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Old Aug 12, 2003 | 10:33 AM
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montster
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From: ontario
hypoid? & mercon?

Hi quick question haynes says to use Hypoid gear lube in ford rear axles. I have a ford 9" from a 86 bronco (H6) and they also say mercon for my manual tranny 4 speed (A) which I think is a NP435?.
my buddies said to use a good gear oil 80w90 and change it once or twice a summer if Im mud boggin.I know I need the limited slip additive for the rear but can you tell me what I should use If I am going to change it every year I would rather buy a case of gear oil or do I need to use what Haynes recomends
any help would be greatly appreciated
thanks
 
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Old Aug 12, 2003 | 10:50 AM
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montster
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From: ontario
hypoid? & mercon?

the mecon is for the transfer case but can can I use gear oil?
 
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Old Aug 12, 2003 | 10:33 PM
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From: Cloud USA
hypoid? & mercon?

4 speeds use Gear oil, 5 speeds use Mercon.
 
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Old Aug 12, 2003 | 10:39 PM
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wildjon300ci
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From: Conyers
hypoid? & mercon?

Originally posted by montster
the mecon is for the transfer case but can can I use gear oil?
No...If you want a bit more protection...make a 1/2 mercon, 1/2 SAE 30 mixture in your transfer-case and it'll quiet down the Lo-range whine a little bit and will help keep it from leaking.

Edit, I can't spell
 

Last edited by wildjon300ci; Aug 12, 2003 at 10:41 PM.
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