I've been looking for other threads about this issue and seen a few that look similar but I've yet to find anyone that describes a problem exactly like mine.

When bring my truck to complete stop, at the very last moment when the brakes finally catch and the suspension settles down to a resting position, there is a shuddering/vibration. It lasts for just that very small moment when the truck comes to it's resting position, then it stops. When I'm ready to accelerate again, the truck does the same shuddering off of the complete stop, again for only a fraction of a second, and then the truck continues on it's merry way without issues.

The two vibrations almost seem like one is undoing the other-- as if coming to a stop is binding something up in the drivetrain and then accelerating off the stop is unbinding it.

My first thought was to check the slip yokes on the driveshaft-- I've got a long truck with a 2 piece driveshaft, and there is a splined yoke at the transfer case as well as a splined yoke near the center support bearing on the shaft. I crawled under the truck and with enough movement in the rubber center support isolator I was able to move the front (small) driveshaft section forwards and backwards-- both yokes seemed to slide very freely. I was thinking perhaps one of them needed some grease but that doesn't seem to be the case...

My truck did not do this until about 3 weeks ago (around 3200 miles) and then it suddenly came on like a ton of bricks.

Anyone else experiencing this? Any ideas?

 

Sounds like my issue - had to have the axle greased and all was well when taking off from a stop.

 

Can you be more specific? The rear axle houses many components... None of which usually take grease, actually...

 

Bump. Nobody else has this issue?

I was also thinking perhaps it could be bad shocks on the rear... I know a lot of you guys were reporting early shock failures and leaking shocks; though I don't see any fluid seeping from mine.

 

These transmissions are known to have a bad 1-2 shift and 2-1 shift. You aren't alone

 

I've read all about the 2-1 shift problems-- that's not what this is. This happens long after the transmission shifts down into 1st when coming to stop, and long before it shifts out of first when I take off again. It happens RIGHT when the truck settles to a stop or RIGHT when I start moving again.

 

UPDATE: If I shift my transmission into neutral before I start slowing down to a stop, it does not vibrate when I get to the complete stop. Shift it back into drive and start going again, vibrates... Same as before.

So I think this probably points to the transmission as being the culprit, but I'm not totally sure.

 

UPDATE (if anyone is reading)

The problem is fixed! Took it to the dealer this morning and they found that my driveshaft to pinion angle was not quite right, so they shimmed down my center support bearing with some washers (2 or 3 on each bolt) and the problem is 100% gone.

Side question-- I had a similar driveline vibration on my previous truck after lifting it and after lots of researching I found that I needed to shim down my center support bearing, just like in this situation. But for my old truck I bought a shim kit-- big metal shims that stretched from bolt to bolt. Is it really safe to just use washers like the dealer used? My assumption is that if it's only a couple washers then it's probably not an issue. On my old truck I had to shim 1+ inches.

 

I have the problem similar to your with the exception that mine doesn't do it when coming to a stop. It only does it when I take off from a complete stop, and only in 1st gear.
I have not mentioned it to the dealer since it is so slight.
But what does concern me and I have not done yet is putting 500+ lbs. in the bed of the truck and see if it get worse. Some have said..."wait until you get a load on your truck, the shudder gets worse."
Others have said they have felt the shudder when towing is also worse.

Have you experienced these before or after your washer shims? Just curious to know and what to expect when I do have a load in the truck bed or do some towing. I have been holding off about mentioning this to the dealer.

 

If you put a load in the bed, it will have the same effect as shimming down the center support bearing, because the body-height will decrease but the pinion height will stay the same. If anything, the shudder should get better with the truck loaded.