Removing 33 Years of dirt on a Miata transmission

I have found this the most effective way to clean years of caked on road grime I’ve tried many other methods and this is by far the most successful.
Track: Sub Urban - Cradles [NCS Release]
Music provided by NoCopyrightSounds.
Watch: Sub Urban - Cradles |
Free Download / Stream: ncs.io/CradlesYO

[@cinna2253]

What you use to clean it?

[@Nickorochy]

Purple power and elbow grease