Very Bad Vibration
Just finished up the AWD Swap and took it for a test drive down the street. It has a serious vibration happening and is very sloppy.
Things I know: The carrier bearings on the driveshaft seem to be in great condition, no rips cracks or anything and they spin freely on the shaft no problem. I can move the shaft in the bushings but was told it looked normal. Video of said play https://www.youtube.com/watch?v=i_my9ekvx1s The u-joints are becoming worn, the front is ok, the middle is smooth as butter, but the rear is pretty notchy. The shaft is straight when it is hanging on the car and has no forward or backwards play at all. The rear drivers knuckle I believe is bent causing that wheel to have a bunch of positive camber and toe. Crazy amounts. The other side is pretty negative on camber and good on toe visually. The rear divers side also has a bad wheel bearing that I am changing when I put the new knuckle on. Going to be hopefully putting a new knuckle on it tonight along with a Precision u-joint to see if that helps any. Any other suggestions? Thanks, Mark |
Re: Very Bad Vibration
This is the u- joint I was going to get http://www.oreillyauto.com/site/c/de...Stores=true#at
And here is where I got my info from. http://www.oreillyauto.com/site/c/de...Stores=true#at |
Re: Very Bad Vibration
Please do not get Precision U-joints!
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Re: Very Bad Vibration
That notchy rear joint probably has a lot to do with the vibration. Does the tubes have any dents in it? It's hard to tell if the driveshaft is straight unless you have it on a balancer to check for runout.
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Re: Very Bad Vibration
ok lol. Only the OEM ones?
The driveshaft tube is dent free. |
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I would suggest a balance after installing new joints. You might get lucky but most of the time it gets out of balance.
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Re: Very Bad Vibration
Yup just saw that they only come with 1 of the 3 different sets of snap rings
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Re: Very Bad Vibration
I don't know if you're planning to get it balanced but I would definitely recommend buying new hanger bearings and all 3 joints if you do balance it.
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Re: Very Bad Vibration
ok I may just try to replace the u-joint without a balance and see if it still vibrates. How much do balances normally go for? This vibration is terrible at like 5mph and over. Can't go more than 20ish without feeling like something is going to break.
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Re: Very Bad Vibration
can anyone chime in, if the toe was out far enough would that cause a very bad wobble/ shake vibration?
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Re: Very Bad Vibration
where can u get them balanced?
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Re: Very Bad Vibration
^ What dsmghost said. Toe will not cause a vibration. The only things that typically cause a vibration when it comes to wheels and tires are a bent rim, unbalanced wheel, or very, very bad wheel bearings.
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holy shit thats crazy expensive. I guess if you need it you need it.
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Re: Very Bad Vibration
thats very cool i plan on just buying the dss when i need it. mark i have the ds that i twisted the u joints out of at pg last year if it comes down to needing spare parts altho it deff wasn't pretty when it happened
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I think any u-joint is better than the rear one. I'm going to post a video of it https://www.youtube.com/watch?v=HFu8...ature=youtu.be Can see it being notchy and kinda "sticky" |
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