Oil Seal (Transmission) Replacement

WARNING: This page is about a different car, the 2005 Mazda MX-5 Miata. However, it is still accessible from the selected car via links, so may be relevant.

Clean the transmission exterior thoroughly using a steam cleaner or cleaning solvent.
Drain the ATF. (See ATF LEVEL INSPECTION .)
Remove the exhaust pipe. (See EXHAUST SYSTEM REMOVAL/INSTALLATION [BP] .)
Remove the propeller shaft. (See PROPELLER SHAFT REMOVAL/INSTALLATION .)
Remove the oil seal using the SST.
Apply ATF to a new oil seal lip.

Fig 1: Removing Oil Seal Using SST
Courtesy of MAZDA MOTORS CORP.
Install the oil seal to the position shown in the figure within dimension A as follows using the convex part of the SST.
Dimension A
1. 6.2-6.8 mm {0.25-0.26 in}
Fig 2: Installing Oil Seal Using SST
Courtesy of MAZDA MOTORS CORP.
Install the retainer to dimension B position using the concave part of the SST.
Dimension B
1. 0.7-1.3 mm {0.03-0.05 in}
Install the propeller shaft. (See PROPELLER SHAFT REMOVAL/INSTALLATION .)
Install the exhaust pipe. (See EXHAUST SYSTEM REMOVAL/INSTALLATION [BP] .)
Add ATF to the specified level. (See ATF LEVEL INSPECTION .)
Carry out the line pressure test. (See LINE PRESSURE TEST .)
Carry out the road test. (See ROAD TEST .)

Fig 3: Installing Retainer Using SST
Courtesy of MAZDA MOTORS CORP.