I have case 1816 with factory tires/rims. The skid also came with 4 wider tires&rims (205/70/15's). The tires were shot and rims very rusted. I bought 4 used 12hole rims with tires on just to get the rims (I have 4 brand new 205/70/15's) to put on- But two of the rims were 6" wide and 2 were 5" wide? But all had old H70 tires on them.. I think my factory ones are 5.90 wide , which would be wider than the 2 5" ones so does that mean my new 205 tires would fit on the 5" or factory 5.9" rims? I thought the 4 used ones I bought were all 6" but.. not the case.