Do you have the pin on buckets or the Exchange mount?
I picked up a couple of Bobcat pin mount backhoe buckets at an auction. When I got them home a closer inspection showed the pin sizes and locations were different.
I took the numbers off the buckets and asked the parts manager at my dealer what they would fit. One bucket will fit a 709, 8709, 811 and 8811 backhoe attachments. The other bucket will fit a 607 backhoe attachment and 225, 325, and 328 mini excavators.
So the answer is the pin on buckets are not all the same. I don't know if the Exchange mount is the same on both the backhoe attachments and mini excavators.