Gears & Axles Driveshafts | Rearends | Differentials | Gears | 12 Bolt | 9 Inch | Dana

It's whining.....

Thread Tools
 
Search this Thread
 
Old Jan 23, 2007 | 11:37 PM
  #1  
Magnet's Avatar
Thread Starter
11 Second Club
20 Year Member
iTrader: (36)
 
Joined: Sep 2004
Posts: 4,085
Likes: 77
From: Fort Myers Florida
Default It's whining.....

what could be making my stock rear whine? its pretty bad at all RPM's the car only has 20k miles on it, and maybe 10 passes with nittos and almost no mods done to the car...could my rear really be going out? or do you think im just due for a fluid change w/ gm posi additive??
Reply
Old Jan 24, 2007 | 12:15 AM
  #2  
xpndbl3's Avatar
TECH Fanatic
iTrader: (23)
 
Joined: Dec 2006
Posts: 1,568
Likes: 2
From: orland park, IL
Default

you can try the fluid change, but i'm guessing the contact patch is messed up....it's 9" time
Reply
Old Jan 24, 2007 | 12:17 AM
  #3  
MeentSS02's Avatar
Kleeborp the Moderator™
20 Year Member
iTrader: (11)
 
Joined: Mar 2004
Posts: 10,316
Likes: 6
From: Dayton, OH
Default

If it is whining, something got out of alignment somewhere. It'll only get worse from there. Mine is slowly starting to whine more and more with each passing day.
Reply
Old Jan 24, 2007 | 12:32 AM
  #4  
fuseone's Avatar
TECH Fanatic
 
Joined: Jan 2006
Posts: 1,050
Likes: 0
From: reading,pa
Default

does it do it in netrual
Reply
Old Jan 24, 2007 | 12:38 AM
  #5  
Magnet's Avatar
Thread Starter
11 Second Club
20 Year Member
iTrader: (36)
 
Joined: Sep 2004
Posts: 4,085
Likes: 77
From: Fort Myers Florida
Default

no it doesnt do it in neutral.......but what do you guys mean something got out of alignment? couldn't it only get out of alignment if something broke??
i was banking on this rear lasting for awhile, they arent suppose to go out on a stockish auto car...atleast not at 20k miles could it be a bearing?? my best 60' is onyl 1.96 and mostly run 2.00's ....those shouldn't ahve broke my rear
Reply
Old Jan 24, 2007 | 12:40 AM
  #6  
Magnet's Avatar
Thread Starter
11 Second Club
20 Year Member
iTrader: (36)
 
Joined: Sep 2004
Posts: 4,085
Likes: 77
From: Fort Myers Florida
Default

FWIW i would be going 12 bolt not 9''
Reply
Old Jan 24, 2007 | 12:41 AM
  #7  
xpndbl3's Avatar
TECH Fanatic
iTrader: (23)
 
Joined: Dec 2006
Posts: 1,568
Likes: 2
From: orland park, IL
Default

9" is better
Reply
Old Jan 24, 2007 | 12:44 AM
  #8  
Magnet's Avatar
Thread Starter
11 Second Club
20 Year Member
iTrader: (36)
 
Joined: Sep 2004
Posts: 4,085
Likes: 77
From: Fort Myers Florida
Default

not for an auto car...its just eating extra HP b/c im not gonna be running 9-10's for ALONG time
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

 Verdad Gallardo
story-1

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-2

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-3

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-4

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-5

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-6

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

 Verdad Gallardo
story-7

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

 Verdad Gallardo
story-8

10 Camaros You Should Never Buy

 
story-9

10 LS Engine Myths That Refuse to Die

 Verdad Gallardo
Old Jan 24, 2007 | 01:06 AM
  #9  
xpndbl3's Avatar
TECH Fanatic
iTrader: (23)
 
Joined: Dec 2006
Posts: 1,568
Likes: 2
From: orland park, IL
Default

eh i've seen cars go back to back with the new strange 60 and a moser 9" and run within .05 of each other. The only reason I prefer the 9" is the cheap gear change prices if the car ever speeds up or slows down in mph at the track. Also I can grab one pumpkin for the strip and another if I take the car on a long highway cruise, I also run a TH350 so no overdrive here either.
Reply
Old Jan 24, 2007 | 01:24 AM
  #10  
Magnet's Avatar
Thread Starter
11 Second Club
20 Year Member
iTrader: (36)
 
Joined: Sep 2004
Posts: 4,085
Likes: 77
From: Fort Myers Florida
Default

yes but by what i've seen the dana and 9in both rob more power than the 12 bolt and aren't necessary for a bolt-on A4 and possibly cam only...
Reply
Old Jan 24, 2007 | 11:29 AM
  #11  
switch hit's Avatar
Teching In
 
