I have a GMC Sierra 1500 model year 2003.Question:  I am looking for a few specific parts for the front differential on my truck, I have done some research and found that on of the parts is called a "washer, front drive axle shifter lock" it looks like a washer with two ears on it and there another washer that sits on top of that one and I need both of those and an axle sealAnswer:   We have the parts you need, for your Sierra, order the following:

• Part Number 12479373 washer your cost $4.00

• Part Number 26066886 washer your cost $4.25 plus S&H.

To order call 888-824-2012 ask for Connie or Scott they can help you.