My 1997 F3060 has what I think is somewhat rare RC72R-F30 Rear Discharge Deck and was just recently told by a dealer that Kubota is no longer selling replacement gearbox!
I was just looking to buy a spare gearbox but was unable to find anything offered online by the gearbox supplier either (Superior Gearbox Company, Stockton, MO) - in all fairness I never phoned them since I decided to look for alternatives first since the last Kubota list price for replacment was $631.39 (when it supposedly was still available)!
1. Superior 211ADF 189 6 Gearbox:
View attachment 704511
2. It was easy to find a Chinese made replacement gearbox on the eBay for $135
It is rated for 40 hp at 1500 rpm - the mower PTO runs at 2500+ rpm normally.
We will put some hours on it and update on longevity later - so far only about 3 hours of use.
View attachment 704509
3. The fit was perfect:
4. Shields etc. in place:
Like was said above this is just a spare gearbox, but I also want to modify the OEM gearbox input shaft and will machine 1/4" key-way & eliminate the shear bolt altogether.
The shear bolt only arraingment is causing a loose / sloppy fit in-between the driveshaft yoke and the gearbox input shaft.
I don't like buying Chinese stuff but unfortunately was not left with many other choices I could find and would have paid the OEM list price if it had been available!
Good to have alternatives & some competition!