whos done the 4tec carrier mod to their rustlers?

[blueb8llz]

i heard it adds 1.5 degree rear toe in and makes the rustler handle sooooo much better.
the thing is, can you tell me if i got this correct?
from what i know, im suppose to order a 4 tec carrier:
http://www3.towerhobbies.com/cgi-bin...?&I=LXJK19&P=7

and two flanged bearings size 5x11x4. can someone link me to a set please? the only set i found cost $40 hahah.
or is there another way to do this mod? some one says to use teflon washers to use as spacers behind the carrier.
is this all i need?