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

MWC install. Is this chattering normal?

Thread Tools
 
Search this Thread
 
Old Nov 15, 2022 | 04:33 PM
  #1  
Need4Camaro's Avatar
Thread Starter
TECH Fanatic
15 Year Member
Photogenic
Liked
Loved
iTrader: (1)
 
Joined: Feb 2009
Posts: 1,646
Likes: 37
Default MWC install. Is this chattering normal?


the installer used my stock drive shaft with a different U-Joint. I am thinking I probably need to upgrade… I’m not sure if this sound is normal for an aftermarket rear…
Reply
Old Nov 15, 2022 | 08:39 PM
  #2  
99 Black Bird T/A's Avatar
TECH Senior Member
20 Year Member
Liked
Loved
Community Favorite
iTrader: (4)
 
Joined: Nov 2001
Posts: 8,638
Likes: 1,501
Default

My friend's MWC doesn't make that noise.

What type of limited slip/posi is in the carrier? Is chattering worse when turning?

If it's a clutch type maybe it just needs the limited slip additive.
Reply
Old Nov 15, 2022 | 10:19 PM
  #3  
Need4Camaro's Avatar
Thread Starter
TECH Fanatic
15 Year Member
Photogenic
Liked
Loved
iTrader: (1)
 
Joined: Feb 2009
Posts: 1,646
Likes: 37
Default

Originally Posted by 99 Black Bird T/A
My friend's MWC doesn't make that noise.

What type of limited slip/posi is in the carrier? Is chattering worse when turning?

If it's a clutch type maybe it just needs the limited slip additive.
I went with the S-Trac. It doesn't make the sound when turning. Its most noticable at highway speeds. Doesn't really do it at lower speeds.

Originally Posted by nikon1999
Your pinion angle might need to be adjusted if that wasn’t addressed.
The installer adjusted it and the vibration is mostly gone ... just this odd sound remains.

Last edited by Need4Camaro; Nov 15, 2022 at 11:05 PM.
Reply
Old Nov 16, 2022 | 09:21 AM
  #4  
ramairetransam's Avatar
TECH Junkie
20 Year Member
Photogenic
Photoriffic
iTrader: (18)
 
Joined: Aug 2005
Posts: 3,462
Likes: 75
From: Amsterdam Ny, the good part
Default

my fab 9 from them doesnt make that noise either. my mwc fab 9 came with a driveshaft , what tq arm to do have ?Almost sounds like something hitting , your exhaust , is everything tight . I want to try and help you figure this out . you need to get it on a lift or up in the air
Reply
Old Nov 16, 2022 | 10:09 AM
  #5  
Need4Camaro's Avatar
Thread Starter
TECH Fanatic
15 Year Member
Photogenic
Liked
Loved
iTrader: (1)
 
Joined: Feb 2009
Posts: 1,646
Likes: 37
Default

Originally Posted by ramairetransam
my fab 9 from them doesnt make that noise either. my mwc fab 9 came with a driveshaft , what tq arm to do have ?Almost sounds like something hitting , your exhaust , is everything tight . I want to try and help you figure this out . you need to get it on a lift or up in the air
I used their torque arm:

Torque Arm & Crossmember Options: Short Arm True Dual Crossmember (Two Piece Arm Needed Double Wall Higher HP)

I have Speed Engineering True Duals over the axel so it may be exhaust? The installer told me it fit like stock but they rattled a bit stock too, but I never got this sound until I installed my MWC.

Reply
Old Nov 16, 2022 | 08:01 PM
  #6  
Spankstangs1999's Avatar
Staging Lane
iTrader: (1)
 
Joined: Mar 2021
Posts: 93
Likes: 7
Default

Sounds like exhaust hitting. Do you have a drive shaft loop?
Reply
Old Nov 17, 2022 | 07:18 AM
  #7  
ramairetransam's Avatar
TECH Junkie
20 Year Member
Photogenic
Photoriffic
iTrader: (18)
 
Joined: Aug 2005
Posts: 3,462
Likes: 75
From: Amsterdam Ny, the good part
Default

i have the se true duals and mine only hits on larger bumps where it goes over the axle housing . also i will add my exhaust it a red c hair away from the driveshaft but its never touched it , well a red c hair when its on my lift and the axles hangs down . those duals are very large and very close , it almost sounds like a chattering of the exhaust on something .
Reply
Old Nov 17, 2022 | 07:47 AM
  #8  
Need4Camaro's Avatar
Thread Starter
TECH Fanatic
15 Year Member
Photogenic
Liked
Loved
iTrader: (1)
 
Joined: Feb 2009
Posts: 1,646
Likes: 37
Default

Yeah, I have a drive shaft loop. What is a good way to check the exhaust hitting stuff? my exhaust rattles alot during idle.
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

