What size tires are you running??
Coyote canyon can be done in 2wd so if thats the type of trails you are running, the D35 will hold up no problem.
Everyone bashes the D35 but truthfully its a decent axle if you are not crawling the hammers on 40's. Before I got my LJ, I was running a TJ on 32's. I did just about every trail in big bear, Jtree, Anza etc with no problems. Ran those trails for years and never broke a thing.
If you are really worried then get chromoly shafts or a super 35 kit. Don't believe all the hype on the internet. Is it an ideal axle to have? probably not but its also not as bad as most people would have you believe either.