Gear Whine
Thread Starter
TECH Enthusiast
Joined: Apr 2002
Posts: 586
Likes: 0
From: SmartAss, Ca
Gear Whine My pinion seal was leaking pretty bad...and reading all the posts, it seems to be a common problem....anyways, i had it fixed and changed the oil...they used Mobil 1 gear oil with the additive already mixed in it....now i get the loudest whine ever....its very noticable, what happened? Were they supposed to use regular gear oil and a separate bottle additive, or was it alright that they used the Mobil 1 with the additive already in the bottle?
Or is it just whining cuz its not leaking the oil and its full now??? Anybody?
Or is it just whining cuz its not leaking the oil and its full now??? Anybody?
Did they pull the carrier out of the housing? They probably screwed up the preload on the pinion bearings. The only way to correctly change a pinion seal is to pull the carrier out and tighten the pinion nut while checking the bearing preload with the carrier removed, something very few shops will do.
Thread Starter
TECH Enthusiast
Joined: Apr 2002
Posts: 586
Likes: 0
From: SmartAss, Ca
I dont understand? the Carrier? U mean the whole gear assembly?? I dont think they did...i know they had to pull the universal off the rear end and stuff to get to the seal...Is the whine normal...BTW, i have 105k miles on my car
The carrier is the assembly that the ring gear bolts to. If it didn't whine before being worked on, why would the whine be normal now. Sounds like you got the half *** pinion seal change that most shops do to save on labor to do it right.
Zexel/Torsen carriers do not require the additive. Only clutch type carriers actually require it. It is sometimes recommended for Z/T rear ends when customers complain about mechanical noises that a Z/T can make. Regardless, gear lube with or without posi additive does not cause gear whine.
Staging Lane
Joined: Jun 2002
Posts: 94
Likes: 0
From: Nowhere
Preload. Instead of pulling the entire carrier assembly like they should to do it right, a lot of shops just drop the drive shaft, pull the pinion nut and yoke, then replace the seal. You can't set the proper pre-load this way. The crush sleave is there to set the preload....once it's been crushed,(the original time the gears were set up at the factory) you need to replace it if the pinion nut is removed.(thus taking any preload off of the bearings) With the ring gear still in the case, you can't can't correctly run the pinion nut down to an accurate inch pound measurement because you are working against the ring gear. Just my .02
Trending Topics
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo
Launching!
Joined: Aug 2003
Posts: 221
Likes: 0
From: Sheridan, AR
Originally Posted by BlkBeaSSt
Sorry man, my shop is in Arkansas or I'd be happy to fix it for you 
Originally Posted by 2xLS1
Did they pull the carrier out of the housing? They probably screwed up the preload on the pinion bearings. The only way to correctly change a pinion seal is to pull the carrier out and tighten the pinion nut while checking the bearing preload with the carrier removed, something very few shops will do.
Hate to jump in here but I got whiny gears too. I was always told by gearheads before me that once the gears are setup and are worn in that any present noise is permanent until you buy new gears. Is that true? Or can I have my gear noise fixed? Would be an opportune time to fix my leaky pinion seal too (which seems to be VERY COMMON). If anyone is a pro on this, shoot me an e-mail or a pvt. message, I'd love to know.
11 Second Club
Joined: Aug 2003
Posts: 1,541
Likes: 1
From: Boring Green, Kentucky
Originally Posted by BlkBeaSSt
You are correct....once the wear pattern is established, there isn't any going back. The only real "fix" is to set up a new set of gears.
Been there, done that.
Thread Starter
TECH Enthusiast
Joined: Apr 2002
Posts: 586
Likes: 0
From: SmartAss, Ca
Originally Posted by Gary Z
Tom's Differentials in Paramount will install gears correctly. Paramount is near Compton. Their phone number is (562) 634-8431.
-Gary
-Gary
I WORK IN DOWNEY, SO I KNOW WHERE PARAMOUNT IS.....MY FRIEND ALSO TOLD ME THAT THIS GUY, "TOM" KNOWS HIS REAR ENDS...I'LL GIVE HIM A CALL, THX
