B4000 SE Cab Plus 4WD V6-4.0L OHV (1997)
Seals and Gaskets: Service and Repair
REPLACEMENT
1. Jack up the front of the vehicle and support it with safety stands.
2. Drain the differential oil.
3. Remove the propeller shaft.
4. Hold the companion flange using the Special Service Tool (SST) and remove the locknut and washer.
NOTE: SST number: 49 S120 710 Companion Flange Holder
5. Remove the companion flange using Companion Flange Remover T65L-4851-B, or equivalent.
6. Remove the dust shield.
7. Remove the oil seal.
8. Apply gear lubricant to the oil seal.
9. Install the oil seal as follows:
a. On Dana 35 axles, install the oil seal using Pinion Oil Seal Replacer T79P-4676-A, or equivalent.
b. On Dana 28 axles, install the oil seal using Pinion Oil Seal Replacer T71 T-3010-R, or equivalent.
NOTE: Make sure the spring does not pop out of the seal. Replace the seal if the spring pops out.
10. Install the dust shield onto the companion flange as follows:
a. On Dana 35 axles, install the companion flange using Companion Flange Replacer T85T-4851-AH, or equivalent. Tighten companion flange
nut to 271 Nm (200 ft. lbs.).
b. On Dana 28 axles, install the companion flange using Companion Flange Replacer T83T-4851-A, or equivalent. Tighten companion flange nut
to 271 Nm (200 ft. lbs.).
11. Check the rotational torque of the drive pinion. Rotational torque should be within 1.7 - 2.8 Nm (15 - 25 inch lbs.).
NOTE: If rotational torque exceeds 2.8 Nm (25 inch lbs.) the collapsible spacer must be replaced.
12. If rotational torque is not within 1.7 - 2.8 Nm (15 - 25 inch lbs.) tighten the locknut until it is within 1.7 - 2.8 Nm (15 - 25 inch lbs.).
CAUTION: Never tighten the locknut more than 474 Nm (350 ft. lbs.), or the collapsible spacer will need to be replaced.
13. Fill the differential with the specified amount and type of oil.
