Checking Fluid Level: RWD
WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 1990 Mazda RX-7, 1990 Mazda Protege, 1990 Mazda MX-6, 1990 Mazda B2600i, and 1990 Mazda B2200. However, it is still accessible from the selected car via links, so may be relevant.
Fluid should be up to bottom of fill hole on side of case. B2600i models have 2 drain and 2 fill plugs in transmission case. Fluid should be up to bottom of rear fill hole on side of case. B2600i transfer case has separate drain and fill plugs.