I had a set of 38.5x16x16.5 baja claws mounted on 16.5x12 wheels. On an 8lug IFS truck I broke and wore stuff out all the time. I have now downsized to 35x12.5x16.5 and there mounted on my 12in wide wheels for now, just until I get the money for some 16.5x9.75. If you are running those tires on an IFS stick with 10in wheels, But you will still break stuff specially with the wait and traction of boggers. I used to be into the big wide tires but now after running several sets I say stick to the narrower stuff.