clicking and vibrations when slowing down

I am trying to isolate this problem my 05 access cab v6 6speed is having bad vibrations when decelerating once i let off the gas when i get under 30mph it gets bad untill i stop and it also has a clicking sound and i can feel vibrations through the shifter only. the vibrations make the inside cab creak they are starting to get that bad. this just started last thursday

Im thinking possible u joint issues.
Possible trans issue.

anyone out there have any similar issues. btw the truck has 159k on it and this is the first problem i have had in my 2 years of ownership.

 

I'm not sure what it is, but I would suggest changing the transmission oil and see what happens. But it kinda sounds like it is internal, something wrong inside the trans.

 

im dropping fluids tomorrow when i get home i would tonight but i have a night class.

 

I had one side of a u-joint go out on a old truck, I heard a fate clicking when letting off the gas. The u-joint looked good on the outside, I got it apart and sure enough one of the ends was completely dry. The clicking was the needle bearings moving with no grease. Try tapping the u joint ends lightly with a hammer to see if they move any or rusty dust comes out, or just grab the drive shaft and move it.

 

thanks, I have only visually inspected them they are not missing their caps so im going to have to pull one off and see if its bad i think like $15 or $20 at oreilly's

 

Post pictures of u-joints .. usually its easy to see if they are bad or not...

 

ill have pictures and and an update tomorrow i already bought the u joint tonight and will change it out tomorrow once i get home from work. should'nt take that long.

 

Before you start just throwing parts at it, get it diagnosed first. I lost a weight on my drive shaft on my Dodge Ram, did'nt realize it until I changed just about every rotating part.

 

2x

Sounds like what my first gen did. I didn't have the clicking though. Vibrations are a pain to diagnose, lots of possible causes.

 

ok so i just got done and the vibrations are gone for now and no more clicking but i had one question the black cover that goes over the out put shaft does it have a gasket or something

 

The arrow shows the cover im speaking of

 

There will be a rear seal to the transmission in there if thats what your asking.

 

If I remember correctly, that black shield should be connected to the front yoke...

 

Nevermind, It IS supposed to be on the front yoke.