For max spread;
a) Pie plates OUT, pie on the outside.
b) valve stems generally OUT, but what really matters is that the rim off sets the tire outwards.
c) Rim mounted to pie plate on outside of the mounting lugs, the mounting lugs are usually part of the inner pie plate.
The difference of an inch and a half that your's is less than someone else's suggests c) above.
Owners' manuals usually detail all this, if you don't have one you MIGHT be able to download a .pdf copy from NH (guessing).
a) Pie plates OUT, pie on the outside.
b) valve stems generally OUT, but what really matters is that the rim off sets the tire outwards.
c) Rim mounted to pie plate on outside of the mounting lugs, the mounting lugs are usually part of the inner pie plate.
The difference of an inch and a half that your's is less than someone else's suggests c) above.
Owners' manuals usually detail all this, if you don't have one you MIGHT be able to download a .pdf copy from NH (guessing).