Had the same issue with my new Redhead steering box. Rather than taking the trouble to take it out, ship it back, and then re-install I ordered new fittings from greensalescompany at $2.50 each.
Followed Mike's advice, only took about 1/2 hour, most of that was dealing with trying to minimize the mess from the fluid. After getting it all back together it looks like the leak is fixed. Thanks Mike!
Anyway, for reference here is a pic of the old vs new fitting. You can see why it leaked so bad clearly.
P.S. I know this is an old thread, but I thought it might help others facing the same problem to see what the fitting looks like and why it could be causing the leak.