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T-19 Fluid

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Old Mar 23, 2006 | 12:59 PM
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Question T-19 Fluid

I have a T19 4 speed in my 86 F350. I was wondering if anyone knows what type of fluid these transmissions normally use? I just need to top mine off. Also, what is the recommended fluid in the sterling 10.25 rearends?
 
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Old Mar 23, 2006 | 04:10 PM
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Kenworth
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Take the plug out stick your finger in or get something to get a sample of the fluid if its red and thin then its ATF if its thick and brown and has a strong smell 80w-90.

Most likely with a old Borg Warner 4spd its 80w-90 gear oil.
 
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Old Mar 23, 2006 | 07:07 PM
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Dave Barbieri
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The T-19 runs 75W90 gear oil. Redline makes a synthetic gear oil - MT90 - that is a direct replacment for 75W90. You can find more info at redlineoil.com. Good stuff.
 
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