So, did you use the same axles and move the wheels out? I always have to replace with Gibson EM axles. Every wagon is different; some axleboxes are so thick they give little room for rocking axle guards inside. I have just found my late father's old Peco Wonderful Wagons and with pin point bearings and widened axle guards, they should work...I still like their flexible leaf springs.
So, did you use the same axles and move the wheels out? I always have to replace with Gibson EM axles. Every wagon is different; some axleboxes are so thick they give little room for rocking axle guards inside. I have just found my late father's old Peco Wonderful Wagons and with pin point bearings and widened axle guards, they should work...I still like their flexible leaf springs.