Unit Overhaul

The sealant used to seal the transaxle case halves is Loctite 51817 or equivalent. The sealant used for the bearing end plate cover is Loctite 18718 or equivalent.
The components that are left in the gear cases when the gear train is pulled out are the:
Axle shaft seals.
Output bearing race and retainer.
Input bearing and sleeve.
Differential bearing cones.
Shifter rail bushings.
Shifter shafts.
Shifter shaft seals.
Shifter shaft bushings.
Rear bearing oil feed trough.

AXLE SHAFT SEALS





Removal
1. Insert a flat blade pry tool at outer edge of axle shaft seal.
2. Tap on the pry tool with a small hammer and remove axle shaft seal.





Installation
1. Clean axle shaft seal bore of any excess sealant.
2. Align axle shaft seal with axle shaft seal bore.
3. Install axle seal on tool MD998812, MD998826 or equivalents and insert into axle shaft seal bore.
4. Tap seal into position.

OUTPUT BEARING

Removal





1. Note the position of the output shaft bearing. The bearing is not identical end to end. Remove caged roller bearing from output bearing race.





2. Remove screws at output bearing retainer strap.





3. Install tool MB995031, MB995052 or equivalents. Tighten tool to output bearing race.





Installation
1. Line up putput bearing race to race bore.
2. Insert tool MB990933, MB990938 or equivalents into output bearing race. Tap race into bore. Position bearing retaining strap.
Tighten bolts to 11 Nm (9.6 ft. lbs.).

INPUT BEARING AND SLEEVE





NOTE: The input bearing is a one-piece bearing and sleeve unit. The sleeve is the slide point for the clutch release bearing and lever.





Removal
1. Install tool MB990927, MB990938 or equivalents over input bearing on the gear case side of the transaxle clutch housing.
2. Tap the input bearing out of the housing.

Installation





1. Apply coating of Loctite sealant on bearing outer diameter. Position sleeve and bearing assembly at input bearing bore.
2. Install tool MB995033 or equivalent over input bearing.





3. Using the spacer tool and shop press, install input bearing into bore until it is fully seated.

DIFFERENTIAL BEARING CUPS

Removal





1. Install MB995048 or equivalent into the differential bearing cup.





2. Install the tool cup over the tool.
3. Tighten the tool until the race is removed from the case.

Installation
1. Position the bearing cup into the case.
2. Install the bearing cup onto MB990933 or equivalent.
3. Using MB990933, MB990938 or equivalents driver, install differential bearing cup into the transaxle case.

SHIFTER RAIL BUSHINGS





Removal
1. Thread tool MB995040 or equivalent into shifter rail bushing.
2. Install MB995031 or equivalent onto tool.
3. Remove bushing using slide hammer and tool assembly.

Installation
1. Line up replacement bushing in bore.
2. Using tool MD998343 or equivalent, tap bushing into bore until flush with the chamfer in the case.

SHIFTER SHAFT SEALS

NOTE: It is not necessary to remove the shifter shafts from the transaxle to service the shifter shaft seals.

Removal
1. Using a pick tool, pry up on the shifter shaft seal and remove seal from bore.

Installation
1. Position new shifter shaft seal in bore.
2. Install shifter shaft seal into bore using an appropriate size deep well socket.

SHIFTER SELECTOR SHAFT

Removal
1. With the transaxle disassembled, remove the selector shaft by pushing on the shaft from the outside and pulling shaft out from the inside.

Installation
Reverse removal procedure to install selector shaft.

SHIFTER CROSSOVER SHAFT





Removal
1. With the transaxle disassembled, remove the crossover shaft seal.
2. Using snap ring pliers, remove the snap ring at the crossover shaft bore.
3. Push the crossover shaft in the case and remove the crossover assembly.

Installation
Reverse removal procedure to install crossover shaft.

SHIFTER SELECTOR SHAFT BUSHING





Removal
1. Thread MB995040 or equivalent into bushing.
2. Install MB995031 or equivalent onto tool and remove bushing using slide hammer.





Installation
1. Position replacement bushing over selector shaft bore.
2. Using an appropriate size deep well socket, install bushing in selector shaft bore.

SHIFTER CROSSOVER SHAFT BUSHING





Removal
1. Install MB995031 or equivalent through the crossover bushing.
2. Thread nut and washer onto MB995031 or equivalent.
3. Using the MB995031 or equivalent, remove the crossover shaft bushing.

Installation
1. Position the replacement crossover shaft bushing over the crossover shaft bushing bore.
2. Using an appropriate size deep well socket, install the crossover shaft bushing into the bushing bore.

REAR BEARING OIL FEED TROUGH





Removal

NOTE: The bearing oil feed trough is retained in the case by a pin that is molded into the case and clips that are part of the trough.

1. Using light plier pressure, squeeze the clips together at the rear of the trough.
2. Slide the trough over the retaining pin that locates the trough in the case.

Installation
Reverse removal procedure to install oil feed trough.