drive line clunk-Not slip yoke - Ranger-Forums - The Ultimate Ford Ranger Resource


Drivetrain Tech General discussion of drivetrain for the Ford Ranger.

Reply
 
LinkBack Thread Tools Search this Thread
  #1  
Old 09-17-2012
Member
Thread Starter
 
Join Date: Sep 2011
Location: CT
Posts: 32
drive line clunk-Not slip yoke

Hey,
my truck (2004 fx4 l2 auto) makes ONE fairly loud metallic clunk intermittently. I can't totally recreate it on command but i can describe when it happens. Clunk typically happens when when i let off the gas right before an upshift from 1st to 2nd...so pulling onto a side street after waiting for a break in traffic for example. The clunk is definitely metallic sounding and I can sort of feel it as well as hear it. I have removed the drive shaft and greased the slip yoke, this is not a "thud" but a metallic clunk. I don't know much about U-joints but i have checked them for play and they seem fine to me, also there is no thud or clunk when going into gear, and they are quiet while driving. If i lie under the truck and lightly tap the driveshaft with a hammer it sounds almost exactly like what i experience. judging from the sound and feel of when it happens it sounds like it's closer to the tranny or transfer case than the diff but i dont know. Finally it doesn't seem to effect the driveability of the truck, maybe its even just driveline slack clunking together when i let off the throttle and it upshifts and the noise radiates through the steel shaft ( never had a steel drive shaft before, last ranger had aluminum). Any opinions are apreciated
-Jeff
Reply With Quote
  #2  
Old 09-18-2012
Blhde's Avatar
Member
 
Join Date: Oct 2005
Location: Northern IL
Posts: 2,804
Its the slip yoke making the noise but its the rear springs that wrap and unwrap forcing the slip yoke to make the noise.

You would be surprised how much the rearend walks up and down when power is applied on these trucks.

Last edited by Blhde; 09-18-2012 at 10:18 PM.
Reply With Quote
  #3  
Old 09-18-2012
Member
Thread Starter
 
Join Date: Sep 2011
Location: CT
Posts: 32
Hmmm ok so you're saying when I let off the gas and this happens its the slip yoke compressing till it sort of bottoms out and clunks? Makes sense I just didn't think it could be that since I had already greased it,didn't realize it moved that much
...if it is simply due to spring wrap and the slip yoke then it doesn't seem like much to worry about. Is there a solution? Possibly those jd trac bars?
Reply With Quote
  #4  
Old 09-19-2012
Blhde's Avatar
Member
 
Join Date: Oct 2005
Location: Northern IL
Posts: 2,804
Some say the track bars help, others say the cure is a Chevy spring swap.

I have no experience with either of them, my truck has had 3 drive shafts chasing this issue. After years of not worrying about this issues I have not heard it for a long time. I certainly have not greased the slip yoke since this shaft was installed over 130k ago.
Reply With Quote
  #5  
Old 09-19-2012
Member
 
Join Date: Aug 2010
Location: Round Rock
Posts: 484
Also check the carrier bearing (you probably do not have one) and the transmission mount. Blhde is probably right. I know you greased everything but it never hurts to do it again just for the excuse to get underneath and look around again.
Reply With Quote
  #6  
Old 09-19-2012
Member
Thread Starter
 
Join Date: Sep 2011
Location: CT
Posts: 32
thanks for the comments. I'll take a look under there again, probably going to give those jd traction bars a try, i've been looking for an excuse to get them anyway
Reply With Quote
  #7  
Old 09-19-2012
Toreador4x4's Avatar
Member
iTrader: (6)
 
Join Date: Apr 2007
Location: Livonia, MI
Posts: 3,958
ALot of rangers have a single metallic clunk noise from the output flange on the transfer case (Old TSB to replace the flange) you can remove the flange, clean the splines on the flange and the putout shaft, apply some green loctite 648 to the flange splines (NOT THE OUTPUT SHAFT SPLINES) and re-assemble. let it dry for 24 hours

putting loctite on the output shaft splines will allow the excess loctite to be pushed into the transfer case and well...you know
Reply With Quote
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Slip Yoke (Possible Sticky) acortez Drivetrain Tech 35 08-26-2014 09:33 PM
slip yoke iderr 04RangerDave Drivetrain Tech 2 12-07-2011 11:56 AM
Slip yoke TSB and related problems mkoenig Drivetrain Tech 16 03-06-2011 07:31 AM
Dana 35 slip yoke from HELL!! 1996Ranger4x4SuperCabSTX General Ford Ranger Discussion 5 09-03-2009 10:48 PM
2006 Ranger 4x4 Supercab with slip yoke clunk issue RangerJim Drivetrain Tech 2 08-25-2007 04:59 PM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -6. The time now is 10:30 PM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.