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Synchromesh oil getrag 5 speed question (Page 1/1) |
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zobari
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DEC 20, 02:18 PM
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Hi,
I've buy german tranny oil synchromesh RAVENOL. Below, I upload images, This oil is it compatible with my getrag 5 speed transmission v6 1988 fiero ?
Currently, I have filled my tranny with 5w30 castrol edge tibanium Last year and I want to change to synchromesh transmission oil.

 [This message has been edited by zobari (edited 12-20-2019).]
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zobari
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DEC 20, 04:04 PM
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I can see these gm reference :
GENERAL MOTORS 12345349 GENERAL MOTORS 9985648 GENERAL MOTORS 1052931 GENERAL MOTORS 12377916 GENERAL MOTORS 9985535 GENERAL MOTORS 12345577 GENERAL MOTORS 9986105
The webstie : ravenol web page
I think that's ok for getrag.[This message has been edited by zobari (edited 12-20-2019).]
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Gall757
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DEC 20, 04:34 PM
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Yes, 9985648 is the GM Synchromesh number.
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Blacktree
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DEC 20, 04:37 PM
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At least 3 of those part numbers are applicable to the Fiero gearbox (12345349, 12345577, and 9985648). So yes, that should be fine in your gearbox.
Side Note: These gearboxes originally used Dexron-3 ATF or 5w30 engine oil. But later the specification was updated to include Synchromesh oil. Synchromesh is better. You'll notice the difference.
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zobari
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DEC 20, 04:39 PM
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zobari
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DEC 21, 10:07 AM
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Hi,
I have another question. For the drain plug what is the diamater of the gasket ? I want to change and put a new gasket on this drain plug.
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