bad vibration at 70 -90 mph - 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 11-06-2010
Member
Thread Starter
 
Join Date: Nov 2010
Location: spencer ohio
Posts: 1
bad vibration at 70 -90 mph

I have a bad vibratuion in my 03 ranger at 70 through 90 mph I had new tires put on and balenced twice also aligned. i pulled rear end cover off did bearings and seals even though it all seemed good and there was no unusual wear on gears. has new u joints and it was still there when i removed the frount drive shaft. it is in the rear of the vehical because i jacked it up and ran it up to speed i remove the tires and ran it up agin to see if it was in the tires and it is still there. the drive shaft was balenced and it seemed the vibration moved up in speed it was at about 60 mph the only thing i found was that the drive shaft is about .0625 out of true at the frount and ford spec is .030 pinion bearing and trans bearings are tight any ideas would help i dont know if it could be the tranny it shifts fine and there is no vibration when you rev it in park to rule out tork converter and a new drive shaft is about 600 bucks the truck only has 80,000 miles on it
Reply With Quote
  #2  
Old 11-11-2010
Member
 
Join Date: Jun 2004
Location: City, PA
Posts: 515
Tires are balanced at a specific speed; if you are typically driving 70+ you have two options.

1. have your tires balanced at a speed you don't drive at; maybe 60 MPH.
2. slow down.
Reply With Quote
  #3  
Old 11-11-2010
My91Ranger's Avatar
Member
iTrader: (1)
 
Join Date: Apr 2007
Location: Roseville, Michigan
Posts: 2,252
I would take your driveshaft to a shop and have them check the balance.
Reply With Quote
  #4  
Old 11-11-2010
V8 Level II's Avatar
RF Veteran
iTrader: (4)
 
Join Date: Nov 2004
Location: Michigan
Posts: 7,833
We all know what tire imbalance feels like. Driveshaft-related problems have a very different feel because, at any given road speed, driveshaft RPM in a Ranger is roughly 4 times as high as wheel RPM due to the axle reduction ratio. It is not difficult to feel the difference between imbalance problems at the tire/wheel compared to something being driven by the much higher DS frequency.

If tire imbalance can be thought of as a "thump", then balance problems at DS frequency might be more of a "buzz". This comparison is weak but it's the best I think of right now.
Reply With Quote
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
2005 Edge 4.0 - Vibration between 60-65 mph 2005_edge Suspension Tech 4 09-01-2010 06:24 PM
The_Dealer: Bad Deal Bad Member Bad Sell! LayingFrame89 Ranger Products, Company, & Member Reviews 34 12-01-2007 07:59 AM
Stock Drivesaft with RCD = BAD BAD BAD PICS INSIDE ranger General Ford Ranger Discussion 32 07-31-2007 12:50 PM
Bad vibration/hum sound 75-80mph cp General Ford Ranger Discussion 7 03-19-2007 08:14 PM
ALL offroaders are BAD BAD BAD! FMD General Ford Ranger Discussion 13 04-25-2006 08:21 AM


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 11:34 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.