Gearbox for brush hogs

[racer86y]

I have 2 5' brush hogs for my tractor.They seam to cut different.Are the gear boxes different ratio's?

 

[ptsg]

Could be. Any numbers on those gearboxes so we could compare?

 

[racer86y]

Could be. Any numbers on those gearboxes so we could compare?

I will look later today