I saw a stock Sahara make it up Daniel. He was an incredibly good driver. All us ZJ guys were at the top anxiously watching for body damage on that shiny red wrangler. Alas, he made it... chrome door handles and all.
Depending on your tires you may want to stay away from Dickie Bell because it has the most sharp and jagged rocks of all the trails and can puncture them. A stock wrangler with mud tires can go anywhere at Uwharrie if you pick the right lines.