20 x 12 wheels ?

[blockrockin]

i am trying to find some 20 x 10 kmc black rockstar wheels instock somewhere.. i cant ...i did find some 20 x 12's i was wondering if those would be ok to run with 37 x 13.50 x 20 nitto mudd grapplers.? i will be getting a fabtech 6 inch lift at the same time. would that cause any problems or would it be better to keep looking for the 20 x 10 's ? thanks for any help!