into 4 wheel drive feels like the brakes need to be replaced

Hi,

Rear brakes aren't too hard to replace. You can expect rear brakes to last approx 30K miles, but that is based on driver habits and terrain.

First, here is a link that you may find helpful. It explains how, in general, the job is done. You can use it as a guide.

https://www.2carpros.com/articles/how-to-replace-rear-brake-pads-and-rotors

Here are the directions specific to your vehicle. The attached pics correlate with the directions.

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2004 Isuzu Truck Rodeo 4WD V6-3.2L
Rear
Vehicle Brakes and Traction Control Disc Brake System Brake Pad Service and Repair Procedures Rear
REAR

pic 1


pic 2



Removal

Note: If a squealing noise occurs from the rear brake while driving, check the pad wear indicator plate. If the indicator plate contacts the rotor, the disc pad assembly should be replaced.

^ Draw out two-thirds of the brake fluid from the reservoir.
^ Raise the vehicle and support it with suitable safety stands.
1. Remove wheel and tire assembly.


pic 3


2. Remove lock bolt (1)
3. Rotate caliper assembly and support the caliper assembly so that the brake hose is not stretched or damaged.
4. Remove pad assembly with shim.
5. Remove clip.

Installation


pic 4


1. Install clip (2).


pic 5


pic 6


2. Apply special grease (approximately 0.2 g) to both contacting surfaces of the inner shims. Wipe off extruded grease after installing. Install pad assembly with shim.


pic 7


3. Carefully use adjustable pliers to bottom the piston into the caliper bore. Do not pull or twist the flex hose or damage will occur.
4. Install lock bolt (5) and tighten the bolt to the specified torque.
Torque: 44 Nm (32 ft. lbs.)
5. Install wheel and tire assembly.


pic 8


6. Pump the brake pedal several times to make sure that the pedal is firm. Check the brake fluid level in the reservoir after pumping the brakes.

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Brake Rotor Replacement

When the brake caliper is removed, you will need to also remove the caliper mount shown in pic 4. Once that is removed, the brake rotor can be replaced.

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I hope this helps. Let me know if you have other questions,

Take care and God Bless,

Joe