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Posted on Jan 07, 2018
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I need to remove the front brake rotors from my 94 Isuzu trooper to either turn or replace them. Is this a complex project requiring special tools to remove or re-install due to the auto 4wd hubs? I have removed, re-packed and replaced rear wheel bearings before, but never fronts or messed with 4wd hubs.

  • toolking58 Feb 24, 2010

    The hubs for the 4wd are outboard of the rotor, so they must be removed as an assembly, exposing the wheel bearings, then the hub can be removed from the rotor. I am extremely certain that the rotors will not come off without removing the hubs. Mostly I don't want to get into this if it turns out I need a special wrench to remove or replace part of it, or reassembly of the hub will require special knowledge. I have seen some things on the internet talking about cams inside the 4wd hub. Seems like it is probably not too tough, but just want to know before I take something apart that I cannot finish.

  • Anonymous May 11, 2010

    From looking at parts, the rotors should come off fairly easily. Remove the wheel, Pull the brake caliper out of the way and the rotor should come off. no bearings to mess with.

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1 Answer

alibaba69

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  • Posted on Jan 07, 2018
alibaba69
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Joined: Jan 13, 2009
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No, but I would replace the rotors. Turning them usually winds up getting them warped as soon as they heat up and/or you hit a puddle of water..also, you will need a torque wrench and standard automotive tools, Jack and stands and a vice..

1 Place the Transfer shift in the 2H position.
Raise and support the front of the vehicle safely on jackstands.
2 Remove the wheel and tire assembly.
3 Loosen the hub to rotor retainer bolts.
4 Remove the brake caliper mounting bolts and carefully remove the caliper (along with the brake pads) from the rotor. Do not disconnect the brake line. 5 Secure the caliper out of the way with the flexible line still connected.

Once the hub/rotor is removed from the vehicle the wheel bearings may be cleaned and repacked or the bearings and races may be replaced. For more information, please refer to the wheel bearing procedures in General Information & Maintenance of this manual.

6 Remove the hub nut using hub wrench J-29020-A or equivalent.
7 Remove the hub cap assembly retainer bolts.
8 Remove the spindle nut, washers, and other components. Remove the hub/rotor, being careful not to drop the outer wheel bearings. As the hub/rotor is pulled forward, the outer wheel bearings will often fall forward.
9 Once the hub/rotor is removed, remove the retainer bolts securing the rotor and hub together. Inspect the hub and replace if needed.

To install:
1 With the rotor secured in a vise, attach the wheel hub to the rotor using the retainer bolts. Tighten the bolts to 47-58 ft. lbs. (61-75 Nm). Apply 2.12 oz. (60 gm) of grease to the hub before installing.
2 Carefully install the wheel hub/rotor over the spindle.
3 Install the bearings washers and other components. 4 Position the lock washer so the hub cap assembly bolt holes line up properly.
5 Install the spindle washer and nut and secure using hub wrench J-29020-A or equivalent. Preload the bearing to 3.31 lbs. (1.5 kg).
6 Install the inner cam and any shims. Install the hub cap assembly and secure in place with retainer bolts. 7 Tighten grade M8 bolts to 17-22 ft. lbs. (22-29 Nm), tighten grade M10 bolts to 40-47 ft. lbs. (52-61 Nm).
8 Install the brake caliper.
9 Install the tire and wheel assembly.
10 Remove the supports and carefully lower the vehicle.

5 Related Answers

Anonymous

  • 21 Answers
  • Posted on Jul 31, 2008

SOURCE: I need to know how

To do the front disks - take off the auto hub housing,undo the 6 bolts in a ring don't worry, nothing will ping out. Once the housing is off, clear away the grease from the end of the shaft, put a little flat screw driver in, and look for the circlip - it's a *beep* to get out.
hope i helped you plz rate me solution thanks

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Anonymous

  • 702 Answers
  • Posted on Aug 08, 2008

SOURCE: CAN I USE A 94

Shouldn't be a problem, they were essentially the same truck. Isuzu didn't change anything until 01 I believe.

Anonymous

  • 86 Answers
  • Posted on Dec 05, 2008

SOURCE: 1993 Isuzu Trooper auto locking hubs not engaging

Just have your auto - locking hub cleaned and use your 4wd more often, it get stock usually for non usage. dont use grease after cleaning, use oil or thick silicone oil.

Anonymous

  • 2 Answers
  • Posted on Jan 09, 2009

SOURCE: fuel filter change out in 2002 isuzu trooper

easy under the driver side need fuel tool from auto store. 30 min or srew driver push the clips in and pull. carefull lots of gas...

motor1258

Mike Butler

  • 6674 Answers
  • Posted on Apr 05, 2009

SOURCE: wheel bearing assembly 2004 dodge ram 1500

Hub & bearing should be one assy, is that what your looking at?
3 bolts behind hub, to remove, done?

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How do u remove hubs on a 1992 Isuzu big horn

TO DO WHAT? not even the smallest hint on job or failure.>?
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our usa book lists it as trooper only.
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just B or B then A off? if you had b off, you'd see what?, a big nut.
that is locked to spindle shaft.
ill guess? wheel bearings are bad? (just in hub not spindle bearings bad... no matter this is first.)
so you do what. ? here are the steps.

that part"B" must be off first, see the bolts holding it, ?
B = auto locking hubs. or hub axle lockers.
26005769-b5pjo3cin0lhc1b54v4xlnuy-4-0.jpg you can see the caliber must come off, so, do so and tie them up.
  1. "Place the Transfer shift in the 2H position.
  2. Raise and support the front of the vehicle safely on jackstands. (rear tires chocked, and hand brake set hard)
  3. Remove the wheel and tire assembly.
  4. Loosen the hub to rotor retainer bolts.
  5. Remove the brake caliper mounting bolts and carefully remove the caliper (along with the brake pads) from the rotor. Do not disconnect the brake line. Secure the caliper out of the way with the flexible line still connected.
  6. Remove the hub nut using hub wrench J-29020-A or equivalent. ( special tool)
  7. Remove the hub cap assembly retainer bolts. Remove the spindle nut, washers, and other components. Remove the hub/rotor, being careful not to drop the outer wheel bearings. As the hub/rotor is pulled forward, the outer wheel bearings will often fall forward.
  8. Once the hub/rotor is removed, remove the retainer bolts securing the rotor and hub together. Inspect the hub and replace if needed."
  9. end removal. install is next... (alldata.com covers this)
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It's probably a nut that has slots milled on the outer diameter of it. You need a special socket that has tangs on it that will slip into those slots. You can probably rent one at your nearest Autozone. They usually make you leave a deposit for their tools, and return the money to you when you return the tool.
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Remove the six bolts around the center of the hub and pry off the grease cover.

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Behind is a large axle locknut that requires a special tool to remove. It has two small holes to grip with. Unscrew it and you will be able to remove the outer bearing, then slide the rotor off the spindle/axle.

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