Servo - Gear - MG90s for TRX-4 Differential and suspension

I used this gear adapter for my MG90s shifting servos on my TRX-4.
The original servo gears have 25 Teeth. The MG90s has 21 Teeth.
With this adapter you can use the rest of the original servo-saver-arms...
With a little pressure they will fit - even if your printer does not print super detailed (like mine)...