I started with 265/75r16 bfg ko2 all terrains on stock wheels, and all pro sliders. That made it plenty capable off road. Suspension is tricky and completely depends on what kind of load you'll be carrying. I started with some rear leaf helpers from hellwig that were cheap and helped the sag from the shell and rtt, but wasn't enough. I tried the old man emu system for awhile and liked the Dakar leafs with the added leaf for handling the weight of camping gear, shell, rtt and fridge, but didn't really like the front. I ended up going with icon 2.5 ifp extended travel coilovers and ucas with Delta joints in the front which handle nice and worked out great for fine tuning the ride height with the hidden winch mount from is off road and warn m8000s. The upper control arms imo are worth the money. The alignment shop got the ome set up close with the stock ones, but it wasn't close enough for me. The ome rear shocks seemed bouncy compared to the icons in the front so I got some custom length icon 2.0 extended travel rear shocks, wheeler super bump stops, all pro u bolt flip kit and extended rear brake lines. This combination has worked out great for me. I haven't decided on a rear bumper yet, but pelfreybilt is on the top of my list so far, and I'm looking at their skids too. It's hard to do the lift without the weight you intended on eventually planning on having, especially in the front, adjustable coilovers make it easier, but you still might need to go with a heavier spring if you get a crazy heavy bull bar type bumper. I ended up rebuying things and wish I would've just spent the money upfront for the higher end suspension to begin with. It usually just comes down to what you intend to do with the truck and $. Just sharing my experience with my build, I hope it helps.
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