Tamiya ORV (car variants) Micro Servo Bellcrank steering

Recently, I started going through my RC collections and ran across a box of parts I purchased several years ago containing a ton of old Tamiya Frog/ORV parts. I decided to see just how much I could 3d print for one, as I had roughly enough parts to make 3 cars if I were able to make some things on my own. 

I thought something fun to take on myself would be the steering. So I set out to design something with a bellcrank setup to try and inprove upon the design if I could. I originally set upon a design with a full size servo and was pleased with the results, but it wouldn't fit under a frog body. So I got to thinking and did a little research. These things are so light weight at just around 3 lbs, I started looking at micro servos, comparing them to the trusty old Futaba 3004 and to my surprise, even the least expensive Mues servo was both faster and stronger. I used this one. https://a.co/d/0dQZghVm 

I used TA04 bellcranks, which I printed from HERE. I did open up the holes ever so slightly with a .1 XY hole compensation in Orca slicer to make the bearings (4 5x8x2.5mm) fit a little better. You could also more than likely use a stock or aluminum set, but I don't have those to test. They're also mounted upside down as you can see. They're held on with 2 20mm M3 screws.

I like to tap all of the holes for things I thread into plastic, so the holes for the bellcranks and servo mounting are sized as such to make them easy to drill and tap.

Then I used a servo saver designed for a  Arrma Grom, attached to a 2.5mm rod end. I then connect that to a 3mm rod end by use of the rod end I'm posting here. It's designed to take an axial 3x5mm ball, but I'm sure others will fit as well. It's also designed to be drilled and tapped with a 2.5mm bit. This will allow you to cut the head off of a 2.5mm bolt and thread it into both the 2.5mm rod end, and use a 3mm screw to attach it to the bellcranks. I also used some regular 3mm rod ends and threaded rod to connect the bellcranks so I could experiment a little, but the stock TA04 piece again should work just fine here.

I'm also posting 2 versions of the plate, one for the factory servo mounts, and one for those of you that may have already gone to a centered setup and don't want to disassemble your entire car just to try this. I've tried it with AmPro's centered servo mounts and it lines up perfectly.

So far it's holding up great and is much faster than a stock servo that you've probably had in there for 20 years like mine. I will say you'll have to raise up the frog body just a touch in the front to clear the servos saver, but that should be the only other mod you have to make. 

I hope I've explained everything well enough, but shoot me some questions if you need any other direction!