My other link didn't work, so here is the other version.

-HPI Cup Joint 7x19 http://www2.towerhobbies.com/cgi-bin/wti0001p?&I=LXFYV1 (need 2)
-HPI Axle 5x41x7mm http://www2.towerhobbies.com/cgi-bin...?&I=LXFYU6&P=7
-HPI Dogbone 7x86mm http://www2.towerhobbies.com/cgi-bin...?&I=LXFYU8&P=7
-HPI Screw Shaft M4x2x12mm http://www2.towerhobbies.com/cgi-bin...?&I=LXDLG8&P=7
-5x8mm washers (for shimming axle) http://www2.towerhobbies.com/cgi-bin...?&I=LXJJ88&P=7


Optional:
-HPI Heavy Duty Cup Joint 7x19 http://www2.towerhobbies.com/cgi-bin...?&I=LXJEZ3&P=7 (need 2)