Back end swayin at high speeds?

[brucebruce45]

i gotta problem. when i get my tahoe up past 100 mph the ass end starts swayin back and forth. i gota 2/3 drop on it with 24's. i know it's not the wheels cuz i've had 2 sets on it... maybe its the swaybar? or panhard bar? i dunno anybody else havin trouble with this

 

[BlizzardX23]

nope...donno what would cause it to sway back and forth...mine just bounces..how bad does it sway?....like, the top swaying? or is your back end actually doing minor fish-tail type stuff?

 

[brucebruce45]

yeah it's like the whole truck rocks left to right when it gets up that high. i'm hopin it's the sway bars or sumthin simple.

 

[01yukonslt]

its probably wind your truck isnt exactly aerodynamic i know on a windy day my truck rocks back and forth and its stock height i can only imagine what it would do at 100+ mph

 

[Rollin Thunder]

Maybe its speed related lol. like said above these trucks arent exactly raited for that kinda speed.

 

[BlizzardX23]

you guys are dumb...yes they are...what do you think the shark fins up by the windshield are for??

 

[Max]

My guess is the swaybar bushings or rear track bar (panhard bar) bushings. Jack the truck up on the frame and push the rear axle left and right, you should notice play from one side or the other. Mine stays solid as a rock at 100+ but the bigger sways, bilsteins, and tires also play a part of that. May be time to invest in some aftermarket sway bars if your rear sway bushings are shot, best of luck.

 

[Rollin Thunder]

sways make the biggest difference in feel on these trucks. Makes my silverado feel much more planted to the road, and im at stock hight.

 

[01yukonslt]

my point was that hes lifted ten inches thats ultimately gonna play an even bigger role in the fact the truck is unstable at high speeds. a lot of air is goin under the truck at that height.

 

[Rollin Thunder]

Im confused. Do you have 2 tahoes????