Got a new shudder!
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From: Davis & Newcastle, CA
Got a new shudder!
So I wrote in another thread about my auto hubs takin' a ***** in the snow last night. But now it seems I've got some more problems. I'm going to be replacing the hubs with Warn manuals.
BUT!! I have now noticed that my truck is shaking at higher speeds. Seems like its pretty bad around 45mph but real bad arond 65mph. It really only targets very certain speeds though. At 72mph, no shake at all. I did give my transmission quite a thrashing trying to get out of the snow last night. Could this be transmission shudder? Or more like out of balance tires? I did burn a bit of rubber from the rears when I was spinning them. Enough to smell it a bit. Also, the transmission does not seem to be acting any different than normal... No strange shift points or missed gears. Suggestions?
-Chris
BUT!! I have now noticed that my truck is shaking at higher speeds. Seems like its pretty bad around 45mph but real bad arond 65mph. It really only targets very certain speeds though. At 72mph, no shake at all. I did give my transmission quite a thrashing trying to get out of the snow last night. Could this be transmission shudder? Or more like out of balance tires? I did burn a bit of rubber from the rears when I was spinning them. Enough to smell it a bit. Also, the transmission does not seem to be acting any different than normal... No strange shift points or missed gears. Suggestions?
-Chris
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Joined: Oct 2006
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From: SoCal, at the beach.
Nice move on the switch to manual hubs. As for the transmission shudder, have you checked the fluid...is it brown (burned) instead of red? I burned the ATF in my truck while off-roading....replaced the fluid and filter; it came good. Have also heard great things about that Dr-Tranny-shudder-stop-stuff.
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From: West Mansfield, Ohio
Does this shudder occur with it in 4 wheel drive?
Point I'm trying to make is, if you have it in 4 wheel and only one hub is locking in, this will cause extremely fast rotation of the spider gears and differential casing around the side gear of the axle shaft of the hub thats not locked in, which at those speeds is not good.
Point I'm trying to make is, if you have it in 4 wheel and only one hub is locking in, this will cause extremely fast rotation of the spider gears and differential casing around the side gear of the axle shaft of the hub thats not locked in, which at those speeds is not good.
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From: Davis & Newcastle, CA
To John SCB:
The fluid was just replaced with Red Line Synthetic ATF about a month ago. I would be very surprised if I burned it already. I did check the dip stick and it appeared to still be very red. And by a strange coincidence, I already have the Dr Tranny shudder stop IN my transmission (in a failed attempt to stop a different shudder I had before this incident).
To handyman:
This shudder was occurring in 2wd. I drove at those speeds for about 2-3 hours in 2wd. But I do think that only my left hub is broken (or the right is just partially broken). When a hub breaks, does it always break into a FREE state? Or can it break in a LOCK state? I shudder(no pun intended) at the thought of driving with 1 broken and LOCKED hub for more than 3 hours...
ON EDIT: When driving the truck again after I posted, I drove it for about an hour, ranging in speed from 55-75mph. The previous statement about the truck shuddering only at specific speeds appears to be FALSE. Although it is more severe a some specific speeds, the whole truck seems to shake at a wide variety of speeds anywhere from 35-75mph (but not necessarilty all the way in between).
The fluid was just replaced with Red Line Synthetic ATF about a month ago. I would be very surprised if I burned it already. I did check the dip stick and it appeared to still be very red. And by a strange coincidence, I already have the Dr Tranny shudder stop IN my transmission (in a failed attempt to stop a different shudder I had before this incident).
To handyman:
This shudder was occurring in 2wd. I drove at those speeds for about 2-3 hours in 2wd. But I do think that only my left hub is broken (or the right is just partially broken). When a hub breaks, does it always break into a FREE state? Or can it break in a LOCK state? I shudder(no pun intended) at the thought of driving with 1 broken and LOCKED hub for more than 3 hours...
ON EDIT: When driving the truck again after I posted, I drove it for about an hour, ranging in speed from 55-75mph. The previous statement about the truck shuddering only at specific speeds appears to be FALSE. Although it is more severe a some specific speeds, the whole truck seems to shake at a wide variety of speeds anywhere from 35-75mph (but not necessarilty all the way in between).
Last edited by Skandocious; Feb 12, 2007 at 01:27 AM.
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From: Davis & Newcastle, CA
All it takes is an ounce or two of snow /ice packed into a wheel to throw it way out of balance.
Good Luck Frank
Good Luck Frank
-Chris
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From: Davis & Newcastle, CA
I drove my truck again tonight and it is still shaking. I'm not sure if it has gotten worse or if I just didn't notice it last night, but now it shakes at pretty much any speed above 30mph. It is not nearly cold enough here to keep a piece of ice or snow in my wheel from melting so that is out of the question. I plan on getting my tires balanced and rotated tomorrow. Does this sound symptomatic of out of balance tires?
-Chris
-Chris
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From: Davis & Newcastle, CA
Just got back from Les Schwab. Had tires balanced and rotated. I watched the guy and he said they were a little out of whack but nothing too serious for tires as big as mine. Sure enough, truck still shakes. Although it does seem A LITTLE better, could just be me. Could driving with a bad hub (or 2) cause symptoms like this? Maybe some broken/loose components in the wheel are causing uneven weight distribution? Totally in the dark here...
-Chris
-Chris
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From: SoCal, at the beach.
It sounds like more of a driveshaft related problem to me. Carrier bearing or slip yoke...especially if you've got any kind of a lift on it. I have not experienced this on my own truck but did have a co-worker (years ago) struggling with a similar issue. Believe it turned out to be an imbalance in the driveshaft and/or angle related problem.
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From: Davis & Newcastle, CA
I had an off-the-line shudder before which I just fixed (before this incident) by dropping the carrier bearing and straightening out the driveshaft. If you're referring to a bad bearing, could that have gone out so suddenly like this?
-Chris
-Chris
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From: Bonita Springs FL
I would take it to a shop with a lift and have them get it up to speed while on the lift. That way when it starts shaking it should be real obvious what the problem is. Without knowing more about where the shaking is coming from, it's tough to diagnose what might be causing it.
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From: Davis & Newcastle, CA
Not a bad idea. A close friend of mine just finished constructing a hydraulic lift at his place, I'll see if its available for use this weekend and have a go at that. Thanks.
In the meantime I'm open for any other suggestions.
-Chris
In the meantime I'm open for any other suggestions.
-Chris
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From: Davis & Newcastle, CA
I have finished replacing my broken hubs with Warn Premium manual hubs, which are working great. But I still have this darned shake, I was hoping maybe the hubs would have fixed it.
So the question is, what could I have done to cause this shake? I got stuck in a snow bank and rocked my truck (in 4wd) forward and back (from Drive to Reverse to Drive to Reverse etc). I did put quite a bit of strain on the truck. What could I have done during this rocking to cause a shake? A bad u-joint seems like an obvious cause, but I checked them by twisting the driveshaft at each u-joint and felt no play. Any ideas?
-Chris
So the question is, what could I have done to cause this shake? I got stuck in a snow bank and rocked my truck (in 4wd) forward and back (from Drive to Reverse to Drive to Reverse etc). I did put quite a bit of strain on the truck. What could I have done during this rocking to cause a shake? A bad u-joint seems like an obvious cause, but I checked them by twisting the driveshaft at each u-joint and felt no play. Any ideas?
-Chris
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From: Davis & Newcastle, CA
Rear driveshaft either bent or out of balance? Maybe a weight came off?
-Chris