It's the torque on the joints and axles from 4 wheeling that'll kill the front end. The power to turn the 35's will tear up the front axle if you get stuck in mud or hard rock work, maybe even sand under the right conditions. You see it all the time with jeeps trying to run 36's with a Dana 44. Axle joints break, axles break, wherever the weakest point in the driveline is, it'll break if enough torque is applied at the wrong time.
If you want to do that tire size, I'm afraid that the only successful way to do it'd be to do a solid axle swap on the front end and go to a good strong Dana 60, or Ford 9". The one good thing about doing that's that you can lift it as high as you want, then.