6 Gifts Neither Your Dad Nor Grad Will Shove Into the 'Trinket Drawer'

 Brett Foote
story-1

Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

 Pouria Savadkouei
story-2

Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

 Verdad Gallardo
story-3

7 Most Reliable High-Performance Engines GM Has Ever Built

 Verdad Gallardo
story-4

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

 Verdad Gallardo
story-5

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

 Pouria Savadkouei
story-6

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

 Verdad Gallardo
story-7

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-8

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-9

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
Old Nov 18, 2022 | 12:49 PM
  #9  
ramairetransam's Avatar
TECH Junkie
20 Year Member
Photogenic
Photoriffic
iTrader: (18)
 
Joined: Aug 2005
Posts: 3,462
Likes: 75
From: Amsterdam Ny, the good part
Default

Originally Posted by Need4Camaro
Yeah, I have a drive shaft loop. What is a good way to check the exhaust hitting stuff? my exhaust rattles alot during idle.
shake on the tips and listen , if you know its hitting you have to fix that first , did you have this sounds before the duals ?

Get it up in the air and check it out .
Reply
Old Nov 18, 2022 | 01:10 PM
  #10  
Spankstangs1999's Avatar
Staging Lane
iTrader: (1)
 
Joined: Mar 2021
Posts: 93
Likes: 7
Default

Originally Posted by Need4Camaro
Yeah, I have a drive shaft loop. What is a good way to check the exhaust hitting stuff? my exhaust rattles alot during idle.
Your torque arm could be touching your driveshaft loop. I had that issue.
Reply
Old Nov 20, 2022 | 11:03 AM
  #11  
91 Z28's Avatar
TECH Fanatic
5 Year Member
Photogenic
Photoriffic
Liked
iTrader: (3)
 
Joined: Oct 2016
Posts: 1,588
Likes: 374
From: Armstrong BC
Default

Mine doesn't make a sound while driving. The only noise that comes from my rear is clicking from my Yukon grizzly locker when taking a corner
Reply
Old Nov 26, 2022 | 06:31 PM
  #12  
Need4Camaro's Avatar
Thread Starter
TECH Fanatic
15 Year Member
Photogenic
Liked
Loved
iTrader: (1)
 
Joined: Feb 2009
Posts: 1,646
Likes: 37
Default

Originally Posted by Spankstangs1999
Your torque arm could be touching your driveshaft loop. I had that issue.
How did you fix?
Reply
Old Nov 26, 2022 | 08:31 PM
  #13  
Spankstangs1999's Avatar
Staging Lane
iTrader: (1)
 
Joined: Mar 2021
Posts: 93
Likes: 7
Default

Originally Posted by Need4Camaro
How did you fix?
Mwc wanted me to send in. But life got crazy. I ended up just putting some radiator hose where it was touching.
Reply
Old Nov 28, 2022 | 11:32 AM
  #14  
Y2K_Frenzy's Avatar
TECH Fanatic
Photogenic
Liked
Loved
Community Favorite
 
Joined: Jan 2022
Posts: 1,369
Likes: 256
Default

Originally Posted by Spankstangs1999
Mwc wanted me to send in. But life got crazy. I ended up just putting some radiator hose where it was touching.
For the non DIY guy it’d probably be cheaper to ship them the whole car. 😂.
Reply
Old Dec 28, 2022 | 07:46 AM
  #15  
Need4Camaro's Avatar
Thread Starter
TECH Fanatic
15 Year Member
Photogenic
Liked
Loved
iTrader: (1)
 
Joined: Feb 2009
Posts: 1,646
Likes: 37
Default

I'll probably see about going to MWC in Spring.
Reply




All times are GMT -5. The time now is 04:03 AM.

story-0
6 Gifts Neither Your Dad Nor Grad Will Shove Into the 'Trinket Drawer'

Don't get dad new socks or a grill brush this year.

By Brett Foote | 2026-06-09 14:55:56


VIEW MORE
story-1
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

Slideshow: We take a close look at the ONE and Artidiag 800BT2 diagnostic tools from Topdon and the reasons to buy one over the other.

By Pouria Savadkouei | 2026-05-28 11:05:11


VIEW MORE
story-2
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

Slideshow: The controversial Ferrari F6 swaps its original flat-12 for a Corvette Z06-derived LT4 V8 and sends power to four rear wheels through a custom-built drivetrain.

By Verdad Gallardo | 2026-05-26 18:23:54


VIEW MORE
story-3
7 Most Reliable High-Performance Engines GM Has Ever Built

Slideshow:These GM engines didn't just make huge power, they survived abuse, boost, track days, and six-digit mileage with a reputation for refusing to quit.

By Verdad Gallardo | 2026-05-21 16:45:27


VIEW MORE
story-4
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-5
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-6
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-7
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-8
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-9
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