RE: .28 in a funfactor? oh dear....
there are the pics from when i first looked at the centre diff arrangement [link=http://www.rcuniverse.com/forum/m_2430760/anchors_2430760/mpage_1/key_centre%252Cdiff/anchor/tm.htm#2430760]here[/link] but i still need to sort the centre shaft - need to add a pin to the end i had to cut, other than that i think i have all the bits - its time thats the issue now, this bloody house is killing me... theres just the fact that the spur is a 47t, so i may have to go bigger than 20t on the pinion to have a realistic top speed, not a prob, i just remembered that bit.
re tmaxx shafts - how were u going to get them to work at the diff end? i didnt think they fitted the cen diff cups?