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> Trans Gear oil, What's the best
Jaiden
post Oct 7 2005, 06:07 AM
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So in my other thread I'm trying to tighten up my tailshifter slop and have drained the tranny to check the roll pin on the shift shaft.

I'm gonna have to fill it back up but want to know what's best to use in the tranny.
I would like to also know if any addatives are recommented to help out with seals/ syncros/ you know friction modifier that kind of thing.

Thanks in Advance!
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machina
post Oct 7 2005, 08:59 AM
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QUOTE (Cap'n Krusty @ Oct 7 2005, 09:51 AM)
Whatever you use, and I have used 80-90-140 for years, be sure you get straight GL 5! GL4, or anything that says on the label that it's compatible with anything else but GL 5, is gonna do bad things to your tranny. You also don't want any friction modifiers, because your synchros depend on synchros!
I've been repairing Porsche trannies for 35 years, and I've seen what the wrong gear oil can do. The Cap'n

I have some coastal 80/90 that says GL5,GL4,GL3

is that bad stuff?

someone here told me the coastal stuff works.
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Posts in this topic
Jaiden   Trans Gear oil   Oct 7 2005, 06:07 AM
jr91472   Do a search or you run the risk of starting a shoo...   Oct 7 2005, 06:17 AM
Jaiden   I've already searched and the general thing is...   Oct 7 2005, 06:33 AM
Bleyseng   Swepco is the hot gear oil for 901 trannys.   Oct 7 2005, 07:43 AM
tat2dphreak   a lot of people will say swepco, I'll just say...   Oct 7 2005, 08:03 AM
jr91472     Oct 7 2005, 08:15 AM
Jaiden   I guess that's what I'll look for Swepco.....   Oct 7 2005, 08:18 AM
Cap'n Krusty   Whatever you use, and I have used 80-90-140 for ye...   Oct 7 2005, 08:51 AM
synthesisdv     Oct 7 2005, 12:22 PM
SirAndy     Oct 7 2005, 12:28 PM
slivel   I just checked my collection of Porsche manuals. ...   Oct 7 2005, 12:58 PM
Jaiden   Of course I bought 3 quarts htt...   Oct 7 2005, 01:26 PM
914fan   When my trans was rebuilt by Carters in bigbear Ca...   Oct 7 2005, 03:39 PM
slivel   No, GL-5 does not designate limited slip use. Man...   Oct 7 2005, 05:41 PM
Dead Air     Oct 7 2005, 05:45 PM

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