Front Final Drive: Disassembly: Pre-Inspection

Before disassembling final drive, perform the following inspection.

• Total preload
  1. Turn drive pinion in both directions several times to set bearing rollers.
  2. Check total preload with Tool.
     1. Tool number: ST3127S000 (J25765-A) 
     2. Total preload: 
        1. P ₁  + [0.3 - 1.5 N.m (3 - 15 kg-cm, 2.6 - 13.0 in-lb)] 
        2. P ₁  : Drive pinion preload 
  Fig 1: Checking Total Preload

  Courtesy of NISSAN MOTOR CO., U.S.A.
• Ring gear to drive pinion backlash

  Check backlash of ring gear with a dial indicator at several points.

  1. Ring gear-to-drive pinion backlash: 
     1. 0.10 - 0.15 mm (0.0039 - 0.0059 in) 
  Fig 2: Measuring Ring Gear-To-Drive Pinion Backlash

  Courtesy of NISSAN MOTOR CO., U.S.A.
• Ring gear runout

  Check runout of ring gear with a dial indicator.

  1. Runout limit: 
     1. 0.05 mm (0.0020 in) 
        Fig 3: Measuring Ring Gear Runout

        Courtesy of NISSAN MOTOR CO., U.S.A.
• Tooth contact

  Check tooth contact. Refer to "TOOTH CONTACT " .

  Fig 4: Measuring Clearance Between Side Gear Thrust Washer And Differential Case

  Courtesy of NISSAN MOTOR CO., U.S.A.
• Side gear to pinion mate gear backlash

  Using a feeler gauge, measure clearance between side gear thrust washer and differential case.

  1. Clearance between side gear thrust washer and differential case: 
     1. Less than 0.15 mm (0.0059 in)