Hi,
If you are referring to the round portion, that is a dust cover that is there to help keep dirt away from the axle-bearing seal on the transmission. I would think it should have already been installed on the new one.
I just looked at Rockauto and none of their's have it. The OEM part number for the left side is 25958185. If you look that up, they all have them. I don't believe they are removable.
Have you tried contacting Rockauto to see if they have a solution? It will work the way it is, but you may end up with a bearing seal leaking sooner than later.
Let me know.
Joe
SPONSORED LINKS
Wednesday, May 24th, 2023 AT 9:36 PM