Carrier bearing

I’m gonna attach a picture of my bearing. Can anyone tell just by looking at it if it’s bad?

it looks like it setting low. I don’t notice any shaking while driving but I have a weird vibration that comes on at 2000 rpm’s. If I let off gas it goes away and any under 2000 there is no vibration. I’ve done front and rear diffs and transfer fluid changes and spark plugs. Transmission will be after my emery flight to Germany when I get back in two weeks

thanks in advance

 

Move it up and down there should be a little play if a lot of play replace, but that looks ok visually

 

when I was under it last it seemed like I had about 1 inch of movement in it. I don’t see any cracking of rubber. Maybe I will just change it and the rear transmission mount

 

The rubber is about 7/8" thick, if you were getting a full inch of movement I think the resting position of the yoke in your picture would be much lower. In any case, check it again, if it's 1/2" or less that's about normal with some age. Doesn't mean it's not the cause of your vibration, tho. How are the U-joints? They're not easy to check definitively while the driveshaft is in, but if you're in neutral so the driveshaft moves a bit, you might be able to detect a bad one.

There's a message thread that covers driveshaft vibrations, check it out. And if you happen to have a GoPro or a smartphone you don't mind strapping to the frame, you can see about getting some video of the bearing area when the vibrations occur. Someone posted their video after having done this, no question their bearing mount was shot.

 

when I checked them after I bought truck in June I lubed and checked drive shafts and we’re good.

I don’t know if vibration is drive line at all it’s at 2000 rpm and higher. Any thunder is smooth as silk

I did notice last night that the rubber boot over the slip yoke on rear drive shaft is cracking though and I can’t find a replacement for that at all or that silly clip that holds it on

 

Yeah, if the vibes are specific to an engine RPM range vs. vehicle speed range, less likely that the driveline is the source.
I've read here on TW that the rubber boot on the slip yoke is available from the dealer, but it comes already mounted to a shiny new driveshaft. Not separately. The clamp that's on it can be reused if you have the appropriate crimping tool, or a nylon zip tie can be used. Seems to me someone posted about availability of new clamps of the correct size, but probably not worth the $$ to bother when a zip tie will do.

 

From picture, rubber looks good. What is the year of the truck, how many miles, is is lifted and if so, how much is it lifted? I'm still rolling with my original carrier bearing on a 2010, 140K miles, about a 2" lift.

 

2012 65k miles no lift all stock down to the tire size

I’m just chasing down this weird feeling/vibration that is from 2000 rpm on up. Nothing below only above. Doesn’t matter what gear up hill down hill just 200+ rpm

 

Low miles, only 10 years old, and not lifted. I suspect the bearing is OK.

 

To troubleshoot a noise the was related to certain speeds, I removed the carrier bearing mount bolts and rotated the mount upside down of oem. Did not resolve the noise, but certainly positioned the bearing into a non worn portion of the rubber isolator. Takes 5 minutes, be sure to set the brake and chock a wheel.

 

I agree with this trouble shooting for speed. My issue is strictly rpm based at 2000. Maybe it’s just normal and I’m more aware of it because it’s my truck and I worry too much