Intermediate axle and CV axle failing... installed JBA's UCA

tomasnc · **Posted:** Sun Feb 21, 2016 2:23 pm

I installed JBA's UCA on my 05 CRD and have had two intermediate axle shafts and cv axles.

After the first install I noticed a vibration but put off looking at the problem. After seeing the wear I guessed I has installed something wrong or it was just a worn 10 jeep with 155,000 miles on it.
Well, I changed this axle and cv out and in less than three weeks I am having the same problem.

Is the new geometry causing this failure?

Thanks,

Tom

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flash7210 · **Posted:** Sun Feb 21, 2016 3:07 pm

Is it always the passenger side CV axles failing?

When you replace front CV axles make sure you get parts for a CRD or 4cyl liberty.

tomasnc · **Posted:** Sun Feb 21, 2016 4:06 pm

flash7210 wrote:

Is it always the passenger side CV axles failing?

When you replace front CV axles make sure you get parts for a CRD or 4cyl liberty.

Flash, Yes on the passenger side failure. The drivers side is rock solid. No wear at all.

When I installed the JBA upper control arms I kept the factory axle. Did I screw up?
Marlins web site mentions his modified axle. With only a 1.5" OME lift I was under the impression that I could keep the axle factory.
With two failures something is wrong

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olypopper · **Posted:** Sun Feb 21, 2016 4:38 pm

I literally just pulled the front diff to correct the same issue with my 05 CRD. Looking at my diff while it's on the bench I see a worn bushing inside the axle tube, have you replaced yours? When you assembled the two shafts together, did you apply a Moly type extreme pressure grease? If you don't, you'll be replacing shafts often.

I will try and post pictures later today.

tomasnc · **Posted:** Sun Feb 21, 2016 4:43 pm

olypopper wrote:

I literally just pulled the front diff to correct the same issue with my 05 CRD. Looking at my diff while it's on the bench I see a worn bushing inside the axle tube, have you replaced yours? When you assembled the two shafts together, did you apply a Moly type extreme pressure grease? If you don't, you'll be replacing shafts often.

I will try and post pictures later today.

To have driven 140,000 on a factory suspension and never had any grease in the location you reference and then lift and say grease is the determining factory I say WRONG. Thanks for your opinion.

olypopper · **Posted:** Sun Feb 21, 2016 4:49 pm

Best of luck to you.

Intermediate axle and CV axle failing... installed JBA's UCA

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