Transmissions and Drivetrain Need help with your trans? Problems with your axle?

Whining/roaring from rear noise only under load

Thread Tools
 
Search this Thread
 
Old Dec 18, 2007 | 03:28 PM
  #1  
nikkev's Avatar
Thread Starter
Junior Member
 
Joined: Nov 2003
Posts: 44
Likes: 0
From: Charleston,SC
Car: 1985 IROC
Engine: none
Transmission: A4
Whining/roaring from rear noise only under load

1991 L98 Z28 with auto tranny and stock 3.23 posi rear. When I am accelerating, or the engine is turning the rear wheels at all, there is a loud roaring/whining noise coming from the rear of the car. If I take my foot off the gas, the noise goes away. The noise also gets less about about 30-40mph. Is this a rear related issue or a tranny issue? Thanks
Reply
Old Dec 18, 2007 | 03:40 PM
  #2  
sofakingdom's Avatar
Supreme Member
20 Year Member
Community Builder
iTrader: (1)
 
Joined: Sep 2005
Posts: 28,047
Likes: 2,504
Car: Yes
Engine: Usually
Transmission: Sometimes
Axle/Gears: Behind me somewhere
Re: Whining/roaring from rear noise only under load

The transmission is not in the rear of the car. So it's probably not the source.

Sounds like it needs pinion bearings. Basically, that's a whole rear end rebuild.

What does the fluid look like? Is there any play between any of the rear end parts, with the drive shaft out?
Reply
Old Dec 18, 2007 | 04:42 PM
  #3  
nikkev's Avatar
Thread Starter
Junior Member
 
Joined: Nov 2003
Posts: 44
Likes: 0
From: Charleston,SC
Car: 1985 IROC
Engine: none
Transmission: A4
Re: Whining/roaring from rear noise only under load

No play, but the rear does have 190,000 miles on it. The fluid was just changed about 2 months ago and it was dark brown-ish, but no metal or anything in it. Looks like I might just shop around for a rear....
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
theshackle
Tech / General Engine
4
Sep 17, 2020 08:26 AM
xxx3man`
Tech / General Engine
11
Sep 23, 2015 10:37 PM
SpaniardV6
Brakes
19
Sep 7, 2015 03:04 AM
B_Dubya
Transmissions and Drivetrain
3
Aug 26, 2015 05:09 PM
BlackBoulder
Suspension and Chassis
2
Aug 11, 2015 11:15 PM




All times are GMT -5. The time now is 12:18 AM.