Junkyard axles - JeepForum.com
 
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post #1 of 8 Old 12-10-2019, 08:05 AM Thread Starter
SoCalJeep4x4
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Junkyard axles

I need to either pull a front axle from the pick a part or spend $600 to get mine rebuilt plus I still need the cv axles also so around $750 total. I do not want to spend that much so it’s got to be the pick a part.

All the XJs with the hp Dana 30s that are in the jy all have front end damage from accidents so I’ll probably just pull a zj axle. Is there anything I should look out for when getting an axle from the jy? If I turn the yolk forwards and backwards should there be any play in it? Would it be a good idea to take the differential cover off and inspect inside it? What should I look for if I do?

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post #2 of 8 Old 12-10-2019, 08:08 AM
LordHobbit
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make sure it has the same gear ratio or you'll have to rebuild it anyway

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post #3 of 8 Old 12-10-2019, 10:05 AM Thread Starter
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Thanks I am aware that I need 3.73 gearing anything else I should be aware of?
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post #4 of 8 Old 12-10-2019, 10:15 AM
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Make sure the JY axle has the same drive shaft yoke pinion as yours (CV or U-joint). Try to get an axle from the same ZJ sub-generation (1993-1995, or 1996-1998) as yours, as the front axle pinion length changed at or near the facelift year and may affect the front drive shaft length. Can't hurt to measure yours beforehand and check against the junkyard unit.

Can't hurt to pop the cover and take a look for chipped teeth or other damage. You'll want to put new gear oil in it anyway.

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post #5 of 8 Old 12-10-2019, 12:51 PM
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Personally I wouldn’t waste my time with a LPD30 from a ZJ. I have never seen one (at a JY) that isn’t leaking from every seal and most are growling from shot bearings.

HPD30s seem to hold up much better.

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post #6 of 8 Old 12-10-2019, 01:20 PM
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Quote:
Originally Posted by 1996maroonzjf View Post
Personally I wouldn’t waste my time with a LPD30 from a ZJ. I have never seen one (at a JY) that isn’t leaking from every seal and most are growling from shot bearings.

HPD30s seem to hold up much better.
HPD30s are good axles, but does the ZJ driveline have adequate clearance to run a high-pinion axle at stock height? Not to mention the chances of finding a 3.73 HPD30 are slim to none.

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post #7 of 8 Old 12-10-2019, 11:40 PM
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You can clear an hp30 shaft with stock or even slightly lowered suspension on the ZJ.

Finding 3.73s in a yard isn't likely to happen, but plenty of people will sell you a bolt in hp30 with 3.73s.


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post #8 of 8 Old 12-11-2019, 08:50 AM Thread Starter
SoCalJeep4x4
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Thanks for all the info. I am in the middle of doing a 4” RC long arm lift so clearance shouldn’t be an issue. If I could find a hpd30 at a local pick and pull that would be ideal. I have been looking into cL as well but haven’t seen anything worthwhile in the last couple of months. I am dying to get out and do some wheelin so I’m just looking for the cheapest option to get me up and running until I can find a good hpd30.
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