I am replacing the white gear in the passenger seat recliner transmission box of my 1996 328IC. The shaft where the new gear goes has a black plastic piece that fits on the shaft and a cap that is larger than the opening in the center of the gear. My question is how do I fit the new gear onto the shaft. Thanks for your help.
Use a small socket wrench socket that matches the size of the gear and tap it on gently. It is supposed to be snug