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#3
03-28-2006, 07:25 PM
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Re: Differential fluid
Power steering fluid
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1994 3.4L Chevrolet Camaro - No more 2006 Hyundai Sonata 
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#4
03-28-2006, 08:14 PM
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Re: Differential fluid
if it's a new differential use some synthetic... if not I'd use regular...
Use gear oil, AKA manual transmission fluid... I'd tell ya what weight I use but I don't remember lol
__________________
97 Camaro - 2.077 60', 14.745 @ 92.20 - still down, one year later. 194k miles-160* thermo-V8 shocks/springs (V6 rear springs)-3" Magnaflow !cat (3" dynomax bullet) back-SLP CAI-stock boxed LCAs-poly tranny mount and torque arm bushing-custom HPTuners tuning-4.10s/eaton/TA girdle-3.5" alum DS-spohn LCA brackets-prostar skinnies 179.75 RWHP, 204.52 RWTQ ON ITS WAY: MORE R.I.P. Andy 87 Benz 190e - DD 01 EX250 - still gotta get my license for this thing
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#5
03-28-2006, 08:16 PM
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Re: Differential fluid
gear oil is 80/90 gear lube
__________________
1994 3.4L Chevrolet Camaro - No more 2006 Hyundai Sonata
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#6
03-28-2006, 08:19 PM
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Re: Differential fluid
There are different weights... but mines somewhere aroudn there.
If it's posi/limited slip don't forget the additive
__________________
97 Camaro - 2.077 60', 14.745 @ 92.20 - still down, one year later. 194k miles-160* thermo-V8 shocks/springs (V6 rear springs)-3" Magnaflow !cat (3" dynomax bullet) back-SLP CAI-stock boxed LCAs-poly tranny mount and torque arm bushing-custom HPTuners tuning-4.10s/eaton/TA girdle-3.5" alum DS-spohn LCA brackets-prostar skinnies 179.75 RWHP, 204.52 RWTQ ON ITS WAY: MORE R.I.P. Andy 87 Benz 190e - DD 01 EX250 - still gotta get my license for this thing
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#7
03-29-2006, 02:52 AM
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Re: Differential fluid
Quote:
 Anyways, how do I tell the difference between LS and a standard gear? I'm pretty sure whatever is on the car is still stock.
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#8
03-29-2006, 10:01 AM
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Re: Differential fluid
Mobile 1 synthetic 80w gear oil is what I would use. Make sure to get a good gasket. It may seep a little since its synthetic but it good stuff to use. The only difference in oil between posi and not posi it whether or not to add the additive. And pretty much all that the additive is is a little bottle of synthetic oil. There may be differences between formulas but essentially thats what it is. Some people who use full synthetic gear oil to begin with do without the additive but I would just because I paranoid.
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92 z28 camaro 5.7 TPI current - slp intake runners and base-BBK 52mm throttle body-MSD 8.5mm wires, blaster coil, and 6AL Box-edelbrock headers-160 degree stat.-hotchkis strut tower brace waiting in the garage - LQ4, milled heads 317 casting (10.5 to 1), hardened pushrods, ported LS6 oil pump, manley dual spings with titanium retainers, MTI X1 cam, hawks longtube headers 
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#9
03-29-2006, 10:14 AM
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Re: Differential fluid
The limited slip formula replenishes some of the clutch pack friction material that was lost when draining the case.
For wieither or not you have an open diff or not there is an rpo code sticker under the console armrest. Somewhere on there if you see, I think it's G80 or G85, soemthing like that it's a lsd (which I believe most Irocs were). Do a search ont he forum, Erik (89IROC&RS) mentioned the exact code number a few times. My memeory is not what it used to be.
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#10
03-29-2006, 10:34 AM
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Re: Differential fluid
__________________
92 z28 camaro 5.7 TPI current - slp intake runners and base-BBK 52mm throttle body-MSD 8.5mm wires, blaster coil, and 6AL Box-edelbrock headers-160 degree stat.-hotchkis strut tower brace waiting in the garage - LQ4, milled heads 317 casting (10.5 to 1), hardened pushrods, ported LS6 oil pump, manley dual spings with titanium retainers, MTI X1 cam, hawks longtube headers
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#11
03-29-2006, 11:12 AM
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Re: Differential fluid
or jackit up so the rear wheels are off the ground, put it in neutral, and spin one wheel... if the other wheel spins youve for an lsd, if it doesnt you either have an open diff or a broken LSD
__________________
97 Camaro - 2.077 60', 14.745 @ 92.20 - still down, one year later. 194k miles-160* thermo-V8 shocks/springs (V6 rear springs)-3" Magnaflow !cat (3" dynomax bullet) back-SLP CAI-stock boxed LCAs-poly tranny mount and torque arm bushing-custom HPTuners tuning-4.10s/eaton/TA girdle-3.5" alum DS-spohn LCA brackets-prostar skinnies 179.75 RWHP, 204.52 RWTQ ON ITS WAY: MORE R.I.P. Andy 87 Benz 190e - DD 01 EX250 - still gotta get my license for this thing
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#13
03-29-2006, 02:23 PM
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Re: Differential fluid
Yeah, I was just kidding when I said power steering fluid...
__________________
1994 3.4L Chevrolet Camaro - No more 2006 Hyundai Sonata
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#14
03-29-2006, 04:58 PM
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Re: Differential fluid
Is this a Borg Warner 9-bolt? Many WS6 cars between 1985 and 1988 came with them. It's a stout axle. It still uses cone clutches for the slip control, and requires GM1052358 friction modifier additive - Even with synthetics.
As for the lubricant itself, even if it is old, Mobil 1 75W90 (M2198-YP) is the only way to go. You'll improve efficiency and reduce drivelime losses on even an old, loose rear end. I'd suggest you consider the same lubricant package for even a 7.65 Saginaw 10-bolt, except drop the additive if it's an open diff.
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#15
03-29-2006, 08:56 PM
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Re: Differential fluid
Quote:
 it was funny though. Blue Bowtie: I am actually not sure what is on the car because it is in storage yet and I did not own it long enough last year to even mess with anything. From what Morley was saying though, it sounds like it *should* have a Saginaw 10 Bolt LSD.
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