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Author
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Topic: Is my rear end going south?
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92-5.0
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Member # 5961
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posted
 
 
At high speeds (like 100mph), my rear end makes a whinning noise. A fairly loud one. Is it a matter of time before my rear end goes out?
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GT40int,Mac70TB,C&L73Maf,24inj,AFPR,U/DPullies,KB Ram-air,Mac Hdrs,stock h-pipe,MAC cat-back,3:55gears,Pro-5.0 shifter,Ron Davis radiator
Posts: 35 | From: solano county | Registered: Aug 2005
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JohnB
Tech Moderator
Member # 969
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posted
Have you checked/changed the gear oil?
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1965 Shelby Cobra
1993 Cobra
2012 F150 Raptor
2020 GT500
Posts: 6523 | From: Orlando FL/Redding CA | Registered: Mar 2002
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92-5.0
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Member # 5961
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posted
No I havnt changed the gear oil. How much do I need? Also, should I use royal purple? Mobil 1? Also, do I need to add the friction modifier as well or do most of these synthetic gear oils suffice without it?
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GT40int,Mac70TB,C&L73Maf,24inj,AFPR,U/DPullies,KB Ram-air,Mac Hdrs,stock h-pipe,MAC cat-back,3:55gears,Pro-5.0 shifter,Ron Davis radiator
Posts: 35 | From: solano county | Registered: Aug 2005
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JohnB
Tech Moderator
Member # 969
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posted
Any synthetic will have the friction modifier in it. As for Royal Purple, that's all I run in my cars. 2 quarts will do the trick!
When you pull the cover, take a GOOD look at what's inside. If you see ANYTHING broken, or chips on the magnetic fill plug (upper driver's side), you know you've got trouble brewing.
Additionally, check your transmission fluid!!
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1965 Shelby Cobra
1993 Cobra
2012 F150 Raptor
2020 GT500
Posts: 6523 | From: Orlando FL/Redding CA | Registered: Mar 2002
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92-5.0
¯
Member # 5961
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posted
Thanks John.
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GT40int,Mac70TB,C&L73Maf,24inj,AFPR,U/DPullies,KB Ram-air,Mac Hdrs,stock h-pipe,MAC cat-back,3:55gears,Pro-5.0 shifter,Ron Davis radiator
Posts: 35 | From: solano county | Registered: Aug 2005
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