I got the hand brothers 3-link & chassis servo mount installed on my SCX10. It's a very well made unit and I was please as I installed it. However, because I am running the suspension "jacked up" there was a lot of bind in the steering at full droop. I could not even connect the drag link to the pitman, uh ...servo arm.
I also noticed that because I was running so high there was a lot of arc in the trackbar moving the axle to the driverside with droop and to the pass side under compression.
To solve the drag link bind, I decided to run some Vanquish high steer knuckles. That decision, led to the next problem ... the trackbar and drag link were at very different angles and would cause bump steer.
Solution to that .... raise the trackbar on the axle...
The knuckles are easy, so I'll cover how I modified my trackbar/3 link setup to work with the high steer knuckles.
Note that I installed longer shocks so this probaby is not a problem if your SCX10 is stock height. If your SCX10 is stock height and you want to lift it ... check out my upcoming SCX10 lift kit walkthrough.
1. The first step is to disassemble the front axle completely.
2. From there, you'll want to clearance the inside of your housing so you can fit a nut inside. this will help hold the trackbar mount on better than just the threads in the housing itself:
3. Next you will need to cut your axle link mount/trackbar bracket in two. You are going to separate the track bar mount from the 3 link mount so you end up with a little "L" bracket for the trackbar. The part of the bracket that attaches to the diff will hold just the top 3 link mount. The trackbar bracket will be mounted with spacers underneath it. Here are some shots that will give you the idea:
4. Lastly, reassemble the axle with the new knuckles. I used about 9mm of spacer under my trackbar bracket. That combined with my vanquish high steer knuckles worked out perfectly.
As far as strength, I've been beating on my rig for over a month now and it shows no sign of coming loose. If you wanted to add more structure, you could cut /drill/tap a small metal tab so both screws that hold the trackbar bracket to the axle would thread into something inside the housing. I'll do that in the upcoming months just as a precaution.