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Old 2008-01-17, 10:18 AM   #13
Kevin M
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Join Date: Sep 2003
Location: Reno
Posts: 9,445
 
Car: '93/'01 GF6, mostly red
Class: 19 FP
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Quote:
Originally Posted by Dean View Post
Fluid is shared between the transmission and center diff, the front diff has it's own reservoir on the 6MT vs. the shared tranny, center and front on the 5MT.

Not having to worry about the front diff and having to deal with the DCCD makes the 6MT a different beast which is why I ask this question.

The 5Mt has actually shown a very good response to the lightweight shockproof despite the presence of synchros and both diffs. The main concern there is the wear on the front diff.

With the 6MT we only really have to worry about the impact of the shockproof on the DCCD.

Is it Clunky? Anybody else just running this?

I'm leaning toward a 50/50 mix of 75W90 NS and lightweight.

I wish I knew what was in it. Shockproof is whitish green, what color is the 75W90NS?
One fluid in the 6MT. The front diff may have a "reservoir" but it's not a separate system. DCCD is a sealed system not affected by the fluid you put in the gearbox. In my previous experience 75w90 NS is not bad, but synchros operate faster and smoother with Lightweight Shockproof. IIRC it looks like regular gear oil, just a bit lighter in color. Shockproof generally looks like toxic waste.
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