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 Post subject: Jeep Liberty CRD CV Joint Axles - Things you need to know!
PostPosted: Sun Oct 22, 2017 3:10 pm 
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Please be aware of the difference between gas and diesel models front CV axle lengths (read below)!
Some members have complained or stated they had issues after replacing their front CV axle assemblies with aftermarket and / or rebuilt units.
Be sure you get ones for a CRD Jeep Liberty or an earlier model Liberty that came with the 4 cyl. gas engine. All 3.7 gas Liberty's use different length CV axle shaft lengths! :roll:

[*]The 27 spline Dana 30a, also know by Chrysler as the 186FIA, has always been the only front axle available in the Jeep Liberty. It's an IFS axle with an aluminum housing as indicated by the 'FI' and 'A'/'a' respectively. Essentially, it's an aluminum version of the Dana 30 with a longer pinion shaft. Unfortunately, the light weight aluminum construction makes it weaker than the D30 and the longer pinion shaft means pinion related D30 parts won't fit it. The D30a requires a 1-1/8" socket to remove and install the pinion nut.

CRD Liberty's have a different front cradle that lowers and leftward shifts the differential to provide more clearance for the diesel engine. The lowering results in better half-shaft constant velocity joint angles but too little clearance for a differential collar. The leftward shift requires different length half-shafts than those used in the gas Liberty. Due to the shorter left side half shaft CRD models cannot be lifted as high as a gas model as their CV joints begin to bind.


[* from Wikibooks]

:SOMBRERO:

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 Post subject: Re: Jeep Liberty CRD CV Joint Axles - Things you need to kno
PostPosted: Wed Feb 06, 2019 4:02 pm 
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Since we are spreading info I can actually help a little here. Jeepin by Al or JBA sells modified axles to allow greater lift. As mentioned above, the driver’s side is the worst. I don’t know how far you could raise the passenger side if you swap just the driver’s side.

https://jeepinbyal.com/liberty-2002-200 ... e-crd.html


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 Post subject: Re: Jeep Liberty CRD CV Joint Axles - Things you need to kno
PostPosted: Wed Feb 06, 2019 10:44 pm 
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Does anyone know how to modify these axles? Can we DIY what they are selling? It talks about taking 1/2 of the inner face. It also mentions an upgraded "cage". I have no idea what this means.

I found this but it still isn't clear to me:
viewtopic.php?f=3&t=40739


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 Post subject: Re: Jeep Liberty CRD CV Joint Axles - Things you need to kno
PostPosted: Wed Feb 06, 2019 11:41 pm 
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Refers to modifying the CV joints themselves to allow more flex without binding. Not really a DIY thing unless you are a professional machinist and have the equipment and experience with the mod.

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 Post subject: Re: Jeep Liberty CRD CV Joint Axles - Things you need to kno
PostPosted: Sun Feb 17, 2019 8:21 pm 
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Can you explain what is done?


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 Post subject: Re: Jeep Liberty CRD CV Joint Axles - Things you need to kno
PostPosted: Sat Feb 23, 2019 8:59 am 
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I can't. I know the concept and have seen this done with other front IFS rigs, but it's not something I could explain in terms that would instruct someone on how to do it themselves. I suspect the process of figuring it out myself would surely be more expensive in the long run than buying them from JBA.

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Sasquatch
DSS Turbo
CAT-elimntr
Weeks Stg1&2 EGRfix
PV-200
BLING
vent gauges

IDParts
head
cams
rockers
Timing set
ARP studs
eTn1 GX2123 5v GPs

YETI Custom Tune
Flowmaster 8325508
Carter P76611M
GM 12611872
Hayden 2986
GM 15976889
PATC Custom Billet
2010 Ram Hemi Trans
Sonnax 44957
Transgo kit
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 Post subject: Re: Jeep Liberty CRD CV Joint Axles - Things you need to kno
PostPosted: Sun Feb 24, 2019 4:07 pm 
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GordnadoCRD wrote:
I can't. I know the concept and have seen this done with other front IFS rigs, but it's not something I could explain in terms that would instruct someone on how to do it themselves. I suspect the process of figuring it out myself would surely be more expensive in the long run than buying them from JBA.



X2 By the time you learn how to machine the joints to allow for higher lifts, you could have earned more money doing something else than what the JBA axles would cost.

Plus, there is a learning curve here; the chances of anyone doing something wrong because they are inexperienced and having an expensive breakdown as a result is rather high.


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