Red line 75w140

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Apr 13, 2013 | 01:42 PM

Shortyno10

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Intermediate

Joined: Apr 2013

Posts: 48

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From: Thousand Oaks, California

Red line 75w140

Hey guys just bought my first vette. It's a '05 with 28000 miles and I'm sure none of the fluids have been replaced except motor oil. So my question is that the rear end clunks and I've read to change the fluid to red line or the gm spec fluid, so I bought 2 quarts of red line 75w140 synthetic fluid and a bottle of FMA, so do I need to add the FMA or just put the 2 quarts in and call it good?

Apr 13, 2013 | 03:11 PM

Boomer111

Race Director

Joined: Oct 2005

Posts: 14,999

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From: Bay Area Ca.

I use Redline 75-140 as it is, with the friction modifier already added by Redline.

As recommended by DTE Engineering the facility that built my 4:10 diff.

Apr 13, 2013 | 03:14 PM

cclive

Team Owner

Joined: Mar 2008

Posts: 21,502

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From: Southern Utah

If the Redline says that it already has the FMA in it, then I would just do that. You can always add a bit afterwards if needed, but you can't take any out if you add too much at first.

Apr 13, 2013 | 07:06 PM

Shortyno10

Thread Starter

Intermediate

Joined: Apr 2013

Posts: 48

Likes: 0

From: Thousand Oaks, California

Quote:

Originally Posted by Boomer111

I use Redline 75-140 as it is, with the friction modifier already added by Redline.

As recommended by DTE Engineering the facility that built my 4:10 diff.

Sweet just changed the fluid and no more clunking and noises comin from the rear. Thanks guys!

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