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Quieting gear whine--solution found.

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Old 11-20-2006, 03:54 PM   #21
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Default RE: Quieting gear whine--solution found.

Thanks!!
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Old 12-14-2006, 12:04 PM   #22
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Default RE: Quieting gear whine--solution found.

CrazyAl - any long-term updates?
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Old 12-14-2006, 12:42 PM   #23
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Default RE: Quieting gear whine--solution found.

Well, so far so good. There's about 1000 miles on the new oil. I've been giving my "lead foot mod" a good workout, and so far so good. In fact, it actually seems like it's getting BETTER over time. Now I suppose that could be psycological, but whatever the case I am very happy with it.
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Old 12-14-2006, 04:33 PM   #24
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Default RE: Quieting gear whine--solution found.

Well, I tried it and it didn't work for me.
I'm thinking perhaps it may be the U-joint where the 2 pieces of the drive shaft are put together. Either that or its at the rear of the tranny where the driveshaft exits. Or , it just plain didn't work.

No way to tell really, b/c it won't make the noise if it's up on jack stands, b/c the driveline won't be under load.

Anybody know if there's a grease fitting or something at that U-joint, I haven't looked.

Thanks
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Old 05-28-2007, 06:03 PM   #25
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Default RE: Quieting gear whine--solution found.

Hey Crazyal
I'm surprised you hear the rear at all with that exhaust setup lol
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Old 05-28-2007, 06:11 PM   #26
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Default RE: Quieting gear whine--solution found.

I've always kind of liked the whine, am I crazy?
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Old 05-28-2007, 06:24 PM   #27
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Default RE: Quieting gear whine--solution found.

yep your crazy
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Old 06-04-2007, 09:26 PM   #28
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Default RE: Quieting gear whine--solution found.

Ok this thread got my interest so i decided to call the redline tech department about this shockproof oil. 1st off he did say that heavy shockproof oilwill quiet the gears some but did not recommend itfor street use do to poor flow in cold conditions.He recommends using the viscosity that the car calls for. In this case redline 75w-140, and since itisn't shock proof it probably won't help with noise. He also doesn't recommend using it on warranty vehicles do to the odd color. Coming form a tech's point of view, Iwould question a noisy rear coming to the shop with red oil in it. So i guess use itat your own risk ,and let us know howitworks come winter time.
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Old 06-18-2011, 08:53 AM   #29
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Hate to bump a four year old thread, but was curious how the Redline Heavy Shockproof performed after all of these years in your 8.8 rear end.

I put it in mine yesterday to help with the gear whine, and it did quiet the whine down significantly. Also, did it affect your mpg at all?
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Old 06-02-2012, 02:03 PM   #30
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Originally Posted by Unleashedbeast View Post
Hate to bump a four year old thread, but was curious how the Redline Heavy Shockproof performed after all of these years in your 8.8 rear end.

I put it in mine yesterday to help with the gear whine, and it did quiet the whine down significantly. Also, did it affect your mpg at all?

Well, at least I'm only bumping a year old thread... ;-)


Anyone else had success with this? Does it damage the diff over the long haul?

Thanks,

Micke
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Old 06-03-2012, 10:20 AM   #31
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Been using Red Line Heavy Shockproof in my 8.8" with quieting success, for almost a year. The noise isn't gone, but it's tolerable now. Noticed little to no change in mpg.
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Old 06-04-2012, 09:37 AM   #32
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Been using Red Line Heavy Shockproof in my 8.8" with quieting success, for almost a year. The noise isn't gone, but it's tolerable now. Noticed little to no change in mpg.
Thanks for the info! Good to know.
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Old 06-01-2013, 10:24 AM   #33
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Back from the dead, again. Have gears gotten harder to install quietly, crappy machining???

Gonna give it a try to see if it works. I have an bad whine between 50-65mph. Motives Performance 4.30 gear set....

They spent a full day an a half and stopped at 50 miles of test driving. I know they tried their best, replaced all bearings, etc. They do have the fastest street coyote in the country so the guy was upset about how it turned out dispite trying so hard. He took pics of the contact pattern, etc. From what I've seen online, looked about the same to me but I'm no expert. Next time, I'll let them pick and source the gears that way, in the end they will have to resolved it.

You guys have been on the hwy for hours right? Hot outside, cold outside, etc? Driving in all these conditions, has the noise changed? How so?

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Old 06-01-2013, 11:27 AM   #34
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The guy who installed the gears in my Shelby also took a picture of the contact pattern of my gears. "Motive"

He was unable to make my rear end quiet with Ford Racing or Motive gears. After the third attempt, we gave up and I dealt with it. Red Line Heavy Shock Proof helped quiet the gears, but it was still there. Better than nothing.
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Old 06-01-2013, 12:15 PM   #35
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The guy who installed the gears in my Shelby also took a picture of the contact pattern of my gears. "Motive"

He was unable to make my rear end quiet with Ford Racing or Motive gears. After the third attempt, we gave up and I dealt with it. Red Line Heavy Shock Proof helped quiet the gears, but it was still there. Better than nothing.
Just for an idea how much it helped, if you had to give a % of noise reduction, how much did it help? Thanks!
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Old 06-01-2013, 01:14 PM   #36
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Just for an idea how much it helped, if you had to give a % of noise reduction, how much did it help? Thanks!
50% give or take. It made the noise tolerable so that it wasn't echoing inside your skull on acceleration.
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Old 06-01-2013, 01:29 PM   #37
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50% give or take. It made the noise tolerable so that it wasn't echoing inside your skull on acceleration.
Sounds considerable! Thanks
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Old 06-01-2013, 04:45 PM   #38
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It quieted down my gears, but I don't get any whine on accel. Only whine I get is at steady cruise at 70mph and on decel.
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Old 06-01-2013, 04:53 PM   #39
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It quieted down my gears, but I don't get any whine on accel. Only whine I get is at steady cruise at 70mph and on decel.
Cruise and coasting/engine braking here, from 50 to 65.
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Old 06-01-2013, 06:48 PM   #40
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Cruise and coasting/engine braking here, from 50 to 65.
yeah, anything over 50ish I get a little whine on light acceleration and cruise, plus engine braking/decel in gear. Mine isn't that bad, which is probably why I didn't notice much difference.
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Old 06-01-2013, 06:48 PM
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140w, 40mph, 75w, bar, decel, differential, fluid, gear, lowering, mustang, panhard, quieting, reduce, shockproof, whine

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