96GMC2500
Newbie
Hey everyone, I'm looking for some help trouble shooting a wicked vibration in my truck.
It's a stock GMC 2500 crew cab, long box. The vibration starts intermittently, anywhere from 30 - 70 Kph, dosn't go away if the trucks in neutral or not.
Just had it at the tire shop, they couldn't find anything. They wanted to take the diff apart to see if that's the problem, but I brought it home to diagnose on my own after I did some research.
So far I can't find much on the subject.
it feels like a separated tire being driven on at highway speeds. The vibration is pretty severe, loud noise in the cab, feels like the truck is jumping. Stopping and starting dosn't change in, although if it sits for a day, it won't do it.
It seems to only happen after the truck has driven a few kilometers.
So far I'v looked underneath and been able to identify that the center shaft bearing is slightly worn and cracked. It has some play in it, but not a lot. Maybe 1/4 to half an inch. The rubber surround is definitely cracked, but not separated.
The tire guys said they checked the u joints, but I'm not sure if they want to get the truck in to rip the diff apart so they can hit me with a big bill. It's my wifes truck, so maybe they assumed they could pull one on her and make a quick buck.
If anyone has any idea's, or suggestions, troubleshooting tips, etc, or even a thread that already exists regarding this problem, that would be great!
Thanks!
It's a stock GMC 2500 crew cab, long box. The vibration starts intermittently, anywhere from 30 - 70 Kph, dosn't go away if the trucks in neutral or not.
Just had it at the tire shop, they couldn't find anything. They wanted to take the diff apart to see if that's the problem, but I brought it home to diagnose on my own after I did some research.
So far I can't find much on the subject.
it feels like a separated tire being driven on at highway speeds. The vibration is pretty severe, loud noise in the cab, feels like the truck is jumping. Stopping and starting dosn't change in, although if it sits for a day, it won't do it.
It seems to only happen after the truck has driven a few kilometers.
So far I'v looked underneath and been able to identify that the center shaft bearing is slightly worn and cracked. It has some play in it, but not a lot. Maybe 1/4 to half an inch. The rubber surround is definitely cracked, but not separated.
The tire guys said they checked the u joints, but I'm not sure if they want to get the truck in to rip the diff apart so they can hit me with a big bill. It's my wifes truck, so maybe they assumed they could pull one on her and make a quick buck.
If anyone has any idea's, or suggestions, troubleshooting tips, etc, or even a thread that already exists regarding this problem, that would be great!
Thanks!