96. Front Differential Rotational Torque Measurement Procedure
Front Differential Rotational Torque Measurement Procedure- Tools Required
- DT 464 10 Differential Rotational Torque Adapter
- DT 46427 Driver 78mm x 90mm
- EN 46342 Driver Handle
- J 7754-C Torque Wrench Beam Type
If any of the following components have been serviced or replaced, check the rotational torque to prevent internal damaged to the transaxle assembly.
- The transmission case housing (31)
- The torque converter housing (150)
- The front differential assembly (919)
- The front differential front bearing (902)
- The front differential rear bearing (907)
The rotational torque can be changed by replacing the front differential bearing race 85mm selective shim (910) as needed.
Measure the starting rotational torque at normal room temperature in both directions.
1. Install the front differential assembly (919) into the torque converter housing (150).
2. Install both 14mm x 25mm torque converter housing locating pins (126) into the torque converter housing (150).
3. Install the torque converter housing gasket (68) into the torque converter housing (150).
4. Install the transmission case housing (31) onto the torque converter housing (150).
5. Install a M10 x 1.25 x 50mm transmission case housing flanged mounting bolt (92) in the correct location.
6. Install 5 M1O x 1.25 x 70mm transmission case housing flanged mounting bolts (91) in the correct location.
7. Install a M10 x 1.25 x 80mm transmission case housing flanged mounting bolt (107) in the correct location.
8. Install 14 M10 x 1.25 x 90mm transmission case housing flanged mounting bolts (106) in the correct location.
9. Install a M10 x 1.25 x 100mm transmission case housing flanged mounting bolt (100) in the correct location.
10. Install both M10 x 1.25 x 140mm transmission case housing flanged mounting bolts (89) in the correct location, include the one transmission lift bracket (88).
Notice: Refer to Fastener Notice in Cautions and Notices.
11. Tighten the flanged case mount bolts in the sequence shown.
- Tighten the flanged case mount bolts to 44 Nm (33 ft. lbs.)
12. Using DT 46410 (2), rotate the differential assembly (919) in both directions in order to seat the bearings.
13. Using DT 46410 (2), a torque wrench, and J 7754-C (1), measure the starting rotational torque of the front differential assembly (919).
Specification
- New bearings: 3.9 - 5.1 Nm (35 - 45 inch lbs.)
- Reused bearings: 3.6 - 4.8 Nm (32 - 43 inch lbs.)
14. If the observed measurement is out of specification, remove the front differential bearing race selective shim (910) from the transmission case housing (31) and measure its thickness.
15. Select a new front differential bearing race selective shim (910) from the front differential bearing race selective shim table.
- To increase the starting rotational torque, increase the thickness of the front differential bearing race selective shim (910).
- To decrease the starting torque, decrease the thickness of the front differential bearing race selective shim (910).
- Changing the shim to next size will increase or decrease the starting rotational torque approximately 0.5 - 0.6 Nm (5.5 inch lbs.).
16. Install the new front differential bearing race selective shim (910), and then recheck the starting torque.