Yes, it does, and generally, and in the case of Boeing jets, the wing box is enclosed by wing spars at the forward and rear faces of the wing box. So, the "pickle forks" are attached to the spars and to the wing box, as considered as a larger assembly including the spars.
center wing box, and what appears to be the right rear "pickle fork"
Last edited by ironbutt57; 2nd Oct 2019 at 02:09.
Reason: espelligns