L48 pump issues

[BilRud]

I'm new an know I,m doing something wrong, I wanted to ask some question. but found no options to do that so could someone help me with that?
I have a L-48 Backhoe I dont use it much but I have had two hyd oil pumps strip splines on pump an coupling that makes pump turn.this time they sent wrong coupling with right bearings it was large an had no place for bearings an cost $270.00 an pump was $1000.00 plus tax .Is there a cheaper place to buy parts? name an phone no please.an has anyone heard of a recall or upgrade to this system? Kubota wont tell me anything except price of new one.
Thanks for any help
BilRud

 

[rbargeron]

For the main front pump, the factory parts list shows there two versions of the shaft from the engine - one for serial numbers up to 60260 and the other for 60261 & up. Hope this helps.