new boots with repacked bearings or all new axle ?

what's the consensus here
cost quoted by a well known local shop which specializes in isuzu and other 4-wd vehicles
to replace boots (inner/outer) plus repack bearings, $800-900
to replace entire front axle (rebuilt) with all new parts, $1200-1300
how do you decide what is best?
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Joe Isuzu wrote:

WOW! Are Isuzu parts that expensive? Your shops labor fees are very suspect unless there is something unusual about the Isuzu that would add that much labor. I had the 1/2 shafts replaced with new ones on my 1993 Nissan for $300 total, parts and labor.
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in and Dman answered with his usually drivel in the following manner!

Yeah well here in Indiana that amount $800-$900 sounds about right...well its around $700-$750.
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If the CV joints are not damaged or making noises (like clicking in sharp turns) then just clean, repack and replace the boots. ALL the boots, not just the one(s) that are damaged.
First... CV joints are very robust and generally don't wear out unless abused... like operating for fairly long time with damaged boot allowing grease to sling out at highway speeds and dirt/sand to get in. Or, when using huge tires, lifted suspension and high horsepower. Your didn't say if your vehicle has any such mods... but I doubt you'd have need to ask this question if it had! Also, it is fairly easy to tell when they are worn out... either by clicking noises or examination when disassembled for cleaning.
Second... you didn't say what model/year Trooper you had... vehicles w/out full-time 4WD turn the front axles and pass torque a small fraction of the time, only when operating in 4WD, and usually at low speeds. So the front joints are basically good-as-new.
BuddyWh
On 3 May 2004 12:42:44 -0700, snipped-for-privacy@mailinator.com (Joe Isuzu) wrote:

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BuddyWh wrote:

Not sure about the Trooper but thats not how the Amigo and Rodeo's are. They are part time 4WD but with permanently locked hubs. With the transfer case disengaged, the tires still cause the axles and CV joints to turn. A bad design that many have remedied by replacing the hubs with manual hubs to allow unlocking.
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wrote:

Turning the front differential too? all that extra mechanical drag must be a drain on gas mileage.
But even this way at least it's not being asked to pass torque with the transfer case disengaged although the grease will be flung out at highway speeds.
My '94 Rodeo isn't set up like that, it has auto-locking hubs. While many swap those for manual lockers out of reliability concerns, I've had good luck so far at 120K miles.
BuddyW
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BuddyWh wrote:

Isuzu stated they went with the permanently locked hubs in the late 90's because of those reliability issues with the auto locking hubs. The general public wants pushbutton 4wd (I don't!). My '93 nissan 4x4 truck was sold with 140K without trouble on the auto locking hubs. I had an 89 trooper where the auto locking hubs disintegrated.
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