whos done the 4tec carrier mod to their rustlers?

[lincpimp]

Yep, the vxl uses 5x11x4 bearings. Get the 5mm id teflon washers to take up the slack. You will see how many you need when you get it assembled. I would put 1 between the hex and the outer bearing, and the rest on the inside. That will help the bearings out, as a bunch or shims on the outside just adds leverage to the bearings.