John Deere 503 mower

/ John Deere 503 mower #5  
"Gear Oil" in 80/90 weight is the standard. I would imagine it would work fine in your mower also. Get it at Wal mart or TSC store or any auto store.
 
/ John Deere 503 mower #6  
IF it wont hold gear oil, some ppl use 'corn head' grease

brian
 
 
 
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