Pinion Bearing gone bad.

[wvyankee2]

About 15000 miles and it sounds like a remote control airplane flying under my Jeep. Just wondering if anyone else has had failure with them?

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[duvinclunk]

I’m getting a similar sound but I have 600 miles on the truck and just regeared to 5.13.

Did yours just start or was it progressive over time?

 

[Andy29847]

The rear pinion bearing is is not your normal cone shaped roller bearing. It's more of a ball in a groove bearing. Others have had trouble, generally after re-gearing.

 

[Saltymedic]

My Glad has had a driveline vibe @ 60-70 ever since I bought it. I wonder if that's what my problem is? ?

Either way, I'll be watching this thread.

 

[duvinclunk]

The rear pinion bearing is is not your normal cone shaped roller bearing. It's more of a ball in a groove bearing. Others have had trouble, generally after re-gearing.

My mechanic did mention that about the JL/JT bearings. So due to the design, will they be noisier or would it still lend itself to them being done improperly in some way?

 

[Andy29847]

My mechanic did mention that about the JL/JT bearings. So due to the design, will they be noisier or would it still lend itself to them being done improperly in some way?

I was an excellent telephone repairman. With that in mind, it is my opinion that the ball bearings in a Grove have less tolerance to poor setup. My experience (with similar design wheel bearings) is they get noisy when we worn more so than opposing cone shaped roller bearings.

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