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

drive shaft rubbing loop

Thread Tools
 
Search this Thread
 
Old 10-26-2012, 06:28 PM
  #1  
Supreme Member

Thread Starter
 
TPI-Formula350-'s Avatar
 
Join Date: Aug 2003
Location: Long Island New York
Posts: 1,644
Likes: 0
Received 3 Likes on 3 Posts
Car: 89 Formula 350
Engine: Forged 385 H/C/I
Transmission: 700R4-4300 Stall-lockup
Axle/Gears: BW 9 Bolt 3:70
drive shaft rubbing loop

I just installed a UMI adjustable torque arm with X member/DS loop. Under normal cruise its all quite. From the dig or very slow roll into WOT I get a vibration and rubbing noise under the center console area. I looked under the car and it appears the front yoke is rubbing inside the front bottom/drivers side of the drive shaft loop. I'm guessing it shifts under heavy load because its about 1/4-3/8" away under no load. The wear mark is about 1/8" and i can see it on both the loop and drive shaft yoke. It's a 3" LS1 DS, sure it wouldn't hit if it was stock size DS.
So my plan is to just grind/trim like an 1/8" off the DS yoke with a dremel. I know the DS is balanced but I'm just going to give it a little shave.. Anyone have a better idea?
Old 10-26-2012, 08:33 PM
  #2  
Moderator

 
AlkyIROC's Avatar
 
Join Date: Jul 1999
Location: 51°N 114°W, 3500'
Posts: 17,110
Likes: 0
Received 120 Likes on 101 Posts
Car: 87 IROC L98
Engine: 588 Alcohol BBC
Transmission: Powerglide
Axle/Gears: Ford 9"/31 spline spool/4.86
Re: drive shaft rubbing loop

If your LCA are adjustable, shorten them a little bit. This will move your driveshaft forward slightly and may be enough for the yoke to clear the loop.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
1992rs/ss
Engine/Drivetrain/Suspension Parts for Sale
16
01-28-2016 09:58 PM
Reddeath210
Firebirds for Sale
14
10-06-2015 08:20 AM
jharrison5
Engine Swap
5
08-19-2015 05:53 PM
Ozz1967
Transmissions and Drivetrain
4
08-16-2015 10:23 PM
transam84
Exterior Parts for Sale
0
08-14-2015 08:54 PM



Quick Reply: drive shaft rubbing loop



All times are GMT -5. The time now is 12:36 PM.