Joined: Jul 2006
Posts: 29
Likes: 0
From: 4500ft Alt
Default

its your pinion depth or back lash on the gears. my rear end whines like a bitch I checked the back lash and it was at .008" witch is good, but I noticed the pattern was off so that ment it was the pinion and setting the pinion suck so im going to try and blow it up. its a 12bolt
Reply
Old Jan 24, 2007 | 02:16 PM
  #12  
MeentSS02's Avatar
Kleeborp the Moderator™
20 Year Member
iTrader: (11)
 
Joined: Mar 2004
Posts: 10,316
Likes: 6
From: Dayton, OH
Default

Originally Posted by Magnet
no it doesnt do it in neutral.......but what do you guys mean something got out of alignment? couldn't it only get out of alignment if something broke??
i was banking on this rear lasting for awhile, they arent suppose to go out on a stockish auto car...atleast not at 20k miles could it be a bearing?? my best 60' is onyl 1.96 and mostly run 2.00's ....those shouldn't ahve broke my rear
Things can move around in there...the crush-type pinion spacer would be my first guess. Nothing has to be broken...just bent enough to throw it off. Doesn't take much...
Reply
Old Jan 24, 2007 | 02:23 PM
  #13  
99zman's Avatar
TECH Fanatic
iTrader: (23)
 
Joined: Mar 2005
Posts: 1,422
Likes: 1
Default

when you have it fixed you can have who does your work use a solid pinion spacer to help prevent the pattern being thrown off.
Reply
Old Jan 24, 2007 | 03:15 PM
  #14  
Magnet's Avatar
Thread Starter
11 Second Club
20 Year Member
iTrader: (36)
 
Joined: Sep 2004
Posts: 4,085
Likes: 77
From: Fort Myers Florida
Default

i'm not sure if im gonna fix it or not...i might jsut deal with it until i can afford a 12bolt....how much do you think it will cost to have it fixed??
Reply
Old Jan 24, 2007 | 04:25 PM
  #15  
MeentSS02's Avatar
Kleeborp the Moderator™
20 Year Member
iTrader: (11)
 
Joined: Mar 2004
Posts: 10,316
Likes: 6
From: Dayton, OH
Default

Originally Posted by Magnet
i'm not sure if im gonna fix it or not...i might jsut deal with it until i can afford a 12bolt....how much do you think it will cost to have it fixed??
Depends on what needs to be replaced...the labor, regardless, will probably cost a fair amount.
Reply
Old Jan 24, 2007 | 09:58 PM
  #16  
Magnet's Avatar
Thread Starter
11 Second Club
20 Year Member
iTrader: (36)
 
Joined: Sep 2004
Posts: 4,085
Likes: 77
From: Fort Myers Florida
Default

like $500 plus?
Reply
Old Jan 24, 2007 | 10:21 PM
  #17  
xpndbl3's Avatar
TECH Fanatic
iTrader: (23)
 
Joined: Dec 2006
Posts: 1,568
Likes: 2
From: orland park, IL
Default

depends on book rate in florida. Around here it's $90-120+ an hour....so just pulling the cover and taking a look is expensive. Setup booktime for a 10 bolt is around 5 hours depending on whether they use all-data, chiltons, etc for their labor rates. So that should clue you in on how quickly 10 bolt prices jump and there's no guarantee that it won't pop back up again. I went through 5 ten bolts running in the low 12s on sticky tires in my camaro with a 305 on spray.
Reply
Old Jan 25, 2007 | 07:05 AM
  #18  
cws T/A's Avatar
TECH Fanatic
iTrader: (3)
 
Joined: Apr 2006
Posts: 1,284
Likes: 0
From: Texas
Default

launch it at the rev limiter .. thats the best way to fix stock rears .. put it out of its misery . Broke 2 so far ..1 in my 355 s10 , it got a 8.8 out of a explorer...1 in my 00 t/a , it got a 9''
Reply
Old Jan 25, 2007 | 07:22 AM
  #19  
koolaid_kid's Avatar
TECH Junkie
iTrader: (21)
 
Joined: Jul 2005
Posts: 3,023
Likes: 1
From: Indianapolis
Default

Originally Posted by Magnet
like $500 plus?
Easily, if the gear needs to be replaced (most likely solution). If you can find a private mechanic, the charges will be significantly less. That is what I do for jobs I can't handle.
It's a "pay me now, pay me later" scenario (as to when you decide to move to the 12 bolt vs. patching the 10 bolt). I chose to pay later, but that's just me.
Reply




All times are GMT -5. The time now is 05:09 AM.

story-0
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-1
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-2
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-3
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-4
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-5
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-6
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE
story-7
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-8
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-9
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE