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Discussion Starter #1
So, after it's been on for around a year, I'm finally addressing the Check Engine light for the evap leak on the gas cap and fuel filler hose and some kind of solenoid in there somewhere. (Throwing in a new fuel filter while I'm at it too.) I'm also looking at fixing a vibration coming from the drive shaft. I suspect a worn out carrier bearing. Being that the truck is at 300k miles, It's probably due.

My question is if I'm going to replace the carrier bearing, do I go ahead and replace the u-joints as well? The shaft has been vibrating/buffeting for a while and there's sometimes a shock when releasing the brakes from a stoplight when the torque returns to the shaft. The one thing I don't want is to do all the work to replace the carrier bearing and then four months down the line have a u-joint go out due to excessive wear. I have to take the shaft off anyway....sooo.....

Hmm....Maybe I just talked myself into it. Cheap preventative maintenance, and all that! Maybe I just need a few more opinions to reinforce my instinct.

The adage of spend a little more now to prevent spending a lot later is rattling around in my head. What do you guys think?
 

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I could definitely be wrong but I don't think Sequoias have carrier bearings. I found that in some forum posts here (and on other sites) and immediately got excited about a relatively cheap bearing to replace. Surely that couldn't hurt anything, right? Turned out that I couldn't find a part number anywhere. Finally, I under the truck and look around. If memory serves, the drive shaft goes directly from the back of the transfer case to the rear axle, no carrier bearing. Now that I say that, maybe it is different for 4wd vs 2wd. I know that most of the references I found were for Tundras.
 

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Discussion Starter #3
What I read for symptoms of a bad carrier bearing matched the symptoms I've been having with my truck. Now that I've gone back and looked, all of the pictures and write ups are for Tundras. I assumed that the running gear was the same for Sequoias. I'll be crawling under and exercising my eyeballs.
 
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