Yes what I am saying is I believe this pulley shown in pic may have been taken from behind PTO clutch on engine , and put on the drive shaft on rear end.. It is 4" now
Remember this was a Hydro until the gear drive was swapped and the idler pulley is now the clutching pulley. it is operated by the original Brake peddle that is on the left side of the tractor ..unlike the regular Gear drives that have two separate peddles. In this case one peddle is doing both.( Not unusual for other brands of the garden style tractors)
It is useable , but a pain when all you can easily use is lo range in second and reverse. Hi range in reverse is like a road gear in smaller areas . way too fast!
the old 110 series I got with it does have the other peddle,If I need, or should change it over.
The parking brake locking system is gone off both tractors. ( Not really that important for me though.)