When shifting transmission into drive there is a loud grinding noise and back tire wobbles

Can you get a recording of this? I am not sure what you mean by the back tire wobbles when this happens.

If the noise is coming from the rear end, we need to make sure the drive shaft is spinning. If it is and you are not getting movement plus there is a grinding then we need to remove the rear cover and look for metal.

Let's remove the cover which can be done on the ground and drain the fluid and make sure there is no metal. Let me know what you fin and we can go from there. Thanks

Yes drive shaft spins doesn't make noise in reverse.

Good morning,

This sounds like a broken axle in the differential itself.

You need to remove the cover and remove the axles and inspect for damage.

I attached the procedure for you along with a picture.

https://www.2carpros.com/articles/replace-cv-axle

Roy

Rear Axle Shaft Replacement (9.75 Inch Axle)

Removal Procedure
1. Release the park brake.
2. Raise the vehicle. Refer to Vehicle Lifting.
3. Remove the tire and wheel assembly.
4. Remove the rear steering gear assembly.
5. Remove the steering knuckle assembly.

6. Remove the lock clip from the axle shaft end. The lock clip is spring loaded and fits securely in the axle shaft slot and may need to be push off the shaft end with a screw driver or related tool. Pushing the axle shaft inwards towards the gears my help in removal of the lock clip.


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7. Remove the axle shaft.

Important: When removing the axle shaft do not rotate the shaft. Rotating the shaft will cause the gears to move. Misalignment of the gears will make the assembly difficult.

It's my rear not front doing it.

Okay, as it states it is for the rear axle.

What size rear do you have? Are they solid axles?

Roy

3/4 ton.

Okay, that is a 2500, not a 1500 that you listed.

These axles are more common for failing.

Roy

Rear Axle Shaft and/or Gasket Replacement

Removal Procedure


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1. Remove the flange bolts.
2. Lightly tap the axle shaft with a soft-faced hammer in order to loosen the shaft.
3. Grip the rib on the axle shaft flange with a locking pliers. Twist the axle shaft flange in order to start the axle shaft removal.
4. Remove the axle shaft from the tube.
5. Remove the gasket.
6. Clean the axle shaft flange and the outside face of the hub assembly.

Installation Procedure


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1. Install the gasket onto the axle shaft.
2. Install the gasket and the axle shaft into the axle tube.
1. Ensure the shaft splines mesh into the differential side gear.
2. Align the holes in the axle flange and the gasket with the holes in the hub.

3. Install the axle flange bolts.
Tighten
For the 10.5 inch axle, tighten the rear axle flange bolts to 156 Nm (115 lb ft).
For the 11.5 inch axle, tighten the rear axle flange bolts to 200 Nm (148 lb ft).

Notice: Refer to Fastener Notice in Service Precautions.

4. Inspect and add axle lubricant to the axle housing, if necessary.

No, it is a 1500 hd with 6.0 4wd.

2006.

Can I have the complete VIN number?

Roy

See.

I need the complete VIN number from the drivers door or from the tag on the dash.

Roy

There are several options for the differential.

This is another one:

Roy

Rear Axle Shaft Replacement (8.6, 9.5/9.5LD Inch Axles)

Removal Procedure


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1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle.
2. Remove the tire and wheel assembly.
3. Remove the brake caliper.
4. Remove the rear cover and the gasket.
5. Remove the pinion shaft locking bolt.


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6. On axles without a locking differential, remove the pinion shaft.


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7. On axles with a locking differential, remove the shaft part way. Rotate the case until the pinion shaft touches the housing.


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8. On axles with a locking differential, use a screwdriver, or a similar tool, in order to enter the differential case and rotate the lock (1) until the lock aligns with the thrust block (2).


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9. Push the flange of the axle shaft (1) toward the differential.
10. Remove the C-lock (4) from the button end of the axle shaft (1).
11. Remove the axle shaft (1) from the housing (5).

Important: When removing the axle shaft, do not rotate the shaft. Rotating the shaft will misalign the gears. Misaligning the gears will make the assembly difficult.