Re: 35\'s to 37\'s...too much for my axles?
With all the discussion with traction and torque forces aside, go find someone with 37" SSR's and compare them to your SX's The 37" SSR's will only be about 35 to 35.5" in diameter, and the SX's usually tend to meet the advertized diameter. So in otherwords, I bet that you wont see much of a difference in circumfrence, will have less contact patch area, and the SX's weigh more than the SSR's. If'n your axles handle the SX's, they should be no worse off with the 37" SSR's