4 speed transmission question

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Joined
Nov 14, 2024
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2
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2
Location
long island
Hey guy I have a 1980 hj with an f engine and 4 speed trans. Looking to replace transmission oil. I found on here capacity of 6.6 PINTS? Not quarts? Also SAE 90 oil. What is recommended for these trains. Gl5, gl4? Synthetic?
 
There's 2 pints in a quart. I usually fill until lube comes out of the fill hole. Gl4 is recommended because it is friendly with the yellow metals inside the tranny.
 
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