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ZUKIWORLD Discussion Forum => Suzuki 4x4 Forum => Topic started by: delriowil on August 23, 2008, 10:02:24 AM

Title: shake in the front end
Post by: delriowil on August 23, 2008, 10:02:24 AM

I did a SPOA and now have a shake in the front end. I can not find what is doing it. I have had my tires rebalanced. but still shakes horrible even at slow speeds. any ideas of what is causing this. could it be the angle of the drive lines to the front axel making it do this.

Title: Re: shake in the front end
Post by: ROSS on August 23, 2008, 11:59:15 AM

how's the allignment???

Title: Re: shake in the front end
Post by: RHodge on August 23, 2008, 01:00:08 PM

Is everything tight,  you also might want to look |removethispart|@ the shackle & spring bushings in the front,
did you change the streering, could be bad tierods, or kingpin bearings

Title: Re: shake in the front end
Post by: ack on August 23, 2008, 02:45:14 PM

Quote from: delriowil on August 23, 2008, 10:02:24 AM

...could it be the angle of the drive lines to the front axel making it do this.

If you changed the pinion angle on the front differential, you created two problems:

1  A radical change to the caster angle that  will make the truck difficult to steer.

2. If the operating angle of the u-joints are not identical you will have vibrations.  This is caused by pointing the differential up at the transfer case on either driveshaft instead of trying to match the factory pinion angle.

For more info on the above, do a search for driveline at Ack's FAQ (the link is in my signature).  The bottom two links are what you need to check out.

Then there is the dreaded "out-of-phase" driveshaft!

If you do not properly assemble either driveshaft (assuming that you pulled them apart at some point) they will cause vibrations and, if not properly re-assembled, will destroy the U-joints.  check out the following links:

http://bbs.zuwharrie.com/content/topic,16725.15.html (http://bbs.zuwharrie.com/content/topic,16725.15.html) (for the bandwith-challenged).

http://www.acksfaq.com/driveshaftvideo.php (http://www.acksfaq.com/driveshaftvideo.php)  The video version...


I hope that this helps!
 

Title: Re: shake in the front end
Post by: delriowil on August 25, 2008, 03:29:20 AM

Thanks guys, I will look at some of these today when I wake up.


Wil

Title: Re: shake in the front end
Post by: bentparts on August 25, 2008, 03:37:19 AM

 ;) Wow, you can read and type in your sleep? Cool!

Title: Re: shake in the front end
Post by: ROSS on August 25, 2008, 07:59:27 AM

I know alot of people that do that at work everyday

Title: Re: shake in the front end
Post by: delriowil on August 26, 2008, 10:00:52 AM

Funny guys, I work nights. 4 to 4 shift.

Title: Re: shake in the front end
Post by: Jeremiah on August 26, 2008, 03:51:13 PM

Quote from: bentparts on August 25, 2008, 03:37:19 AM

;) Wow, you can read and type in your sleep? Cool!

 :laugh: