The Drive Side is a left hand thread, or opposite the NDS.
Is this a cup & cone type or cartridge?
IF yhe former, you can find a spindle here-
http://www.loosescrews.com/index.cgi...id=76674604930
and cups here-
http://www.loosescrews.com/index.cgi...id=76674604930
That spindle worked on my 1991 820.