I would say you normally use an EP grease for gears MM (extreme Pressure),it's just if you used a HTB grease the motor
would most likely wear out before the gearbox.

https://passiontech.com.au/index.ph...e-bearing-grease-htb/category_pathway-63

https://www.machinerylubrication.com/Read/30896/grease-gear-lubrication

Originally Posted by MowingManiac
Doubt those gearboxes would work with the Honda which has a much thinner rectangular end on the driveshaft. Haven't priced a new Honda gearbox but suspect it would be a LOT more than $22.

I just put that gearbox pic up as an example of how cheap the parts are ,the Honda part is $23.69 with free post.

Cheers
Max.

Attachments
Honda.png (113.01 KB, 83 downloads)