you may try to call Jim K on the rim. you don't know unless you call him. Maybe some other venders as well, as they all used to sell them.
Finding a used one might be a bit of a challenge.
for a spare, you could buy an ion rim and set of lug nuts. it will cost a little more, but an aluminum rim is way lighter then a steel rim. I
carry a 16.5 rim/tire for a spare, as they are readily available, and i had 12 rims/tires at one time. a 16" steel rim that fits, is also getting to
be a rare rim to find. if you did any changes to the front brakes(80mm upgrade), a 16" steel rim may have a clearance issue as well. so I am
actually an odd situation and driving around with 3 different style rims. my back 4 are alcoa, my front 2 are dodge, and my spare is a 16.5 OEM. I
carry a set of lugnuts for the spare.
to find a 16" steel rim, you need to look for an older dually 16" rim, that has a 4 9/16" center bore, and is rounded "bell" shaped and not a cone
shaped. they can be tricky to identify. AS far as bolt patter, I can't even remember what it is, but if you find a dually rim with that center
bore and a bell shaped, I am pretty sure the bolt pattern works.
there are photos on the photo site to help identify the proper 16" steel wheel, but even after hunting them for many years some photos still throw me
off.
--
Jon Roche
75 palm beach
EBL EFI, manny headers, Micro Level, rebuilt most of coach now.
St. Cloud, MN
http://lqqkatjon.blogspot.com/