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Home >> Ford >> 2000 >> Contour SE, 2.5 L, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 724 (Rear Drive Axle/Differential - DANA 60 & 70) >> General Procedures >> Differential Case and Pinion Set Up >> Ring Gear and Pinion Backlash

Ring Gear and Pinion Backlash

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  1. Install the outboard spacers in the side from which they were removed.
    Fig 1: Installing Outboard Spacers
    G01947911Courtesy of FORD MOTOR CO.
  2. Place the differential assembly with the special tool in the differential housing.
    • For Model 60/70 axles, use tool 205-D047.
    • For Model 70TR axles, use tool 205-D048.
    Fig 2: Placing Differential Assembly With Special Tool
    G01947912Courtesy of FORD MOTOR CO.
  3. Install the special tools. Locate the tip of special tool 308-021 on a flat surface of one of the bolts.
    Fig 3: Measuring Ring Gear And Pinion Backlash (1 Of 3)
    G01947913Courtesy of FORD MOTOR CO.
    4. NOTE: Repeat this step and the following step until the same reading appears on the indicator each time. This is the differential bearing shim thickness necessary between the differential case and the differential bearing on the differential ring gear side of the differential case.
    Fig 4: Measuring Ring Gear And Pinion Backlash (2 Of 3)
    G01947914Courtesy of FORD MOTOR CO.
  4. Force the differential case (differential ring gear) away from the drive pinion. With force still applied, set the indicator at 0.
  5. Force the differential ring gear into mesh with the pinion, to obtain an indicator reading. Record the reading.
    Fig 5: Measuring Ring Gear And Pinion Backlash (3 Of 3)
    G01947915Courtesy of FORD MOTOR CO.
  6. Remove the special tools and the differential case from the differential housing.
    Fig 6: Removing Special Tools
    G01947916Courtesy of FORD MOTOR CO.
  7. Remove the Dummy Bearings from the differential case.
  8. Place one shim, of the necessary thickness, as determined from the previous measurement, on the differential ring gear side of the differential case. If additional shimming is necessary, beyond what the hardened differential bearing shim can provide, select and install a different thickness outboard spacer.
  9. Using the special tool, install the differential bearing on the differential ring gear side of the differential case.
    Fig 7: Installing Differential Bearing On Differential Ring Gear Side Of Differential Case
    G01947917Courtesy of FORD MOTOR CO.
  10. Determine the correct shim thickness and place it on the differential case hub on the drive pinion side.
    • To determine the correct shim thickness, first, subtract the reading of the previous measurement from the total differential case end play reading obtained under DIFFERENTIAL CASE END PLAY CHECK . Then, add 0.25 mm (0.010 inch) to this amount. This is the correct thickness shim to place on the hub. If additional shimming is necessary, beyond what the hardened differential bearing shim can provide, select and install a different thickness outboard spacer.
  11. Using the special tools, install the differential bearing.
    1. Place the special tool on the differential bearing to protect it during the installation of the opposite bearing.
    2. Using the special tool, drive the differential bearing onto the hub.
    Fig 8: Placing Special Tool On Differential Bearing
    G01947918Courtesy of FORD MOTOR CO.
    Fig 9: Installing Differential Bearing With Special Tool
    G01947919Courtesy of FORD MOTOR CO.
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