Case And Extension

WARNING: This page is about a different variant/trim than selected.

Remove drain plug and gasket from transmission case and then drain gear oil.
Remove filler plug and gasket from transmission case.
Remove rear extension upper cover with the following procedure.
1. Remove rear extension upper cover mounting bolts while holding rear extension upper cover.
2. Remove rear extension upper cover and rear extension upper cover gasket from rear extension.
Remove check select spring and check ball from rear extension.

Fig 1: Identifying Check Select Spring And Check Ball
Courtesy of NISSAN NORTH AMERICA, INC.

CAUTION:
Never drop check ball.
Remove control rod with the following procedure.
1. Remove control rod boot from control rod.
2. Remove boot (1) from control rod as shown in the figure below.
  
  Fig 2: Locating Control Rod Retaining Pin
  Courtesy of NISSAN NORTH AMERICA, INC.
3. Remove retaining pin ( →) from control rod using a pin punch [Commercial service tool] and then remove control rod from striking rod.
4. Remove boot from striking rod oil seal.
Remove park/neutral position (PNP) switch and plunger from rear extension.
Remove back-up lamp switch from rear extension.
Remove mounting bolts ( →) and then remove control bracket from rear extension.

Fig 3: Locating Control Bracket Mounting Bolts
Courtesy of NISSAN NORTH AMERICA, INC.
Remove return spring plungers (1), return springs (2), and return spring plugs (3) from rear extension.

Fig 4: Identifying Return Spring Plungers, Return Springs And Return Spring Plugs
Courtesy of NISSAN NORTH AMERICA, INC.

CAUTION:
Return spring and return spring plunger have different lengths for right and left sides. Identify right and left side and then store.
Remove rear oil seal from rear extension using the puller [SST: KV381054S0 (J-34286)].

Fig 5: Removing Rear Oil Seal From Rear Extension Using Puller
Courtesy of NISSAN NORTH AMERICA, INC.

CAUTION:
Never damage rear extension.
Remove brackets from rear extension.
Remove control lever housing from rear extension.
CAUTION:
Never hold control lever housing to prevent the bushing of control lever housing from deformation when moving transmission assembly.
Remove rear extension from adapter plate using a soft hammer.
CAUTION:
Never drop reverse idler thrust washer.
Remove striking rod oil seal from rear extension.
CAUTION:
Never damage rear extension.
Remove dust cover from rear extension.
CAUTION:
Never damage rear extension.
Remove oil gutter with the following procedure.
1. Remove oil gutter from rear extension.
2. Remove cap from oil gutter.
Remove reverse idler shaft assembly ( →) from adapter plate.

Fig 6: Locating Reverse Idler Shaft Assembly
Courtesy of NISSAN NORTH AMERICA, INC.
Remove front cover with the following procedure.
1. Remove mounting bolts ( →) and sealing bolts (1).
  
  Fig 7: Locating Transmission Case Mounting Bolts
  Courtesy of NISSAN NORTH AMERICA, INC.
2. Remove front cover and front cover gasket from transmission case.
3. Remove front oil seal from front cover using a flat-bladed screwdriver.
  
  Fig 8: Removing Front Oil Seal From Front Cover Using Flat-Bladed Screwdriver
  Courtesy of NISSAN NORTH AMERICA, INC.
  
  CAUTION:
  Never damage front cover.
Remove transmission case with the following procedure.
1. Remove baffle plate mounting nut ( →) from transmission case.
  
  Fig 9: Locating Baffle Plate Mounting Nut
  Courtesy of NISSAN NORTH AMERICA, INC.
2. Remove snap ring from main drive gear bearing using snap ring pliers.
  
  Fig 10: Installing Snap Ring To Main Drive Gear Bearing
  Courtesy of NISSAN NORTH AMERICA, INC.
3. Carefully tap transmission case using a soft hammer (A) and then separate adapter plate and transmission case.
  
  Fig 11: Tapping Transmission Case Using Soft Hammer
  Courtesy of NISSAN NORTH AMERICA, INC.
  
  CAUTION:
  Never drop counter front bearing.
Remove counter front bearing (1) from transmission case.

Fig 12: Identifying Counter Front Bearing
Courtesy of NISSAN NORTH AMERICA, INC.
Remove breather tube from transmission case.
CAUTION:
Never damage transmission case.
Remove bracket from transmission case.