Mainshaft and Gears

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

Check the items listed as shown. If necessary, replace them with new ones.

Damage, peeling, dent, uneven wear, bending, and other non-standard conditions of the mainshaft.
Excessive wear, damage, peeling, and other non-standard conditions of the mainshaft gears.

Fig 1: Checking Mainshaft And Gears
Courtesy of NISSAN MOTOR CO., U.S.A.