WJ front propeller/drive shaft

Hi, My WJ started making a humming noise at speeds greater than

15 mph. When this happened on my YJ, it was due to a worn ring and pinion in the rear dif. I inspected the rings and pinions on both the front and rear difs as part of other maintenance and they looked fine. The sealed U-joints in the rear drive shaft are still tight. I have not looked inside the t-case, but the special quadradrive t-case goo was recently replaced.

The front propeller/drive shaft, however, rattles when I shake it. Both the front and rear CV boots are not torn. After poking around, I came across this:

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Before I blow 4-500 bucks on a new front drive shaft, am I looking in the wrong place?

I can't seem to find this part on line except at the Wyckoff dealership.

Anything else I should look into?

/herb

Reply to
Herb Leong
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Try

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I've used them in the past for OEM parts and always had good results. They are a dealer, just not one that gouges.

napaonline.com might have something.

Reply to
DougW

In article , DougW wrote: #Herb Leong wrote: #> I can't seem to find this part on line except at the Wyckoff #> dealership.

#Try

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I've used them in the past for OEM #parts and always had good results. They are a dealer, just not one #that gouges.

Wow. That is scary. Both chryslerpartsdirect and Wyckoff are NJ dealers, have almost the same web interface for parts selection... etc, etc... And they are 10 bucks off from each other for the part.

/herb

Reply to
Herb Leong

You can just remove the driveshafts one at a time and drive it to figure out if either is causing the noise.

Mike

86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail >
Reply to
Mike Romain

#> Before I blow 4-500 bucks on a new front drive shaft, am #> I looking in the wrong place?

Mike Romain wrote: #You can just remove the driveshafts one at a time and drive it to figure #out if either is causing the noise.

Good idea... Thanks!

/herb

Reply to
Herb Leong

"Humming noise" is often a wheel bearing. I have heard propeller shafts making what can be described as vibrations or humming, but only at higher speeds than you mention. Take the shaft off and check for binding and play in the joints. When u-joints start to go, binding may be apparent before play. Before buying a new propeller shaft, check with your local parts store to see whether the joint is rebuildable.

Earle

Reply to
Earle Horton

:) It's a standard parts interface but not all dealerships make it public.

Reply to
DougW

In article , Earle Horton wrote: #"Humming noise" is often a wheel bearing. I have heard propeller shafts #making what can be described as vibrations or humming, but only at higher #speeds than you mention. Take the shaft off and check for binding and play #in the joints. When u-joints start to go, binding may be apparent before Your the 2nd person to say take the shaft off first, so that's what I will do.

#play. Before buying a new propeller shaft, check with your local parts #store to see whether the joint is rebuildable. I called the same guy who provided me with axle shafts and CV joints for other repairs on the off chance he might not fall over laughing at me and he said he could get me a new aftermarket for $300. Not too bad vs. the $400+ at the dealerships. I haven't bought it yet, pending your advice, but my wallet thanked him profusely anyway.

My wallet thanks you and Mike Romain profusely as well.... =)

/herb

Reply to
Herb Leong

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