Gear 4.10 whine , oil solution? - Ford Mustang Forum
 
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post #1 of 10 (permalink) Old 03-26-2011 Thread Starter
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Gear 4.10 whine , oil solution?

I have a 4.10 in my mustang v6 differential and it whine a lil bit and I read that the Heavy ShockProof will reduce the whine.. anyone can recommend it? or other solution thanks!


Mustang 06 v6 4.0 mods: exhaust true duals magnaflow, CAI K&N 3″,Richmond Gear 4.10 + Ford racing T-lok , Diablosport 91 oct tune, Steeda short shifter ,Tire toyo proxes4 245/50/16, Rear seat delete kit , many more...
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post #2 of 10 (permalink) Old 03-26-2011
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its pretty common to have a little whine, although i didnt have any with my 3.73`s. i used the royal purple with the additive in it for the tlok, for the break in and the first oil change. 70w140. one person said that oil helped his whine, but i dont know. lets see what others are using.......


05 V6 auto,
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post #3 of 10 (permalink) Old 03-26-2011
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On the rear end if the ring and pinion weren't set up with correct shims and overlap by someone who knows how to do it, it'll always whine.
Thats if you changed rear end gears. If not the ford rearends that size had a lot of problems with whine and to stop it you have to change out the gears.
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post #4 of 10 (permalink) Old 03-26-2011 Thread Starter
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Quote:
Originally Posted by KenboP21 View Post
On the rear end if the ring and pinion weren't set up with correct shims and overlap by someone who knows how to do it, it'll always whine.
Thats if you changed rear end gears. If not the ford rearends that size had a lot of problems with whine and to stop it you have to change out the gears.
its not whinening alot but some people said that the Heavy ShockProof oil will help to reduce the whine

Mustang 06 v6 4.0 mods: exhaust true duals magnaflow, CAI K&N 3″,Richmond Gear 4.10 + Ford racing T-lok , Diablosport 91 oct tune, Steeda short shifter ,Tire toyo proxes4 245/50/16, Rear seat delete kit , many more...
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post #5 of 10 (permalink) Old 03-26-2011
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Yeah, a lot of the time it will. Ford sells ( I think) a little bottle of additive that usually does the trick.
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post #6 of 10 (permalink) Old 03-26-2011
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Can't hurt to try it

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post #7 of 10 (permalink) Old 03-27-2011
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try to put the friction modifier in last
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post #8 of 10 (permalink) Old 04-11-2011
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Is there anything available that you can use to suck/pump/evacuate the diff oil without pulling the cover off??? I put an 8.8 in last month with 4.10's -it came filled with fluid. But it has developed a whine more a whirr its higher pitched than a whine - I was thinking of changing it for royal purple to see if it would quiet down but i'd rather not take the cover off

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post #9 of 10 (permalink) Old 04-12-2011
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I have had good luck with quieting minor gear whine with Royal Purple and the Ford Friction Modifier.
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there are three things you can do

1. add friction modifier

2. remove the diff cover and change the diff fluid (safest option)

3. live with a gear whine.

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