I have a sweet set of 44" mud diggers .there wore down to about 41.675 or 38.780 with a wide rim and about 2psi I'll every through in the wheels there 15" with 3/4 garden hose may need to replace do to the freeze and some flex seal spray,brush on flex seal was to thick ... ( is the **** ) it works great to make up the space needed for the 16.5 ..let me no if ur interested.800.00 plus shipping and handling ...