
However, great as X-over is for steering geometry and function offroad, it won't add any power to your steering. For that, you can try a little pump tweaking, but for any significant improvement, you're going to have to go with some sort of ram assist. Check out PSC as was mentioned earlier. It's on the agenda for me too here shortly.
