The idler arm is another weak point, either invest in a brace, or buy a heavy duty on w/a lifetime warranty, and carry an extra one on the trail.

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Most breakage comes from excessive use of the skinny pedal while the wheel is turned.

This is an issue regardless of what set-up you have, and is why most SA break Berfs.

Wheeling w/35's you will also want to carry couple of extra tie rods(complete inner and outer), this is the only item that I have broken in my '91 so far.

Probably the best thing to do to reinforce the IFS is to add a 2nd t-case. Being able to crawl slowly up onto and over a rock is about the best thing you can do to prevent breaking something, and should really be the first mod one makes to their rig, even before a lift and larger tires.

More than tread lightly. Leave it like you were never there, nor anyone else.
'90 X-cab 4.88's 33 BFG AT's, rr ARB, Headers, Ignition upgrade, cold air induction.
'91 X-cab 5.29's 315's BFG MT's, rr ARB, custom bumper and flatbed