Overdrive Diff - Fits - Traxxas TRX4m

Use at your own risk, this is what I came up with to add overdrive to my trx4m. I would recommend printing with something strong such as ppa-cf. This changes the diff spool gear count from the stock 24 down to 20. Meaning that the axle with this gear in it will spin faster than the axle without it. I no longer have a TRX4m to test it with a material stronger than pla, I do know it worked fine with stock weight as long as you didn't bind it up. Adding brass or more weight to the truck made this break pretty quick when printed out pla.