Front end shake...is it the hubs??? - JeepForum.com
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Unread 07-17-2010, 06:40 PM   #1
TheGhost
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1983 CJ7 
 
Join Date: Feb 2010
Location: Tennessee
Posts: 120
Front end shake...is it the hubs???

I've completely rebuilt the front end on my 83 CJ-7 (just because it needed it, not to attempt to fix this problem) - had it to the alignment shop - everything is good. I get a slight wobble above 50 MPH - it can be seen and heard. The rims were checked when I had the tires put on (31 X 10.50) and all were straight and the tires balanced pretty well without much weight (less than 1.5 ounces anywhere). Just for grins, I locked the hubs in today and to my surprise, it almost completely went away. So - could it be the hubs????

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Unread 07-17-2010, 09:00 PM   #2
82JeepCJ7
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1982 CJ7 
 
Join Date: Jun 2010
Location: Marysville, WA
Posts: 4,660
With the hubs unlocked, crawl under with a small pry bar and pry up on the front axle U joints at the knuckle. See how much play there is. I had the bearing inside the spindle that supports the axle shaft go out on me before and it allows the axle shaft to droop.
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Unread 07-18-2010, 08:08 AM   #3
TheGhost
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1983 CJ7 
 
Join Date: Feb 2010
Location: Tennessee
Posts: 120
Quote:
Originally Posted by 82JeepCJ7 View Post
With the hubs unlocked, crawl under with a small pry bar and pry up on the front axle U joints at the knuckle. See how much play there is. I had the bearing inside the spindle that supports the axle shaft go out on me before and it allows the axle shaft to droop.
I'll check that out today - but, wouldn't that be just the opposite of what I described??? It would seem that if the bearing was bad causing the axle to "droop", you'd get the "wobble" when the hubs were locked in and that axle is turning, not the other way around.
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Unread 07-18-2010, 08:18 AM   #4
josh97
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1986 CJ7 
 
Join Date: Mar 2010
Location: iowa, ottumwa
Posts: 207
My brothers cj7 had a bad vib at hiway speed..come to find out the front drive shaft slip yoke was bad...The hubs were unlocked but still had enough kenetic energy to turn the front shaft that was causing the driveshaft to move and hense the vibration...
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ball joints , death wobble , knuckles , shake , shimmy , steering , steering knuckles , Tie rod end , tie rods , ujoints , wheel bearing , wobble
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