Ok so I have a new vibration in the front between 40-50 mules an hour and worse if you turn left??
so I have a new front driveshaft since May or so.
new lift installed 2 inch terrafirma kit.
new sway bar links the taller ones
new steering damper and track and rod all heavy duty.

Tires are iffy and could be the problem.
but when doing it taping the brakes calms it down.
and alignment was done the other day too.

Keith

 

A balance weight could have fallen off off a wheel or off the front driveshaft itself.
You could swap the tires front to back and see if it changes
Also pull the drive shaft take it to a drive line shop and have them confirmed its balanced.

 

as above......I would consider the drive shaft as you say you have a new 2" lift..... I had a D shaft vibrate at only 50-55....went bad a few weeks later.....I replaced it with a cheapy ebay one and it has been fine since...

 

I did a lift and new front drive shaft on my 03. Had a vibration around the same speed. Different front drive shaft solved things.

 

Damn that means buying a new shaft grrrr

 

Merebel,

Here is the most affordable German built drop in @$188 if it does turn out to be your drive shaft. Not sure this will work if you have a 2" lift but you can call Lucky 8. You can also have your current driveshaft rebuilt by a driveline shop, but I bet they will be at $175 -$200 for labor and Ujoints depending where you live. As mine cost that much to rebuild 10ish years ago

https://lucky8llc.com/collections/di...ont-driveshaft

 

Drive shaft came from lucky 8 around April or May of this year

 

I presume it's a custom built one then? Can't they just be rebuilt or serviced?

 

Took a look at the drive shaft visually looked good. Greased it to be sure. Double checked the lift and all the bolts.
how ever did get this yesterday light brake peddle the front started shaking full brake it went away.
then at 55 mph left turn on the highway shook again real bad you could really feel it in steering wheel until brakes pushed to slow down.