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How to change front axle on 91 chevy 4x4 - 2004 Chevrolet Silverado

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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  • 5 Answers

SOURCE: front axle - front drive shaft Toyota tacoma 1998 4x4

more than like have a broken axle shaft, un hook the rear drive shaft and put it in 4wd if it wont move then you know you got a broken axle shaft or spider gears broke in the pumpkin

Posted on Dec 09, 2008

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SOURCE: Front axle on 94 Chevy 1500 4x4

Well first you need a floor jack to put under bottom a-frame, then unhook shock from bottom a-frame or take off completely its up to you, unhook sway bar from bottom a- frame, and remove caliber off rotor and hang it off to the side, when all thats done you will have to pop the bottom ball joint, then you can put in new axel. Should not take more than 2 hours to do.

Posted on Feb 05, 2009

  • 3 Answers

SOURCE: 4x4 front axle wont disengage its electric

Re check your wiring it souds like you may have crossed some wires, or wired it where the switch is always on. The electrical componet you have is much different than the original vaccum type 4 wheel drive engagement.

Hope this helps

Posted on Apr 15, 2009

Molson02536
  • 3854 Answers

SOURCE: 2004 chevy 3500 dually 4X4 front axle not working

On the full size, the front actuator is electric, not vacuum.

When in 4wd mode, a switch on top of the transfer case conducts 12 volts out to the actuator. Wire #50 (brown) is the 12v feed, and it conducts to the light blue wire (#900) to the actuator.
When shifted out of 4wd, the switch opens up and no voltage goes to the actuator.

Check voltage at the connector for the front actuator (at the front differential - it looks like a large bullet that threads into the front diff.) If it has 12 volts, the actuator is the problem. If it does not have 12 volts, check the transfer case switch and the power feed to the transfer case.

I'll assume it is the actuator, if the plug to the actuator is getting 12 volts when in 4wd.
The way this actuator works, is it is a sealed chamber that gets heated by voltage. When it heats, the pin in the end swells and pushes a shift fork in the front differential. The shift fork engages a spline on the passenger side of the differential, and boom! you have 4WD.

GM offered an upgrade to this actuator that is a motor instead of a heated device. However, it requires a small harness addition, a spacer, and a new actuator. It is about a $150 to $200 option.

If I were you, I would buy a new heated actuator. They are available at most auto parts stores, and are about $90. They are also on eBay for about $55 plus shipping. These are very easy to change - just thread out the old one, and thread in a new one.

Good luck, That actuator is usually the problem 90% of time.

Posted on Dec 28, 2009

Suzman
  • 642 Answers

SOURCE: cv axle 4x4 diferencial

Make sure 2- wheel drive is selected.
Jack up the vehicle front and support on axle stands. Remove the wheel.
Remove the brake caliper. It bolts onto the hub carrier(aka knuckle) with 2 bolts from the vehicle side of the carrier so you cant see them without sticking your head into the wheel arch. Slide the caliper off the rotor and hub and hang it with a piece of wire inside the wheel arch. Dont let it hang on the pipe it is connected to. The caliper may be difficult to remove if the rotor has a ridge on its outer edge due to wear.
Remove ABS speed sensor(2 bolts to remove) behind the hub
Next comes the hub assembly. :

  • Shift on the fly:Remove 6 bolts on the cap then the cap itself. Next the snap ring/circlip and the shim behind it.(On the piece of shaft now visible) and then you can pull off the hub flange. Remove the screw on the lock washer and then the washer itself. Remove the hub nut.The hub assembly(with rotor) will now pull off the shaft. Remove inner bearing and oil seal.
  • Manual hub: Select transmission 2H and "Free" on the hub. and run the vehicle about 100 m/300 ft.Remove 6 bolts on the cap then the cap itself. Next the snap ring/circlip and the shim behind it. Remove body assembly.
Remove the bottom ball joint on the hub carrier.(Ball joint removal tool may be needed to free the ball joint. Dont go hammering it. That will damage the thread) Swing the carrier upwards and you should have just enough free space to pull the shaft from the hub carrier. If not remove the top balljoint as well. Remove the clamp/SS strip from the inner CV rubber boot. Pull the boot back on the shaft. Remove the circlip from inside the DOJ case. The shaft can now be pulled from the DOJ case.
Remember to preload the wheel bearing on reassembly. Tighten the hubnut to 29 N.m. then loosen fully. Tighten again by hand. Connect a spring scale to the wheel stud. Pulling on the scale in the direction of rotation should give a reading of 2-2.5 kg/4.4-5.5 lb(new bearing) or 1.2-1.8kg/2.6-4 lb(used bearing) when the rotor starts to move. If it does not, tighten the hub nut a littl and measure again. Repeat till the correct measurement is achieved. See diagram.

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Posted on Jul 21, 2010

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