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Gear Oil
I know I have seen this post before but I can't find it. Please show me were it is or we can start a new thread on it. I have a 5 speed 1980 us model and am going to put new gear oil. "CHOOSES" there is alot. I have a liter of 75w 140syn Mobil 1 it looks good and in some stuff surpasses standards but one thing is missing and I don't know what it is (Hypoid oil) what is it
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03-20-2009, 01:11 PM
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Registered
Join Date: Oct 2008
Location: Buena Park, CA
Posts: 247
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http://yarchive.net/car/hypoid_gear_oil.html
I have a 78 5 speed w/LSD and I just replaced whatever the PO's had in there with Swepco 80-90 and am quite pleased. It seems a bit quieter overall and my shifts into second are much improved, especially when cold. Still not a crisp and modern gearbox by any stretch of the imagination but much better than before. |
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03-20-2009, 01:37 PM
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Network Native
Join Date: Jan 2007
Location: SoCal
Posts: 10,349
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When it comes to oil, pick your personal poison.
I have always used Redline in manual transmissions, but I forget what the mix is for the LSD 928 of plain 75w90 and 75w90NS. |
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03-20-2009, 01:53 PM
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Thanks for the link good info. How would i know if I have LSD on my 928
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03-20-2009, 05:32 PM
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Network Native
Join Date: Jan 2007
Location: SoCal
Posts: 10,349
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Sure test, jack up the rear and turn one wheel by hand and see if the other goes the same.
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03-20-2009, 06:18 PM
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Join Date: Sep 2008
Posts: 149
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Does the LSD use any type of additive in the gear oil or an LSD specific oil like American cars with posi rears?
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03-21-2009, 04:35 AM
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Registered
Join Date: Oct 2008
Location: Buena Park, CA
Posts: 247
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It depends on the oil. Swepco says you don't need to use a friction modifier for LSD's with their oil, but you'd need to check the manufacturers recommendations.
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03-21-2009, 08:29 AM
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