DII front driveshaft issues, amazing how quickly they come on

[ptschram]

My wife sends me an e-mail this morning telling me there is a problem with her truck. A vibration at about 40 MPH that goes away as speed increases.

Sent the kid to get the truck, rode with him for a few hundred feet. Yep, pretty obvious.

The point here is that she drives this truck every day, about 25 miles to/from her office. Yesterday, no vibrations, this morning, obvious problem. I'm amazed at how quickly it became an issue.

On the bad side, found coolant leaking from left cylinder head.

GRRREAt, another headjob-but this one won't pay, and the machine shop I use is closed down until June as the proprietor is out with shoulder surgery..

 

[Blue]

stock shaft?

 

[ptschram]

stock shaft?

Aftermarket replacement. Put on after the original one blowed a hole in the side of the transmission.

 

[Jake1996D1]

Aftermarket replacement. Put on after the original one blowed a hole in the side of the transmission.

Care to share what brand and how many miles it had on it? Bad cv or uj?

 

[ptschram]

AllMakes. Didn't bother to record the mileage-looks like it was a coupla years, maybe 40K miles. Don't know what failed yet, it's really tight and smooth. I R confused.

Probably won't even get a chance to tear into it for a week or so.

 

[Some Dude]

Another shaft with sealed UJs? Or we're you greasing these ones and they still went bad? If so, how often?

 

[ptschram]

Greasable joints.

I doubt I greased it enough. Either way, my intent was to emphasize how quickly this went from smooth to vibrating.

Tuesday evening, fine.Wednesday morning, vibrating.

 

[rovercanus]

Shoulda called Disco Mike.

 

[honda50r]

Do you and your wife socialize via email? Lol

 

[ptschram]

Do you and your wife socialize via email? Lol

during the workday, we communicate via e-mail. We socialize via Facebook

 

[p m]

Tuesday evening, fine.Wednesday morning, vibrating.

Damn I hate it.
I had beginnings of clearly load-related driveline vibrations on the stock D1; last Saturday, pulled the front driveshaft - perfect, no play, no binding, plenty of grease. Put it back in. Pulled the rear - U-joint is fine, rotoflex donut just begins to crack.
Replaced the Rotoflex.
Now there's no load-related vibration; but now there's a vibration that is inexistent until 75mph, and very noticeable at 80 mph. Not load-related at all.

Of all things in the last 2 years, driveline vibrations and loose Panhard rods took the most of my garage time.

 

[Jake1996D1]

Check your tcase mounts I had same problem testing the new ones today

 

[hilltoppersx]

my girl loves when my driveshaft wobbles

 

[Jake1996D1]

my girl loves when my driveshaft wobbles

She let's you get it greasy

 

[ptschram]

Damn I hate it.
I had beginnings of clearly load-related driveline vibrations on the stock D1; last Saturday, pulled the front driveshaft - perfect, no play, no binding, plenty of grease. Put it back in. Pulled the rear - U-joint is fine, rotoflex donut just begins to crack.
Replaced the Rotoflex.
Now there's no load-related vibration; but now there's a vibration that is inexistent until 75mph, and very noticeable at 80 mph. Not load-related at all.

Of all things in the last 2 years, driveline vibrations and loose Panhard rods took the most of my garage time.

I had been enjoying not having any driveshaft problems for a LONG time.

My old DI used to go through driveshafts at an alarming rate.

I'd gotten complacent, glad SWMBO hadn't.

 

[ptschram]

Curious! Atlantic British just sent me an e-mail indicating that front driveshafts are back in stock-OE quality. LOL. Isn't it the OE ones that blow through the transmission?

$530

 

[p m]

Some stuff from AB is reasonable, but larg(er) items are most often out of whack.

By the way, one of my trucks exhibited driveline vibration that I traced to the left-side CV joint. 170kmi.

 

[Jake1996D1]

Some stuff from AB is reasonable, but larg(er) items are most often out of whack.

By the way, one of my trucks exhibited driveline vibration that I traced to the left-side CV joint. 170kmi.

How did you finally figure it out? I think mine are on their way out..

 

[Jake1996D1]

Curious! Atlantic British just sent me an e-mail indicating that front driveshafts are back in stock-OE quality. LOL. Isn't it the OE ones that blow through the transmission?

$530

Saw that too looks like a GBR shaft I asked why it costs so much on LRF when it was posted. No response..

 

[p m]

How did you finally figure it out? I think mine are on their way out..

When I made absolutely certain the driveshaft was all right, I noticed that when I spun the front axle pinion by hand it took up slack not at once, but in what felt like crumpling a piece of aluminum foil.

Of course, I pulled the right-side axle/CV joint first.... To see there was nothing wrong with it. I have to say that, given the driver-side CV joint I took out and a good one, I'd have a hard time telling which was wrong. I have that CV joint sitting on my workbench, with no obvious signs of being bad.