John Deere 325

[Robert Paben]

I have a John Deere 325, wheel machine, cab, heat, A/C, standard flow hydraulics with auxiliary outlets, with the exception of a case drain return.
All the motor attachments I look at require a case drain.
Can I put a case drain on my machine and where can I find parts to do so. I've looked and have had no success. Yes I've contacted the Dealer.