Vibration is in the tailshaft - Hemi Truck Club
 
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Old 05-11-2012, 03:17 PM   #1
Greg
 
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Anyone tear up a tailshaft housing? I've got a sloppy front yoke/tailshaft. I won't tear it down until I return from a business trip. But it felt just like a unbalanced rear tire, I had swapped rear rims and was conviced it was a bad rim. But I found the sloppy front yoke. Anyone know of a fix? Also I have a driveline clunk and am going jump to the conclusion that it is related to the output shaft. Has anyone had issues similar to what I am experiencing?

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Old 05-12-2012, 11:38 AM   #2
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I see this is another hot topic so I'll tell you all about it. The clunk was excessive back lash. Tooth pattern looks perfect, but I went ahead and tightened the carrier bearing moving the ring gear into the pinion. played with it until it felt right. I'm going to get one of those bearing tools sometime. But just reaching through the hole and driving the collar tighter sure was a easy way of getting it done. I've a steel driveshaft and that sucker is heavier than I thought it would be. U joints look tight, but I can wiggle the yoke pretty good when it is inserted into the transmission. There is no damage to the yoke. So I'm down to thinking all I need is a tail housing bushing. Haven't been able to locate an exploded drawing of the tail housing to even know if it has one. Any transmission guru's know what I need pls post up or drop me PM?

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Old 05-27-2012, 01:40 PM   #3
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You guys are really missing out with some exciting stuff here. Fred posted up an exploded diagram of the tail housing on another forum and it listed the tail seal and two carrier bearings. No bushing is shown. I ordered the bearings and seal from Advance Auto Parts and picked them up this morning. The bearings are chinese junk, but the tail seal will work. These bearings are rated at "C3" clearance and I can feel just the slightess of slack in them. I'm going to the machine shop tomorrow to see if I can mount the shaft in a lathe and check the bearings better. I ordered new American made bearings today so Red will be down a bit longer. As a side note I also ordered a proper bearing collar tool for the differential from Amazon for $40 which was as cheap I could find. There is some play in the bushing that no one recognizes is there. I'll go by the dealership (spit) and see if i can order a bushing. The bushing lines up with a oil drain hole and has liberal grooves to stay lubricated. We will see. I'll post up some pictures in a bit.









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Old 05-28-2012, 10:46 AM   #4
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Did a little more research and found a Tail Housing seal Kit. It includes the seal and bushing. I finally choose the Timken #5206 bought from Summit for $16 and change.
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Old 05-31-2012, 08:53 AM   #5
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Just got the Differential bearing collar adjusting tool. So I can go back in and do a proper job of setting backlash and load. The transmission bearings are suppose to also come in today. So it looks like I can get Red back running for the weekend. Plus I have my Grandaughter recital to attend. Sweet...
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Old 06-04-2012, 05:49 PM   #6
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I rebuilt the tailhousing with new bearings and seal. Reassembled everything and still have a vibration. I'm going to spin the driveshaft next to if it is straight.
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Old 06-06-2012, 08:50 AM   #7
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Went to a different tire shop with new computerized "state of the art" tire balancer. Put the new rim back on the ground with the suspected tire. It has a hard spot that was picked up by the balance machine and the owner of the shop said, it happens on the rare occassion. The tire will balance but ride like its on a railroad track. The shop I bought the tire from will have a new tire for me in the morning. I'll mount and balance the new tire and hopefully the vibration will be history.
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Old 06-06-2012, 04:57 PM   #8
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Hope that solves the problem for you. Man I'm just sorry you had to go through all that other stuff.
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Old 06-07-2012, 11:56 AM   #9
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Mounted new tire and balanced all four with the computerizws balancer. I have one more tire with a hard spot but was told it was corrected and was a marginal problem. The vibration has changed but it still isn't right. I got no idea what has happened but I believe the wheels are running well enough that there must be something else going on. Driveshaft will be the center of my attention untill I am sure it is not a contributing factor. After that I go back into the differential. But it is running quiet so I'm thinking it can't be the problem. One thing I will say now is I'll never buy Dunlop tires again.
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Old 06-08-2012, 09:08 AM   #10
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Got up early and and switched the new wheels with some old wheels I had. Ran Red down the road and she was clean No Vibration. I was so convinced that it couldn't be the new tires I went to great lengths to find the problem else where. I am such a dumb ***! Went back to my tire shop and told the owner I had another bad tire and was fedup with the tires and wanted new tires in a different brand. Settled on General Grabber UHP 275/55-17. This was actually my first choice but wasn't in stock at the time. A new tire is suppose to have 11/32 thread and can be returned if it has 10/32. Mine are right at 10/32 maybe a little less. I don't think there will be a problem returning them as we have been actively try to solve this problem from day one. Monday the new tires should be in and mounted. We will see. Morale of the story is if your experience says it is something. Then go with it until you are convinced that your gut feeling is wrong.
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