› Forums › Reference › Tuning & upgrades › 3A compatability
if you’re putting a syncro gearbox on apparently it can foul the block? but i’ve also heard you can grind it back to clear but not sure if that’s a great idea..
bubbel blocks foul the rod change gearbox. i ground a 3A back and it lived a life full of abuse and it never caused a problem, also did same to a 6a.
Thanks for the info.