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I have a 2008 jk4.5 lift with 36 inch tires. Recently re-geared with 4.88. I drive it pretty hard for hunting season, and when it's in 4x4 I can hear what I think is the u- joints on the front drive shaft, cracking and popping. What can I do to eliminate this. Better drive shafts and u joints are a must I would say. I know it's the alignment of the front shaft. I want something tough and durable for the way I drive it. Any hints.
 

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A aftermarket shaft still uses a u-joint that needs to be aligned with the differential.
More so with a aftermarket DS.
Do you have adjustable control arms ?

I have a Adams front shaft. Retains the factory flange but a inexpensive option.

Like mike said ... Keep close eye on the cv end itself for grease loss.

Enter Pluke
 

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Right. You've got too much lift for the stock shafts--the angle is killing them. You should get under there and look to see if they're spitting grease. If they are, it's time to find something else to drive until you can get them replaced.

Tom Woods Review well: Tom Wood's Custom Drive Shafts - Tom Woods Custom Drive Shafts Custom Driveshafts Specialist. I've also heard good things about J.E. Reel.
Yup. A good inspection now may prevent being stranded later on.

Don't forget Adams Drive Shafts.
 

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ya. youre best bet is to replace both front and rear drive shafts with aftermarket ones. cv double cardan.

you will need a minimum of adjustable front lowers control arms and adjustable rear upper control arms.

ideally, you will want all 8 to be adjustable.
 
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