[Wdntulk2no]

Ok guys 2008 pilot AWD. started shaking from the back to the steering wheel. Replaced all 4 CV and it’s still there. (Whole other story. Someone mentioned change diff fluid but I just did that not 3k ago. So I started poking at the drive shaft and if I grab it and pull back and forth there is some wiggle. I can’t seem to load a video here but let’s say it moves 1/8th inch in all directions when pushed / pulled.

 

[aggrex]

Check that the rear sub-frame is secure against the unibody cross member. Some owners in the rust belt have severe corrosion with the unibody cross members. Hopefully it's not the propeller shaft assembly.

 

[plplplpl]

^^^What he said, and to post a video here, upload it to YouTube and just paste its URL in the text box here.

 

[Wdntulk2no]

thanks forgot about YouTube! Here is the video link.

 

[Wdntulk2no]

Check that the rear sub-frame is secure against the unibody cross member. Some owners in the rust belt have severe corrosion with the unibody cross members. Hopefully it's not the propeller shaft assembly.

I was just under there replacing shocks and adding that lift kit. There is some rust but nothing staggering. I can double check it to make sure but looks solid. The shaft isn’t too bad on Rock auto 250-400 or so. I know some dislike them but idk if can pay X for Honda at the moment. Anyway I uploaded the video to you tube if you get a min the movement doesn’t seem right to me.

 

[aggrex]

I'll check my propellor shaft assembly tomorrow after work for any unusual movement. Honda parts guy did mention it could be a source for steering vibrations after CV axles and other front end components are ruled out. I didn't notice nor look for any movement when I lowered the propeller shaft assembly when installing my sub-frame kit.

 

[Wdntulk2no]

thanks much appreciated. I’ll prob go up to Honda as well and ask the guys just to be sure. But always looking to double check a dealer.

worst case I have a 20year Honda master mechanic about 30mins from here that runs his own shop.

 

[aggrex]

Went under the Pilot today and grabbed hold of the propellor shaft and there was very, very little forward and backward movement compared to the movement as seen on your u-tube video. There was no rotational movement of the propeller shaft with hand strength.

 

[The Todd]

IIRC, drive shafts should have NO wiggle at the universal joints.
As it get worse, the vibrations get worse.

On a RWD vehicle, if you just pushed in the clutch, or popped it in neutral for all you Auto tranny types, the vibrations gets way better/gone.

 

[Wdntulk2no]

Looks like a job for RockAuto.... because I can’t afford the dealer! Thanks so much for checking.

 

[aggrex]

Looks like a job for RockAuto.... because I can’t afford the dealer! Thanks so much for checking.

Think a complete propeller shaft assembly from the wrecking yard might be better than yours?