D44 oil
Drifting
Joined: Dec 1999
Posts: 1,315
Likes: 27
From: Central Florida
Drifting
Joined: Dec 1999
Posts: 1,315
Likes: 27
From: Central Florida
Pro
Joined: Sep 2008
Posts: 694
Likes: 27
From: St James New York
What Redline diff oil did you use for your D44A diff? Did you suck the old fluid out of the fill hole? I don't see a drain plug.
What does GM spec? 75w/90??
For those that used the GM friction modifier ~ how much?? Thanks.
What does GM spec? 75w/90??
For those that used the GM friction modifier ~ how much?? Thanks.
Drifting
Joined: Dec 1999
Posts: 1,315
Likes: 27
From: Central Florida
that I drilled and tapped.
Redline also makes friction modifier, but I never needed it.
Suck the old fluid out and fill with oil, Drive the car in a parking
lot in tight circles and see if you get "chatter" from the rearend.
If you get chatter, add 1/4 bottle of modifier. repeat until you get no noise.
I never needed to add modifier with Redline. Keep in mind that
I autocross my car and need the LS to work. If you car is a DD,
just dump in a bottle of Friction Modifier.
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Le Mans Master
Joined: Sep 2003
Posts: 5,874
Likes: 0
From: Littleton CO
It apparently originated as a Gordon Killebrew recommendation, and based on the posters who stated so, I have no reason to doubt it.
Last edited by jrp; Oct 16, 2008 at 11:48 PM.
Drifting
Joined: Dec 1999
Posts: 1,315
Likes: 27
From: Central Florida
Using 2 bottles won't hurt anything, it will make you Limited slip
not work well (Slip too much). One bottle of GM is 4% friction modifier, (GM spec.)
Redline has 2%, and I have never added more than that.
Since I autocross, I want my LS to work. I can't imagine why
Gordon K. would recommend using more. Do you know why?
not work well (Slip too much). One bottle of GM is 4% friction modifier, (GM spec.)
Redline has 2%, and I have never added more than that.
Since I autocross, I want my LS to work. I can't imagine why
Gordon K. would recommend using more. Do you know why?
It's not just me. Using two bottles is practiced by many people here, as demonstrated in at least half of the threads I clicked on in my search just now. Maybe it's overkill, but I've never seen anyone else even hint that it hurts anything.
It apparently originated as a Gordon Killebrew recommendation, and based on the posters who stated so, I have no reason to doubt it.
It apparently originated as a Gordon Killebrew recommendation, and based on the posters who stated so, I have no reason to doubt it.
Instructor
Joined: Apr 2007
Posts: 225
Likes: 1
From: Highland Village texas
Using 2 bottles won't hurt anything, it will make you Limited slip
not work well (Slip too much). One bottle of GM is 4% friction modifier, (GM spec.)
Redline has 2%, and I have never added more than that.
Since I autocross, I want my LS to work. I can't imagine why
Gordon K. would recommend using more. Do you know why?
not work well (Slip too much). One bottle of GM is 4% friction modifier, (GM spec.)
Redline has 2%, and I have never added more than that.
Since I autocross, I want my LS to work. I can't imagine why
Gordon K. would recommend using more. Do you know why?
iagree:
I use one bottle of gm ls additive with mobil 1 75-90 in my dana 44 and its nice and quiet in turns. No reason to add anymore then you need.
Burning Brakes
Joined: Nov 2006
Posts: 1,102
Likes: 1
From: Portsmouth Virginia 396LT4 435RWHP/400RWTQ Best so far 11.26 @ 123mph
Joe,
I use Amsoil synthetic 75-90 with one bottle of limited slip additive following intial break-in of new gears,clutches, and bearings with conventional GM gear oil after a couple hundred miles.
Rick
I use Amsoil synthetic 75-90 with one bottle of limited slip additive following intial break-in of new gears,clutches, and bearings with conventional GM gear oil after a couple hundred miles.
Rick
Le Mans Master
Joined: Apr 2005
Posts: 6,413
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From: The Old Dominion
I use Mobil 1 75w-90 and put in one bottle of the GM additive.
Le Mans Master
Joined: Sep 2003
Posts: 5,874
Likes: 0
From: Littleton CO
I have had no indication of too much slip, but it certainly doesn't get as much of a workout as autocross.
The oil I got was the original part number, at least, but it was a couple of summers ago. I wouldn't be surprised.
Premium Supporting Vendor
Joined: Aug 2001
Posts: 5,364
Likes: 38
From: King George VA
I use the AMSOIL Severe Gear Extreme Pressure Synthetic 75w90 in my 02 Z06 dedicated track car and 06 CTS-V daily driver. This fluid does have the additive in it and neither of my cars requires extra additive to prevent diff chatter.
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AMSOIL Dealer (Forum Vendor)
AMSOIL Preferred Customer Program (Members buy at Wholesale - a savings of about 25%)