Gear Whine... Just a little..
05-03-2007, 06:00 PM
#11
1st Gear Member
Join Date: Mar 2007
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Posts: 66
RE: Gear Whine... Just a little..
Lower gear ratios will often whine a bit compared to stock.
As mentioned, helical cut gears whine much less if set up correctly.
There was a GM gear lube additive that was rare even 10 years ago that was made from sperm whale oil, which is an embargoed product nowadays. Older dealerships still have some of this stuff on the shelves, and it was great.
My stock gears whine a bit, but it's no big deal.
You don't mention when they whine. If they whine as you coast down with your foot off the gas, and this gets worse with time, that can be the pinion bearing going south. If the gearset is new and you have this conditon, there is probably too much lash in the pinion.
As mentioned, helical cut gears whine much less if set up correctly.
There was a GM gear lube additive that was rare even 10 years ago that was made from sperm whale oil, which is an embargoed product nowadays. Older dealerships still have some of this stuff on the shelves, and it was great.
My stock gears whine a bit, but it's no big deal.
You don't mention when they whine. If they whine as you coast down with your foot off the gas, and this gets worse with time, that can be the pinion bearing going south. If the gearset is new and you have this conditon, there is probably too much lash in the pinion.
05-03-2007, 06:23 PM
#12
Thread Starter
Join Date: Dec 2006
Location:
Posts: 7
RE: Gear Whine... Just a little..
Im going shark fishing next month... What your saying i have to find a whale and milk it! [:'(] Ha... Well i think i might leave it alone... The bearings are new... might just be the lash then.... just as long as it doesnt blow up im cool.... Im going to try the friction modifier.... i dunno what brands are good or not.... As for the sperm... im not doubting it... i just feel wierd going into a speed shop and asking for it 
05-03-2007, 07:49 PM
#13
3rd Gear Member
Join Date: Mar 2006
Location: Tempe, Arizona
Posts: 790
RE: Gear Whine... Just a little..
ORIGINAL: Romano
Im going shark fishing next month... What your saying i have to find a whale and milk it! [:'(] Ha... Well i think i might leave it alone... The bearings are new... might just be the lash then.... just as long as it doesnt blow up im cool.... Im going to try the friction modifier.... i dunno what brands are good or not.... As for the sperm... im not doubting it... i just feel wierd going into a speed shop and asking for it
Im going shark fishing next month... What your saying i have to find a whale and milk it! [:'(] Ha... Well i think i might leave it alone... The bearings are new... might just be the lash then.... just as long as it doesnt blow up im cool.... Im going to try the friction modifier.... i dunno what brands are good or not.... As for the sperm... im not doubting it... i just feel wierd going into a speed shop and asking for it
05-03-2007, 10:02 PM
#14
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Join Date: Nov 2006
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Posts: 15,618
RE: Gear Whine... Just a little..
Friction modifer first amd then a re install if the gears still whine
ORIGINAL: modular81
When you say purple stuff are you meaning royal purple synthetic gear lube. If so i've heard that you need to put in motorcraft's friction modifier as well because rp doesn't have enough in it. I'm not speaking from my own experience this i just what i've read on different forums. Maybe some else can chime in on the subject.
When you say purple stuff are you meaning royal purple synthetic gear lube. If so i've heard that you need to put in motorcraft's friction modifier as well because rp doesn't have enough in it. I'm not speaking from my own experience this i just what i've read on different forums. Maybe some else can chime in on the subject.
05-03-2007, 10:03 PM
#15
2nd Gear Member
Join Date: May 2006
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Posts: 237
RE: Gear Whine... Just a little..
Royal purple states that friction modifier is already in their synthetic gear lube, but many people havefound outthat it must not beenough friction modifier in it and they needed to add more. I'm getting ford racing 4.10's installed on monday and sticking with themotorcraft 75w140 synthetic gear lube and friction modifier.
05-04-2007, 02:57 AM
#16
5th Gear Member
Join Date: Feb 2007
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Posts: 2,997
RE: Gear Whine... Just a little..
Having a little gear whine is like being a little pregnant.........you either are or you aint. Have the installer get in your car and check it out, 'cause it won't get better, it'll only worsen if there's an issue with the install.
06-14-2007, 12:05 AM
#17
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Join Date: Jan 2006
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Posts: 1,093
RE: Gear Whine... Just a little..
ORIGINAL: Weed Racer
You don't mention when they whine. If they whine as you coast down with your foot off the gas, and this gets worse with time, that can be the pinion bearing going south. If the gearset is new and you have this conditon, there is probably too much lash in the pinion.
You don't mention when they whine. If they whine as you coast down with your foot off the gas, and this gets worse with time, that can be the pinion bearing going south. If the gearset is new and you have this conditon, there is probably too much lash in the pinion.
Brand new install with maybe60 miles on them BTW...
06-14-2007, 12:33 AM
#18
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Join Date: Dec 2004
Location: Small walk way by big walk way
Posts: 4,717
RE: Gear Whine... Just a little..
My stocks gears whined and my 4:10 gears don't make anymore noise then those. I wouldn't worry about it. Or just go crazy worrying about it. I guarantee you if they redo the job it wouldn't be no different.
07-01-2007, 01:58 PM
#20
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Join Date: Jul 2006
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Posts: 450
RE: Gear Whine... Just a little..
I would stick to the ford motorcraft rear end fluid with a little exrta friction modifier. My buddy's whined a bit and he had Royal Purple in it and his gears had a hum to them and a slight whine and we swapped it out for the Ford stuff and his gear is quiter than the stock gear. I personally think that Royal Purple is over rated and isn't a good form of lubrication for these S197's