For starters, sorry for yet another thread, I didn't want to hijack somebody elses issue and end up confusing everyone with my symptoms in the mix...
The vibes:
They started out subtle and have slowly become more prominent. It is a rythmic vibration. It is on for two seconds or so and then goes away as if somebody flipped a switch. Off for two seconds then back on, and so on. They start when I hit about 50-55mph and continue until i hit about 70mph and go away. It is not a violent vibration like death wobble or anything like that, more like a buzz that I can feel throughout the vehicle
My investigation:
I have narrowed down the issue to the front driveshaft area (aka, i removed the front driveshaft and vibes go away.
Inspecting the driveshaft, all u joints rotate easily, and look to be in good working condition. No loose or joints (and I know what bad u joints look like, I have replaced diagnosed and replaced several)
The front pinion is leaking and I am working on replacing the seal once I track down an air impact ratchet. But the yoke is solid, no bent ears and doesn't move (other than its normal rotation) so would a leak cause this? I am assuming not as removing the driveshaft, the differential still spins.
I did notice the yoke on the transfer case has some in/out play. VERY subtle. I wouldn't have noticed if I wasn't checking everything multiple times. No side to side play or anything else, just in and out. I tried tightening the yoke nut hoping that was it, but it didn't budge. Upon further inspection, it looks as if even the bolt portion goes in and out, not just a loose nut, so tightening it does not look to be the problem. Is there supposed to be play there naturally? Is this a common issue?
i am looking for any possible advice
The vibes:
They started out subtle and have slowly become more prominent. It is a rythmic vibration. It is on for two seconds or so and then goes away as if somebody flipped a switch. Off for two seconds then back on, and so on. They start when I hit about 50-55mph and continue until i hit about 70mph and go away. It is not a violent vibration like death wobble or anything like that, more like a buzz that I can feel throughout the vehicle
My investigation:
I have narrowed down the issue to the front driveshaft area (aka, i removed the front driveshaft and vibes go away.
Inspecting the driveshaft, all u joints rotate easily, and look to be in good working condition. No loose or joints (and I know what bad u joints look like, I have replaced diagnosed and replaced several)
The front pinion is leaking and I am working on replacing the seal once I track down an air impact ratchet. But the yoke is solid, no bent ears and doesn't move (other than its normal rotation) so would a leak cause this? I am assuming not as removing the driveshaft, the differential still spins.
I did notice the yoke on the transfer case has some in/out play. VERY subtle. I wouldn't have noticed if I wasn't checking everything multiple times. No side to side play or anything else, just in and out. I tried tightening the yoke nut hoping that was it, but it didn't budge. Upon further inspection, it looks as if even the bolt portion goes in and out, not just a loose nut, so tightening it does not look to be the problem. Is there supposed to be play there naturally? Is this a common issue?
i am looking for any possible advice
