yes the xtm mammoth st dogbones and the xtm mammoth axles, you just need to change the bearing on the inside from 19mm to 19mmoutside and 8mminside i found them at boca bearing for 25 dollars or something like that .i made my own axles here
http://www.rcuniverse.com/forum/m_38..._7/key_/tm.htm
you need to scroll down to see all the parts used and once you use them you wont go back to the original parts any more