99 tahoe with 6" suspension

[Taylor Fitez]

I've had the 6" suspension lift on for a couple years now. Running 35s on it. I have thenough vibration at higher speeds,what could be the cause of that?

I've read about thevery aftermarket front driveshaft with the push 4x4 but I never switched, should I?

I have a honk when I go from a complete stop?

 

[drakon543]

Out of alignment with aggressive tires will vibrate sometimes. Wheels not balanced fully (some shops claim its the best they can do with 33+). Bad shocks can cause vibration but i usually find something else with that problem. Driveshaft has a bad angle due to a high lift and is actually slightly binding and should be fixed asap. Driveshaft is not balanced and will vibrate and feel like a tire out of balance.

 

[jerryjoe28]

2 door or 4 door? @Taylor Fitez

 

[Taylor Fitez]

Here she is.

 

[Taylor Fitez]

It's a 4 door , auto trac 4x4.

 

[EzSkAnKeN]

It's not the lift. When's the last time you rotated and balanced your tires? Alignment at least once a year. At least I do because it's free from Firestone.