sleeve for AW4 front pump shaft

hey everybody

Im looking to replace the front pump seal in my AW4 soon. I saw a while back ago that somebody had a sleeve which was very thin and slid over the shaft for the front pump. anybody got a part number i could look this up with.

I dont want to replace the seal only to have a small groove worn in the shaft, and it still leak

The name would be "speede-sleeve",dont know about the application though.