Hi Mike,
Welcome to the VCCA's website!
FYI, I looked in one of my parts book and it says that the same rim (same part number: 938075) was used for models LQ, LR, LS, and LT.
It is interesting that in another parts book, the rim for the 1926-1928 one ton trucks (models X, LM, LO, and LP) used the same tire size as the LQ-LT (30-5 or 32-6 or in today's sizes 500-20 or 600-20), but the part number for the rim is different for these older trucks: 938079.
So, a rim from a LR, LS, or LT will definitely work on your truck, but I don't know if the earlier rim will work or not even though they both take the same tire.
I think you'll get more responses if this thread is in the Parts Wanted forum, so I'll move it over there.
Good luck! Dean