hurtpuppy

got it back from new drive shafts and u-joints still no change . Took it to a trans and rear garage were that is all they do, went for ride and listened to the trans. with dash switch in nutral and gear shift in high gear, he said the problem is in the trans. he thinks when they put it together they for got a thrust washer or evan the little bearing that gets pressed into the main shaft. the other thing he said it might be is that the there is no preload on the counter shafts and they are bouncing around in there.

thanke for the reply theakerstwo I took it to a drive line specalest today, they said it had wear that was normal for 11 years old but they replaced the slip yoke and u-joints, didnt realy need it but they wanted to make every thing tight to rule this stuff out. the owner teaches class on this stuff and said angleation is verry important and will set it properly. They took it for test ride before the work and did not finish it today, so we dont know the outcome. but they dont think all this is going to fix the vibration they felt and herd on the test drive.they also beleave it is in the trans. I showed them how to put the trans. in Nutral using the nutral switch on dash, put trans. in high gear hi split let clutch out and feel the vibration and watch the mirrors shake the trans sounds like the back half has no oil in it but it is full. will post the results.

Thank for the reply macktrucks4 That is what I thought also. Just to be clear I am looking through the left side cover in the back half looking forward wich would be the back of the gears. I am going by the yellow paint marks that is on the grars. If you would go through the trouble to mark them with a yellow paint marker would'nt you make sure they lined up. Or am I looking at them in the wrong direction. and what i see they are off by one or two teeth.

I had a vibration for two years, it would come and go. took it to dealer told them i found a 25% piece of snap ring in the trans when i changed the oil about five years ago. They said it was the snap ring near the syncro pack. took the trans apart and the snap ring was still on, broken but still on, never came off. The mechanic said the vibration was not in the trans. but it was the clutch. His quote "the vibration would be gone when done". They put an upgrade shaft in it to except a thicker snap ring plus a gear and bunch of other stuff $3000.00 worth other stuff. The truck vibrates so bad now that it kills me to hold the thlottle in it. They are saying it is driveshafts and u-joints. When I push the clutch in, rolling to a stop and it is bumppy wich makes the driveshaft have back lash it sounds like there is a bucket of bolts clanging in the trans. It never did that before. The side cover was leaking a good amount of oil overnight so I took it off the cover to reseal it. I turned the rear wheel by hand and the timing never lined up with each other they are close but not on, is that something to be worried about. How important are them timing marks. Is it possible the new gear does not like the old gears and are not meshinh right?