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Rear Diff. Flush?

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Old 12-18-2006, 02:06 PM
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Originally Posted by 98ws61le
for 99+ you do not need the additive
Actually, for the 2000+ Torsens you don't need the additive (unless you get the "rusty screw" sound). The '98-'99 Auburns absolutely need the friction modifier to work properly. This is given one still has the stock diff installed, of course.
Old 12-18-2006, 04:16 PM
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I just installed new axle bearing/seals in mine. I used 2 qts of RP oil and a rear end gskt. Total for all was about $60 . I do not know what they charge me for the oil, but it musta been free. LOL. I know the bearing and seals was about $45.

With the torsion no additive is needed. I put one in my truck and only used dyno oil for it and it is smooth as glass.
Old 12-19-2006, 09:26 PM
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Damn... now I have to actually hit up a dealership for the slip additive? Bastards. That is too much effort for me. Looks like I'll be stopping on my lunch hour tomorrow.
Old 12-19-2006, 09:30 PM
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yep $7.99

Originally Posted by Kalgorn
Damn... now I have to actually hit up a dealership for the slip additive? Bastards. That is too much effort for me. Looks like I'll be stopping on my lunch hour tomorrow.
Old 12-19-2006, 09:43 PM
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That's not terrible. I just hope they have it on hand when I go. Am I just asking for limited slip additive for a '99 Camaro?
Old 12-19-2006, 10:15 PM
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yep, i just told them i wanted rear diff. LSD additive. They told me i didnt need it, and i told them i didnt care and that i wanted it my car.
Old 12-19-2006, 10:47 PM
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how often should you change the rear diff oil?
Old 12-19-2006, 11:13 PM
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yeah, i went synthetic fluid when i did my rear diff fluid change and it was very quiet but when i added the lsd fluid it was even quieter...worth the 8 bucks to me.,.. i changed mine about every 20k
Old 12-19-2006, 11:13 PM
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dont really need to do it that much though, just for my own peace of mind
Old 12-20-2006, 11:52 AM
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Mmk. I'll be getting the LSD additive soon. Do you put the additive in first and then fill it with the gear oil? I would assume the whole bottle of LSD additive should be in there, right?
Old 12-20-2006, 11:58 AM
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Put the additive in there first and then fill w/fluid.
Old 12-20-2006, 06:46 PM
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Check this site out kaldorn, its badass. i believe its got a how-to on the rear diff. flush...... www.installuniversity.com click on install doc.

Originally Posted by Kalgorn
Mmk. I'll be getting the LSD additive soon. Do you put the additive in first and then fill it with the gear oil? I would assume the whole bottle of LSD additive should be in there, right?
Old 12-20-2006, 06:58 PM
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You rock.
Old 12-20-2006, 07:34 PM
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yeah i thought it was a sweet web site, a lot of stuff i want to do to my car is on there.
Old 12-20-2006, 11:48 PM
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i <3 that site, i'm gonna visit it every day now.
Old 12-21-2006, 12:17 AM
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LOL me too, ive done read everything on that site. I just like how detailed it is and how clear the pictures are.

Originally Posted by LebaneseShowoff
i <3 that site, i'm gonna visit it every day now.
Old 12-21-2006, 02:46 PM
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Originally Posted by dailydriver
Actually, for the 2000+ Torsens you don't need the additive (unless you get the "rusty screw" sound). The '98-'99 Auburns absolutely need the friction modifier to work properly. This is given one still has the stock diff installed, of course.
im have to nicely disagree with you on one point 1999 was the first year of the Zexel-Torsen from factory........ also at that point the y2y option by slp changed from the Zexel-Torsen HD to the Aurburn Pro

"The old disc-type limited slip differential (Auburn) was replaced with a Zexel-Torsen torque sensing limited slip differential. The new differential requires the use of synthetic differential fluid because of its design. The slip-limiting uses metal-to-metal contact inside the case and thus requires the use of the more "slippery" synthetic lubricant." quote from http://tech.firebirdv6.com/general.html

[url] http://www.epinions.com/auto_Make-1999_Chevrolet_Camaro/display_~full_specs [url]

Last edited by 98ws61le; 12-21-2006 at 03:43 PM.
Old 12-22-2006, 11:57 AM
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Originally Posted by 98ws61le
im have to nicely disagree with you on one point 1999 was the first year of the Zexel-Torsen from factory........ also at that point the y2y option by slp changed from the Zexel-Torsen HD to the Aurburn Pro

"The old disc-type limited slip differential (Auburn) was replaced with a Zexel-Torsen torque sensing limited slip differential. The new differential requires the use of synthetic differential fluid because of its design. The slip-limiting uses metal-to-metal contact inside the case and thus requires the use of the more "slippery" synthetic lubricant." quote from http://tech.firebirdv6.com/general.html

[url] http://www.epinions.com/auto_Make-1999_Chevrolet_Camaro/display_~full_specs [url]
I may be wrong, but I distinctly remember getting the factory brochure with the exclusive changes to the 2000s. The first thing mentioned was the change to the Zexel Torsen diff. Maybe you're calling it a '99 model year change because they were released in the fall of '99??
Yes, I know about the Auburn Pro, but that was only available from SLP on the SSes and Firehawks, as an option .




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