jafir said:I couldn't find where they specifically address what is and is not covered, but in their description for why they were creating the HD stuff they talk about 35" tires as why it's needed. If it were me and I were going to not warranty them for use with 35" or bigger tires, I'd make sure and not talk about them, or at least put a disclaimer immediately before or after.
One thing to note... as this was talking about prices... the ashcroft stuff doesn't seem that expensive when compared to toyota HD stuff: http://www.longfieldsuperaxles.com/ though of course as you've pointed out, the toy stuff doesn't need upgraded until much larger tires are fitted.
Actually the Toyota stuff is cheap compared to the D1 options left.. The breaking strength of the 30 spline front setup is 8900-9000 foot pounds of torque per longfields site..