Stop the chatter ?
Melting Slicks
Joined: Aug 2000
Posts: 2,248
Likes: 1
From: Newland US
Re: Stop the chatter ? (MRWHOOPPEE)
MRWHOOPPEE,
You might try driving a dozen or so, low speed figure 8's, in the out back of WallyWorld's parking lot.
Hopefully that will help work the friction modifier into the differential clutch mechanism.
Good luck.
Mark
You might try driving a dozen or so, low speed figure 8's, in the out back of WallyWorld's parking lot.
Hopefully that will help work the friction modifier into the differential clutch mechanism.
Good luck.
Mark
Melting Slicks
Joined: Aug 2000
Posts: 2,248
Likes: 1
From: Newland US
Re: Stop the chatter ? )
MRWHOOPPEE,
Still, wouldn't hurt to give it a try. On a trip you probably didn't go around a lot of corners.
If that doesn't help, then the fix seems to be, go to GM non-synthetic differential gear lube + the friction modifier.
Maybe just a tad more of the modifier added to what's in there will do the trick.
Good luck.
Mark
Still, wouldn't hurt to give it a try. On a trip you probably didn't go around a lot of corners.
If that doesn't help, then the fix seems to be, go to GM non-synthetic differential gear lube + the friction modifier.
Maybe just a tad more of the modifier added to what's in there will do the trick.
Good luck.
Mark
Pro Mechanic
Joined: Oct 1999
Posts: 3,918
Likes: 1,461
From: South-Central Coast California
Re: Stop the chatter ? (MRWHOOPPEE)
Red Line 75W90 rear axle lubricant and the GM "Additive" are not compatible. Mixing of the two usually causes trouble.
Drain the diff and fill it with new Red Line 75W90, then road test the car. If you have limited slip chatter, add half a bottle of Red Line Friction Modifier. If you still have chatter add the rest.
The proper road test for limited slip chatter is to, first drive the car 10 miles to fully warm the axle, then find a parking lot and drive in tight circles at low speed. If you hear a squealing of chatter from the axle, use RL FM. If you don't do not add any FM.
Drain the diff and fill it with new Red Line 75W90, then road test the car. If you have limited slip chatter, add half a bottle of Red Line Friction Modifier. If you still have chatter add the rest.
The proper road test for limited slip chatter is to, first drive the car 10 miles to fully warm the axle, then find a parking lot and drive in tight circles at low speed. If you hear a squealing of chatter from the axle, use RL FM. If you don't do not add any FM.
Safety Car
Joined: Feb 2001
Posts: 3,569
Likes: 0
From: Greenville NC
Re: Stop the chatter ? (MRWHOOPPEE)
I put Redline in the rear end ( of the car :lol: ) along with the GM friction modifier and it chatters bad !!! Should I add more modifier to stop the chatter ?? :confused:
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Le Mans Master
Joined: Aug 1999
Posts: 5,411
Likes: 2
From: N Carolina 08 Z51 Coupe
Re: Stop the chatter ? (MRWHOOPPEE)
I am using the redline 75-90 with no additives and no problems.
Are you using the right version of redline? Redline has a NS version that is for old diffs or track use.
mike
Are you using the right version of redline? Redline has a NS version that is for old diffs or track use.
mike
Safety Car
Joined: Jun 2002
Posts: 3,635
Likes: 0
From: Ma
Re: Stop the chatter ? (MRWHOOPPEE)
I think I am having the same problem right now on my 98 feels like it is rubbing when I make tight turns into parking spots ect. I just changed my fluid I think it is time again. :smash:
Team Owner
Joined: May 2001
Posts: 36,836
Likes: 244
From: Dear Karma, I have a list of people you missed.
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15-'16
Re: Stop the chatter ? (Hib Halverson)
Red Line 75W90 rear axle lubricant and the GM "Additive" are not compatible. Mixing of the two usually causes trouble.
Drain the diff and fill it with new Red Line 75W90, then road test the car. If you have limited slip chatter, add half a bottle of Red Line Friction Modifier. If you still have chatter add the rest.
The proper road test for limited slip chatter is to, first drive the car 10 miles to fully warm the axle, then find a parking lot and drive in tight circles at low speed. If you hear a squealing of chatter from the axle, use RL FM. If you don't do not add any FM.
Drain the diff and fill it with new Red Line 75W90, then road test the car. If you have limited slip chatter, add half a bottle of Red Line Friction Modifier. If you still have chatter add the rest.
The proper road test for limited slip chatter is to, first drive the car 10 miles to fully warm the axle, then find a parking lot and drive in tight circles at low speed. If you hear a squealing of chatter from the axle, use RL FM. If you don't do not add any FM.
Good info! I've been using RL's 75W90 for over a year on my daily driver with no problems of any kind.
Team Owner
Joined: May 2001
Posts: 36,836
Likes: 244
From: Dear Karma, I have a list of people you missed.
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15-'16
Re: Stop the chatter ? (tshac)
Drain the dred line & install Amsoil Series 2000 Gear lube. :smash:
NO modifier needed,it's in it. :D
NO modifier needed,it's in it. :D
Robert
Thread Starter
Safety Car
Joined: Jun 2002
Posts: 4,122
Likes: 0
Re: Stop the chatter ? (Tx99FRC)
When i did mine w/ redline it chattered even tho it said it had modifier in it .Then I added GM modifier and it still chattered.? :confused: Now I have Mobil 1 and Gm modifier and no problems.
Melting Slicks
Joined: Oct 2001
Posts: 2,786
Likes: 49
From: Sun Devil Country
Re: Stop the chatter ? (tshac)
Dealer changed fluid (Mobil1/GM additive) due to a seal R&R under warranty. Three weeks later, the chatter returned. I switched to AMSOIL 2000 and walla, chatter was gone. :yesnod: