I looked at those sets but they dont use a bearing at the top wher the servo conects so its gonna wear and not center correctly etc after a little time.
To cure this problem you can also use a JAZRIDER HPI BULLET MT/ST Alloy crank set, Its only about £12
Bullet steering kit
You just use the bearings and the cranks, along with the FTX ackermann. You need to put the two stock bearings on the posts first, then add the cranks with ballraces intstalled and a few traxxas washers (TRX1985) or similar 5x8 shims to take up the slack under the top plate. You need to use a direct servo saver on the servo. The traxxas 2wd one will fit with a bit of dremmeling to the chassis, or the Tamiya high torque servo saver kit (in picture) or associated b6 saver work extrememly well to.
As the cranks run on ballbearings, there is no slop and steering is direct, smooth and actually centers correctly everytime too. I have done this mod to the carnage and vantage, and also my
outlaw too. I have also fitted it to a mates carnage NT. It works even better if you add decent metal geared high speed/torque servo too.😁
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