[danielc79]

Originally Posted by jas21373

Here some that I found on EbayUS ,should be able to get these to fit with a 17t pinion maybe

one tooth on the oinion is equal to 3 teeth on the spur

http://cgi.ebay.com/Traxxas-70T-Spur...item4838cfb657

http://cgi.ebay.com/Traxxas-72T-Spur...item518f533f9c

but these are for a t-maxx, they are different than the e-maxx 3905 spur gears

found it, these were of the 4472 part number from traxxas, 4472-R is the one i needed, so thanks, almost right : )