Sorry,My poor English.
I am using Losi Wheel(rear only).
Changed to tamiya TA04 hub,Duruga(TRF501X) rear axle and bone.
And Cut rear lower arm and ball-end to keep track width...
(4/6 Add parts List and photos)
rear wheel axle (BU2) 9804300
rear wheel washer(BP3) 9804305
(
http://www.tamiya.com/japan/download...al/trf501x.pdf)
TA04 rear upright:
http://www.tamiyausa.com/product/ite...oduct-id=50869
70mm swing shaft:
http://www.tamiyausa.com/product/ite...uct-id=9805979
lower sus-arm cut width =3mm
ball-end cut width =1mm