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Old 08-10-2007, 03:53 PM   #1
meknized
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Default What gear oil?

It's time for me to change my rearend oil and am wanting to know what gear oil all of you use and recommend. The car is street/strip and has the Auburn pro diff. Is any friction modifier recommended? I haven't changed the lube in about 6 yrs and have forgotten what was even in there?
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Blue/silver 89 GT, Coast 331, ported GT-40x heads, X cam, cobra intake, 70mm TB, 75mm bullet, mac intake, 24lb inj, 255 lph fuel pump, accufab regulator, pulleys, MSD coil, 6AL, 300+ wires, Tremec 5 spd. pro 5.0 shifter, FMS drive shaft, headers, X-pipe, flowmasters, auburn pro series posi. moser 31s axles,3:73s, etc. Best ET 12.02@112.5
a pic A vid of a run:http://www.youtube.com/watch?v=l9JMcErxML8
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Old 08-13-2007, 02:23 AM   #2
USMC302
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Default Re: What gear oil?

If you get some 90 weight Royal purple, it comes with a limited slip additive already so no need for friction modifier...
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Old 09-28-2007, 09:45 PM   #3
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Default Re: What gear oil?

Ok, I have the Royal Purple in the engine and tranny. How many quarts for the rearend?
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Blue/silver 89 GT, Coast 331, ported GT-40x heads, X cam, cobra intake, 70mm TB, 75mm bullet, mac intake, 24lb inj, 255 lph fuel pump, accufab regulator, pulleys, MSD coil, 6AL, 300+ wires, Tremec 5 spd. pro 5.0 shifter, FMS drive shaft, headers, X-pipe, flowmasters, auburn pro series posi. moser 31s axles,3:73s, etc. Best ET 12.02@112.5
a pic A vid of a run:http://www.youtube.com/watch?v=l9JMcErxML8
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Old 10-05-2007, 06:46 AM   #4
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Default Re: What gear oil?

I think it's two, maybe little more or little less, just fill until the fluid spits back at ya!
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