Haha, yeah, really! Just "nudge" the gates a bit. But no, alas, there is no way a 743 can fit in a 42" gate. The only Bobcat skids that can are the 440s, 450s, and 463. (And, okay, MT50, 52, and 55.) You might be able to sneak in there if you perform some major (read: unapproved) changes to the 553.I just measured my 743, it is 59" from outer wheel edge to outer wheel edge.
Come on, its a bobcat, you can make the gate opening as big as you need
Good luck