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

Bad rear end shudder, need help

Thread Tools
 
Search this Thread
 
Old 06-15-2007, 02:34 AM
  #1  
Launching!
Thread Starter
iTrader: (10)
 
SoCalZ28's Avatar
 
Join Date: Jul 2005
Location: Cali 805
Posts: 275
Likes: 0
Received 0 Likes on 0 Posts
Default Bad rear end shudder, need help

When I put my A4 into drive (not over drive) and speed up to 55-60 and then back off I can feel a noticable shudder in the rear end, this will happen at any higher speed too, if im cruising at 85 and downshift into drive (im not thinking straight right now, drive is 4th gear?) it shudders harder. Today I took her up to 140 on the way home from work and the shudder needs to be fixed, it was really strong & much louder and i can feel it more up by the tranny, it seems to disapear 135-160 when i dont have my foot into it. The other thing that is bugging me and im not sure if its related, when i spin the tires in reverse I get REAL bad wheel hop... how do i fix that?
I have a lowered car, LCA, LCA relo-brackets, adj panhard and aftermarket torque arm. I had someone measure it for me and they said it was -1.... but it doesnt make sense. what do i need to do?
Old 06-15-2007, 01:20 PM
  #2  
Launching!
Thread Starter
iTrader: (10)
 
SoCalZ28's Avatar
 
Join Date: Jul 2005
Location: Cali 805
Posts: 275
Likes: 0
Received 0 Likes on 0 Posts
Default

common guys, someones elses *** has to shake at higher speeds!
Old 06-15-2007, 01:46 PM
  #3  
11 Second Club
iTrader: (47)
 
Stangkilr's Avatar
 
Join Date: Feb 2003
Location: Kansas City, Mo
Posts: 3,938
Likes: 0
Received 0 Likes on 0 Posts

Default

Maybe a band is about to break in your transmission.
Old 06-17-2007, 03:28 PM
  #4  
Launching!
Thread Starter
iTrader: (10)
 
SoCalZ28's Avatar
 
Join Date: Jul 2005
Location: Cali 805
Posts: 275
Likes: 0
Received 0 Likes on 0 Posts
Default

i dont have any trouble with the trans? I was thinking a weak u-joint but i checked them and they look good and arent loose. maybe the pinion angle was off but it was measured at -1, maybe the drive shaft is off balance, or could the rear axle not being centered properly cause this?
Old 06-18-2007, 05:02 PM
  #5  
Launching!
Thread Starter
iTrader: (10)
 
SoCalZ28's Avatar
 
Join Date: Jul 2005
Location: Cali 805
Posts: 275
Likes: 0
Received 0 Likes on 0 Posts
Default

ttt for some help...
Old 06-18-2007, 10:41 PM
  #6  
11 Second Club
iTrader: (47)
 
Stangkilr's Avatar
 
Join Date: Feb 2003
Location: Kansas City, Mo
Posts: 3,938
Likes: 0
Received 0 Likes on 0 Posts

Default

Originally Posted by SoCalZ28
i dont have any trouble with the trans? I was thinking a weak u-joint but i checked them and they look good and arent loose. maybe the pinion angle was off but it was measured at -1, maybe the drive shaft is off balance, or could the rear axle not being centered properly cause this?
Uh...if it does not do it in OD then its your transmission. Thats what mine was doing when it had the 4l60e in it and about 3 weeks later a band broke.
Old 06-19-2007, 10:41 AM
  #7  
Launching!
Thread Starter
iTrader: (10)
 
SoCalZ28's Avatar
 
Join Date: Jul 2005
Location: Cali 805
Posts: 275
Likes: 0
Received 0 Likes on 0 Posts
Default

Im going to check my tranny mount, I replaced it with a energy about 45K ago, maybe its craked or something... I only feel the shudder in the tranny when im doing 130 or faster? feels like it moves up the drive shaft




All times are GMT -5. The time now is 05:12 AM.