65+ MPH rear wobbles

[slipping]

I'm driving and when I get up to 65 70 MPH the rear feels like is wobbleing from side to side like it was windy out (there is no wind). I just bought truck. Dude said has a 9 " lift. Its a fabtech. I don't know much about truck yet.


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[bowtiefreak]

6" suspension lift plus a 3" body lift.

Did you check tire pressure? how to the lift blocks and springs look? tire may be out of balance.

 

[slipping]

Tires gauge at 32lbs. Tires are toyo open country 35x12.50R17LT


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[man n black]

Drive shafts? Maybe out of balance, or possible that your drive line/ suspension angles are all wacko due to the lift?

Good looking truck though!

Ch

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[EastTXYukon]

Are the wheels hubcentric? I just went through a similar deal because my wheels have a center hole thats 108 mm, and the hub on my truck is 78 mm. Got some hubcentric rings and my vibrations are gone.

Just throwin an idea out there

 

[slipping]

thanks for the input. im gonna check both those out tomorrow. im 100% new to the lifted big trucks so im reading the forums and asking the questions.

 

[bowtiefreak]

I always say loo around for something that looks wrong, get under there and push and pull on parts and so on, check U bolts are tight and all that

 

[Ceejkay]

what about shocks? if they were on their way out it would sway like that.. also if im not mistaken the 4drs had rear sway bars, could be way off tho

 

[bowtiefreak]

they do, or did at one point have a sway bar

 

[slipping]

dont know how old shocks are, didnt see a sway bar, or if i did didnt know that was it. im doing some google-ing. ill look more tomorrow. everything seems nice and tight.