I'm not so concerned about gear ratios, I'm more concerned about using an axle that is only 2 mm larger in diameter than the one I just broke. If someone has axle diameter chart to share, that would be great. My axle is out of a roadster and I would like to know if all H190's are the same. It has the 10 hole center diff pattern but I thought the axle would be a lot bigger. Oh, I forgot, it only has 23 splines on the axles. That I don't understand.