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Old 10-30-2012, 10:23 AM   #1
1972SUPERSB
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What type of rear end gear oil do I need ?

I am wondering what type of gear oil I will need for my rear end? I have a 12 bolt 3.73 non posi. I've heard 90w but not sure. Also how many quarts will it take? Thanks
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1972 Cheyenne Super SWB 350, Auto, Bucket Seats w/Console, Tach, Factory A/C, P/S ,P/B, Tilt

1998 Chevy 1500 Ext Cab 5.7, Pewter w/blue interior
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Old 10-30-2012, 10:55 AM   #2
truckster
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Re: What type of rear end gear oil do I need ?

About 2 quarts of 90w.
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Old 10-30-2012, 10:57 AM   #3
1972SUPERSB
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Re: What type of rear end gear oil do I need ?

Quote:
Originally Posted by truckster View Post
About 2 quarts of 90w.
Cool thanks!
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1972 Cheyenne Super SWB 350, Auto, Bucket Seats w/Console, Tach, Factory A/C, P/S ,P/B, Tilt

1998 Chevy 1500 Ext Cab 5.7, Pewter w/blue interior
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Old 10-30-2012, 02:22 PM   #4
Stocker
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Re: What type of rear end gear oil do I need ?

You can also use 80W90 or 75W90 (my favorite, in synthetic).
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Old 10-30-2012, 02:45 PM   #5
cdowns
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Re: What type of rear end gear oil do I need ?

synthetic oil is worth the little extra by far
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