Input Oil Seal on most 45 hp Gearboxes

Slip Clutch Pack, Shearpin to Slip Clutch
The purpose of this is to change your shearpin rotary cutter in to a slip clutch rotary cutter.  Everyone hates busting shearpins and lining the shaft back up or busting a shearpin out in the woods and not having another one on you to put in it.
This takes care of that problem once and for all.

40 HP Smooth Input Gearbox

40 HP Splined Input Gearbox

75 HP Splined Input Gearbox

75 HP Smooth Input Gearbox

Heavy Duty Post Hole Digger Gearbox Rated for 75HP