How to add oil and what kind of oil to transmission?

1980 CHEVROLET CITATION
514,611 MILES • 2.8L • 6 CYL • 2WD • MANUAL
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KATHERINE JORDAN
  • MEMBER
  • 1 POST
Gearing when shifting is a bit stiff.
Mar 15, 2020 at 11:44 AM
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ASEMASTER6371
  • CERTIFIED EXPERT
  • 52,796 POSTS
Good afternoon,

the fluid is 75-90 gear oil and the plug is in the picture below. Check out the diagrams (Below). Please let us know if you need anything else to get the problem fixed.

Roy
Mar 15, 2020 at 4:06 PM