wow gotta say this site isn't what I thought it was, absolutely no replies. Guess I'm on my own. Better off to just junk the tractor I guess.

 

Is original PS pump shaft grooved where seal contacts it? I've never seen an automotive pump installed on a JD for PS but it could be possible. Would you isolate the power steering circuit from the tractors hyd reservoir?

 

Rebuilt pumps are 1 k with core
Depending on your skills
I would rebuild it myself
It really depends on what the inside looks like
The oil filter system on these old Deere was not the best
Lotta junk went thru
There is a lot of plumbing changes that have to be made before you hang a pump
Stick with original
You will only have to repair it once if done correctly

 

to be honest Davei think it's beyond fixing and the parts are unavailable from John Deere. I can't believe it'd be that hard to put an automotive style pump on, the steering is open center and there's only 2 lines pressure and return and the line that it got oil from would just get plugged off.

 

Logged into my Deere account
Need your serial number

You need to take pump apart
Check packing and pump drive gear shaft
Looks like the parts are available

 

No serial number required if tractor has open center power steering with hyd pump mounted to front RH of engine. Shaft & seal shown below.