Thank you, I would make a dually on my k30 with my 37x12.5 / 16.5 tires, you know what rims I need to do that?
first, welcome..
it's not that simple unfortunately.. first the stock rims are pretty narrow for those tires... not even sure you could mount em.. iirc, stocker's are 6" wide.. I run that size tire in a dually setup, but they are custom, widened, rear stock rims.. ...
also in the back, the axle WMS should be the same, but in order to run those tires with stock rims, you'll need a wheel spacer between the rims...
also, you can get dually rims for the back, but your front axle is a SRW, not a DRW axle.. ...
you would need to change over the hubs to a dually hub to run the front dually rims.. or run 2 different rims, like me.. see below, I run DRW out back, and SRW's in the front
and the spring perches are inboarded so the tires don't stick out... springs are custom, under the frame setup, etc..