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Home >> Chrysler >> 2011 >> 300 C, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1669 (Front Axle - 235 Aa (9 1/4) - 2500 Hd) >> Gear, Ring And Pinion >> Installation

Gear, Ring And Pinion: Installation

WARNING: This page is about a different car, the 2017 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
GC0091725Courtesy of CHRYSLER GROUP, LLC
  1. Install rear pinion bearing cup with Installer (special tool #D-146, Installer, Bearing Cup) (1) and Handle (special tool #C-4171, Driver Handle, Universal) (2).
    GC0091724Courtesy of CHRYSLER GROUP, LLC
  2. Install front pinion bearing cup with Installer (special tool #8886, Installer, Bearing Cup) (1) and Handle (special tool #C-4171, Driver Handle, Universal) (2), if bearing is replaced.
    GC0083330Courtesy of CHRYSLER GROUP, LLC
  3. Install pinion depth shim (1) on the pinion gear (2) shaft.
    GC0091727Courtesy of CHRYSLER GROUP, LLC
  4. Install rear pinion bearing (4) with Installer (special tool #C-3095-A, Installer, Bearing) (2) and a press (1).
    GC0107640Courtesy of CHRYSLER GROUP, LLC
  5. Install new  collapsible spacer (1) on pinion gear (2).
  6. Lubricate pinion and bearings (3).
    GC0107641Courtesy of CHRYSLER GROUP, LLC
  7. Install pinion in housing (2) and place front pinion bearing on pinion shaft. Draw pinion shaft into the front bearing with Installer (special tool #8982, Installer, Pinion) (1).
    GC0107642Courtesy of CHRYSLER GROUP, LLC
  8. Install new  pinion seal with Installer (special tool #8882, Installer, Pinion Seal) (2) and Handle (special tool #C-4171, Driver Handle, Universal) (1).
  9. Apply a light coat of teflon sealant to the pinion flange splines.
  10. Hold pinion and lightly tap the pinion flange onto the pinion shaft, until a few threads are showing.
  11. Install pinion flange washer and new  pinion nut.
  12. Hold pinion flange with Flange Wrench (special tool #8979, Wrench, Pinion Flange) and tighten pinion nut until end play is eliminated.
    GC0155400Courtesy of CHRYSLER GROUP, LLC
  13. Rotate pinion several times to seat pinion bearings.
  14. Measure Pinion Torque To Rotate (1) with an inch pound torque wrench (2). Tighten pinion nut in 6.8 N.m (5 ft. lbs.) increments until pinion torque to rotate is reached.

    Pinion Torque To Rotate is:

    • New Pinion Bearings:  1.7 - 2.8 N.m (15 - 25 in. lbs.)
    • Original Pinion Bearings:  1.1 - 2.2 N.m (10 - 20 in. lbs.)
  15. Rotate pinion several times then verify pinion torque to rotate again.
  16. Position ring gear on differential case and start two new  ring gear bolts.
  17. Install remaining new  ring gear bolts and tighten them alternately to seat the ring gear. Torque ring gear bolts to 140 N.m (103 ft. lbs.).
  18. Install differential in housing. Refer to CASE ASSEMBLY, DIFFERENTIAL, ELECTRIC LOCKER, INSTALLATION .
  19. Measure Total Torque to Rotate (TTTR) with an inch pound torque wrench.

    Total Torque to Rotate is:

    • New Bearings:  3.4 - 5.6 N.m (30 - 50 in. lbs.)
    • Original Bearings:  2.8 - 5.1 N.m (25 - 45 in. lbs.)
      NOTE:

      If TTTR is to high, back off adjusters evenly on both sides slightly and check TTTR again. If TTTR is to low, tighten adjusters evenly on both sides slightly and check TTTR again.

  20. Verify ring gear backlash and gear contact pattern.
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