J10 20 MPH Front End Vibration Help - JeepForum.com

 
LinkBack Thread Tools
post #1 of 2 Old 05-23-2013, 10:42 AM Thread Starter
cy5355
Registered User
1974 J-Series Truck 
 
Join Date: May 2013
Location: Franklin
Posts: 1
J10 20 MPH Front End Vibration Help

Need suggestion to diagnose - I have a 1974 J10, Auto, Quadra Trac. At approx 20 mph there is a serious front end vibration that is felt on the steering wheel then goes away at 25 mph. The truck has had both differentials rebuilt, all new u-joints, new trans mount, transmission checked out, new tires 15" nothing wide or fancy, all new vacume lines for 4wd. This vibration has been there since I purchased the truck also has a Big Country lift kit on it. The truck runs great before and after the 20 MPH - The front end is tight as in tracs straight on the highway no sway or correction needed. - should I take the front shaft off an see if vibration goes away? Motor mounts? Any suggestions.

Also there is a 360 engine in the truck - it is not the original --- I cant fine any numbers or tag on it to identify it - where would it be?

Thanks for your help.

cy5355 is offline  
Sponsored Links
Advertisement
 
post #2 of 2 Old 12-07-2013, 11:49 AM
aagill225
Registered User
2000 TJ Wrangler 
 
Join Date: Nov 2008
Location: Kayenta, AZ
Posts: 609
Maybe the tires are mis balanced. Check to see if the weights are missing from the rims. The tire could also be "out of round" or have broken belts. Bad shock could also cause the same issue.

'99 WJ, 4.7L, completely bone stock, except for 245/65/16 tires
'76 Jeep Grand Waggy, 360cid Edle 660cfm/edle intake Quadratrac
'02 Exterra 3.3L, 5-spd, traded YJ for it :(
'89 YJ 2.5L, 5-spd, Borla header, dynomax super turbo muffler, Big-O XT 30x9.5r15
2004 Jeep Liberty Renagade 3.8L 2wd
'86 XJ 2.8L V6, 5-spd manual tranny (My 1st)
aagill225 is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the JeepForum.com forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid e-mail address for yourself.



Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Posting Rules  
You may post new threads
You may 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 On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome