Get high steer... the stock push pull is will break with moderate street use. High steer first... everything else later...

problem is you need 3in lift before it works.  3in lift with 31's???  well, it would look like your truck is on cheerios!  I would say stick  with the stock steering for now.  I don't think that you will have a problem with any of the moderate trails.  Here in co, I can do all of the moderate trails in my stock 85 with at 8psi.  But I can't even come close to even THINK about trying any hardcore stuff.  If you are gunna stay small for moderate stuff, keep the stock steering, but if you are gunna go hard core, than get high steer...

my .02

PZ