Bad Vibration!!! Makes no sense

[Mudracer80]

I was crusing down the road last night around 65-70 mph and out of no were I got a bad vibration I thought I had a tire coming apart or something. I stoped and looked at the tires and they were fine. after I took back off everything was fine agian..... 8-10 miles down the road it does it agian.

Once the vibrations starts I can come to a stop and take off and it goes away for a few miles then comes back. Its geting way more frequent today.

I took the drive shaft out today and all the u-joints feel fine, the carrier bearing has a little play in it but thats normal. The pinion doesnt have any play and there isnt any kind of grinding noise when I turn it. The front drive shaft is fine as well.

I'm out of ideas and would really appreciate some suggestions from someone who knows more about these trucks then me.

[TwinTurboStroker]

Originally Posted by Mudracer80

I was crusing down the road last night around 65-70 mph and out of no were I got a bad vibration I thought I had a tire coming apart or something. I stoped and looked at the tires and they were fine. after I took back off everything was fine agian..... 8-10 miles down the road it does it agian.

Once the vibrations starts I can come to a stop and take off and it goes away for a few miles then comes back. Its geting way more frequent today.

I took the drive shaft out today and all the u-joints feel fine, the carrier bearing has a little play in it but thats normal. The pinion doesnt have any play and there isnt any kind of grinding noise when I turn it. The front drive shaft is fine as well.

I'm out of ideas and would really appreciate some suggestions from someone who knows more about these trucks then me.

How many miles since the lift? Did the kit come with a carrier drop bracket?

[Mudracer80]

the 4" lift is not on the truck right now. it is completly stock


I havent got around to putting the lift on yet.

[TwinTurboStroker]

Originally Posted by Mudracer80

the 4" lift is not on the truck right now. it is completly stock


I havent got around to putting the lift on yet.

Oh........how many miles are on the truck? Have you added an aftermarket set of wheels or bigger tires?

[Rob]

jack up each wheel and check your lugs. just a thought.

[Mudracer80]

The back lugs are good but I will check the front. The truck has a 156,000 miles all u-joints have been changed once. Stock rims and 33 12.50 tires.

[TwinTurboStroker]

Originally Posted by Mudracer80

The back lugs are good but I will check the front. The truck has a 156,000 miles all u-joints have been changed once. Stock rims and 33 12.50 tires.

Well it sounds like the carrier bearing needs to be replaced......what kind of tire are your running?

[Diesel Monkey]

Transfer case to transmission bolted tight?

[Rob]

where does the vibration come from, is it in the steering wheel?? the back end?? can you feel it in the brake pedal?

[Mudracer80]

The carrier bearing seems fine. it has a little play in it but its just a rubber insert, I thought that was normal.

I will check the transf to trans connection here in a little bit.

The vibration is not in the steering wheel it seems to be the whole truck, I initially thought it was come from the rear but I secound guessing myself now. It feel just like a tire is coming apart.