Transaxle Side

WARNING: This page is about a different car, the 2004 Nissan Altima, 2003 Nissan Altima, and 2002 Nissan Altima. However, it is still accessible from the selected car via links, so may be relevant.

Drive a new oil seal into transaxle case.
Set Tool along the inner circumference of oil seal.

Fig 1: Setting Tool Along Inner Circumference Of Oil Seal
Courtesy of NISSAN MOTOR CO., U.S.A.
Insert drive shaft into transaxle. Be sure to properly align the serrations and then withdraw Tool.
Push drive shaft, then press-fit circular clip on the drive shaft into circular clip groove of side gear.
After its insertion, try to pull the flange out of the slide joint by hand. If it pulls out, the circular clip is not properly meshed with the side gear.

Fig 2: Pushing Drive Shaft
Courtesy of NISSAN MOTOR CO., U.S.A.