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ZUKIWORLD Discussion Forum => Suzuki 4x4 Forum => Topic started by: SKAsammy on February 28, 2008, 07:19:27 PM

Title: front end vibrations
Post by: SKAsammy on February 28, 2008, 07:19:27 PM
its a 91 sammy... the front end vibrates pretty hard, but only when im in 4wd i thought maybe it was the u joints and they needed to be replaced anyway so i did em but the vibration is still there and has gotten worse over the last 4 or 5 months, I dont know much about working on axles but am willing to learn if someone can help diagnose my problem. any help is appreciated, thanks in advance
Title: Re: front end vibrations
Post by: SKAsammy on February 29, 2008, 02:04:35 PM
anyone??? ???
Title: Re: front end vibrations
Post by: ripsnort on February 29, 2008, 03:21:36 PM
Check to see if your front drive shaft is balanced.  I may be bent as well.... I have a rock crawler that has a home made front shaft and it is miserable at anything above than 10-15 mph.  Hope this helps.
Title: Re: front end vibrations
Post by: Drone637 on February 29, 2008, 05:30:54 PM
It sounds like a front drive line issue, like ripsnort mentioned.  A good way to test would be to pull your front drive line, then drive around with your hubs locked in.
Title: Re: front end vibrations
Post by: ack on February 29, 2008, 06:46:31 PM
Take a look at this video at Ack's FAQ:

http://www.acksfaq.com/driveshaftvideo.php (http://www.acksfaq.com/driveshaftvideo.php)

Care to guess why I made this video???
Title: Re: front end vibrations
Post by: Drone637 on February 29, 2008, 07:27:39 PM
You know, I had been wheeling for years before anyone mentioned that you had to do that to your drive lines.  Guess I never went fast enough for it to matter.  :D
Title: Re: front end vibrations
Post by: Cuthulu on February 29, 2008, 09:57:52 PM
Quote from: ack on February 29, 2008, 06:46:31 PM
Take a look at this video at Ack's FAQ:

[url]http://www.acksfaq.com/driveshaftvideo.php[/url] ([url]http://www.acksfaq.com/driveshaftvideo.php[/url])

Care to guess why I made this video???


If I ever meet you in person I am so going to buy you some drinks.
Title: Re: front end vibrations
Post by: SKAsammy on March 03, 2008, 02:08:04 PM
sorry, i forgot to mention i already checked my d shaft and it is aligned i also replaced my d shaft with another used one in case it was bent but it still has the vibration.  If i take it off and ltry to drive it in 4wd will anything get screwed up?
Title: Re: front end vibrations
Post by: Drone637 on March 03, 2008, 07:03:25 PM
Nope.  In reality though, you don't have to drive in 4wd, just have your front hubs locked in.  This will allow the parts in your front end to rotate freely.  Of course, this test only works if you have manual hubs... should have mentioned that. 

I was picking up some vibrations, it ended up being a problem in the diff.  With the drive line disconnected I rotated the diff by hand and could feel it binding up.  A quick tear apart and reassembly fixed the problem.
Title: Re: front end vibrations
Post by: SKAsammy on March 04, 2008, 05:26:41 PM
cool thanks, ill try it this weekend and let you know what happens