http://www.ebay.com/itm/Hyper-7-Fron...item20e617a273 would these be better? I believe these are the diffs UE uses in their ultralites.
http://www3.towerhobbies.com/cgi-bin...?&I=LXCVT8&P=7 this is the gear leading to the center shaft? what size bearings for this diff?