My Posi is Not Working

[kevm14]

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Originally posted by ebaker:
Does the friction modifier increase the fluid's coefficient of friction or decrease it?

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According to this,

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when you change the fluid, leave out the friction modifier. this will help the limited slip function come back. if it comes back strong and you start to get popping while turning, then you can go back to add some modifier.

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it decreases it. So apparently I shouldn't be using ARX to bring back my pinion seal. What else should I do? I don't feel like R&Ring the carrier/gears just to do a stupid seal. Or should I just live with the leak and top it off on a regular basis?

 

[kevm14]

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Originally posted by MolaKule:
I think you misunderstood previous discussion.

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No, I was responding to these:

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But I would never put it in a "posi" differential

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it might not have been the best move

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I would get that out of my differential if I were you

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Anyway, it's a 95 Z28 with 151k and a history of leaky pinion seals. I think a previous owner somewhere along the line had the whole rear rebuilt, along with a new seal. This is the 7.5" 10 bolt. Or is it 7 5/8" ring gear. I dunno. Interestingly, my Caprice with 206k and an 8.5" 10 bolt does not seem to have a leaky pinion seal. No G80 (posi) and I added some ARX to that one, as well. Luck of the draw, or a design problem in the Camaro, I guess.

I'm gonna hit up Jiffy Lube today after work for their differential service. For $40, I think they shove a hose into the fill hole, suck out the old lube and fill it up with regular stuff. I think that will suffice. Beats laying on the ground, fighting with the diff cover-to-gas-tank clearance, new gasket, etc. And as always, I will be in the shop, right next to the car, watching their every move (preemptive jiffy lube defense so I don't get an earful).

 

[Mike_dup1]

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Originally posted by bypassfilter:

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Originally posted by Mike:
There is no magical cure for worn out parts like seals.

I think the benefits of using Auto RX are greatly exaggerated. I have used it in 2 vehicles many because they had high miles. After the time period, I cut open the oil filters expecting to find a lot of crude. Found nothing with the naked eye. What I did notice during the time the stuff was in one engine was that is was noisy. Once the new oil was in, noise went away.

So my opinion is that is may have a purpose but I think a lot of folks are using it when there is no need. I have heard some recommending people use in vehicle with low miles. They assume it can't hurt but I say Leave well enough alone!

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Since you are an Amsoil shill, i would expect you WOULD say that.

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Thanks for the insult! Don't you have anything else to add to the thread, just throw out insults tells a lot about you and what your motives are.

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Shill

One who poses as a satisfied customer or an enthusiastic gambler to dupe bystanders into participating in a swindle.

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[MolaKule]

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So I am some what skeptical of the Auburn not getting along with Synthetics statement.

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I used synthetics in my Auburn (Redline and Amsoil in '86 racing Burb) without a problem, both worked well.

 

[Tremo]

I have one of the older BW 9-bolt posi rear ends in my 88 F-body. I run a 50/50 mix of Redline 75W-90LS and RP MaxGear. Both have the LS friction modifier built in, so I don't use any additional additives. I have no chatter going around corners.

If you add too much friction modifier to an LS rear end, you will LOSE the LS function, the clutches/cones will just slip.