I looked at 22.5s and 19.5s for over two years. I don't like the idea of 22.5s sticking out past the fender well nor the height of the tire for towing. It is a great looking setup on dually trucks. I also don't like the adapters. Using the adapters you are able to use the big rig wheels which are rated much higher than standard bolt on 19.5s.

I found these wheels at a good price and are rated at 4000#s.

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CUMMINZ NC
2007.5 CTD, QC-DRW 3500 BFT Laramie, Smarty S-67, AMSOil Dual-Gard Bypass, Custom Line-X 4x4, 4.10LS, 988s, 68rfe, MBRP 5", Mobil Delvac. Yukon free spin, 19.5x245 G647 Goodyear's - 2006 - 37RLTSD Cedar Creek-Day Dreamer
My 2007.5 DRW Truck at www.CumminZ.com