A redux version of a mod I posted on the Discord originally. Uploaded to TurboDuck for permanence.
This mod reduces all transmission whine (except from reversing) by ~50% normally, or ~80% for the quieter option. It's at a volume that's still audible, but not louder than the engine audio. The main version is recommended since the quieter version can barely be heard.
Preview (of the main version)
If I messed something up, please report it. The quieter version was untested, and I don't use this mod when I play.