THRILLBILLY
1/2 ton status
So, I knew going into lifting my K5 over 6" I was going to run into issues with the driveline. I have a total of 11" for suspension lift now. I had a driveshaft made to correct length, and I also dropped the transfer case to help that. I didn't do a CV because I didnt have the money since I was moving at the same time. the rear yoke is at a good angle, but the front is a different story. 
I put the driveshaft in and left the driveway, there was no kind of vibration or rattle of any kind for the first day or two so I thought, wow i got lucky. the next day when driving it I noticed a vibration but it wasnt all the time. From stop to around 40mph there is nothing, its smooth as glass,but from 40mph to about 45mph or so there is a vibration that feels like the driveshaft but it goes away after that and there is nothing on through 65mph...
I took a look underneath my truck for anything else that could be causing a vibration and noticed my cossmember mount to the transfer case is shot. The shaft has two brand new u-joints in it, but that inst the issue im thinking since they are brand new. I might answer my own question with this, but in my case is 40-45mph the perfect speed for the vibration to show up and go away or could it be something like the crossmember mount not holding the transfer case steady causing a chain reaction there for resulting in vibration issues???
I put the driveshaft in and left the driveway, there was no kind of vibration or rattle of any kind for the first day or two so I thought, wow i got lucky. the next day when driving it I noticed a vibration but it wasnt all the time. From stop to around 40mph there is nothing, its smooth as glass,but from 40mph to about 45mph or so there is a vibration that feels like the driveshaft but it goes away after that and there is nothing on through 65mph...
I took a look underneath my truck for anything else that could be causing a vibration and noticed my cossmember mount to the transfer case is shot. The shaft has two brand new u-joints in it, but that inst the issue im thinking since they are brand new. I might answer my own question with this, but in my case is 40-45mph the perfect speed for the vibration to show up and go away or could it be something like the crossmember mount not holding the transfer case steady causing a chain reaction there for resulting in vibration issues???
