Unfortunately, the ZD model cannot mount in a similar fashion to the ZG model. Kubota ZD's battery at the back-right prevents our pivot bolt from installing.
Our universal ZTR kit can can be bolted to the underside of this machine. This particular mount is recommended for homeowner use only. Attached is a schematic diagram of the unit; note that the small L bracket will need to be bolted to the underside of the frame - between the two drive tires. The following link will show the kit installed on the TimeCutter:
Sample Photo (note center picture/L brackets would mount to frame between drive tires)
For additional information regarding this product:
Schematic Drawing
Mounting Instruction Brochure
Determining Roller Width
Limitations you should be aware of