Leaky Seal
Senior User
Joined: Aug 2007
Posts: 129
Likes: 0
Dana 44 IFS, Dana 44 IFS-HD, and Dana 50 IFS
REMOVAL & INSTALLATION
Dana 44 IFS, Dana 44 IFS-HD, and Dana 50 IFS
Raise and support the front end on jackstands.
Remove the front wheels.
Remove the calipers.
Remove the hub/rotor assemblies.
Remove the nuts retaining the spindle to the steering knuckle.
Tap the spindle with a plastic mallet to remove it from the knuckle.
Remove the splash shield.
On the left side, pull the shaft from the carrier, through the knuckle.
On the right side, remove and discard the keystone clamp from the shaft and joint assembly and the stub shaft. Slide the rubber boot onto the shaft and pull the shaft and joint assembly from the splines of the stub shaft.
Place the spindle in a soft-jawed vise clamped on the second step of the spindle.
Using a slide hammer and bearing puller, remove the needle bearing from the spindle.
Inspect all parts. If the spindle is excessively corroded or pitted it must be replaced. If the U-joints are excessively loose or don't move freely, they must be replaced. If any shaft is bent, it must be replaced.
To install:
Clean all dirt and grease from the spindle bearing bore. The bore must be free of nicks and burrs.
Insert a new spindle bearing in its bore with the printing facing outward. Drive it into place with drive T80T-4000-S for F-150 and Bronco and F-250, or T80T-4000-R for the F-350, or their equivalents. Install a new bearing seal with the lip facing away from the bearing.
Pack the bearing and hub seal with grease. Install the hub seal with a driver.
Place the thrust washer on the axle shaft.
Place a new slinger on the axle shaft.
Install the rubber V-seal on the slinger. The seal lip should face the spindle.
Install the plastic spacer on the axle shaft. The chamfered side of the spacer should be inboard against the axle shaft.
Pack the thrust face of the seal in the spindle bore and the V-seal on the axle shaft with heavy duty, high temperature, waterproof wheel bearing grease.
On the right side, install the rubber boot and new keystone clamps on the stub shaft and slip yoke. The splines permit only one way of meshing so you'll have to properly align the missing spline in the slip yoke with the gapless male spline on the shaft. Slide the right shaft and joint assembly into the slip yoke, making sure that the splines are fully engaged. Slide the boot over the assembly and crimp the keystone clamp.
On the left side, slide the shaft and joint assembly through the knuckle and engage the splines in the carrier.
Install the splash shield and spindle on the knuckle. Tighten the spindle nuts to 60 ft. lbs. (81 Nm).
Install the rotor on the spindle. Install the outer bearing cone and roller, and the adjusting nut. Make sure the metal stamping on the adjusting nut faces inboard and the inner diameter key on the nut enters the spindle keyway.
Apply inward pressure on the hub nut wrench and tighten the adjusting nut to 70 ft. lbs. (95 Nm) while rotating the hub back and forth to seat the bearings.
Apply inward pressure on the wrench and back off the nut about 90° then, re-tighten the nut to 15-20 ft. lbs. (20-27 Nm).
Remove the wrench. End-play of the hub/rotor assembly should be 0 (zero) and the torque required to rotate the hub assembly should not exceed 20 inch lbs. (2.26 Nm).
Exploded view of a dana 44 IFS in my TECH photo gallery
<DIR><DIR>
</DIR></DIR>
Dana 44 IFS, Dana 44 IFS-HD, and Dana 50 IFS
Raise and support the front end on jackstands.
Remove the front wheels.
Remove the calipers.
Remove the hub/rotor assemblies.
Remove the nuts retaining the spindle to the steering knuckle.
Tap the spindle with a plastic mallet to remove it from the knuckle.
Remove the splash shield.
On the left side, pull the shaft from the carrier, through the knuckle.
On the right side, remove and discard the keystone clamp from the shaft and joint assembly and the stub shaft. Slide the rubber boot onto the shaft and pull the shaft and joint assembly from the splines of the stub shaft.
Place the spindle in a soft-jawed vise clamped on the second step of the spindle.
Using a slide hammer and bearing puller, remove the needle bearing from the spindle.
Inspect all parts. If the spindle is excessively corroded or pitted it must be replaced. If the U-joints are excessively loose or don't move freely, they must be replaced. If any shaft is bent, it must be replaced.
To install:
Clean all dirt and grease from the spindle bearing bore. The bore must be free of nicks and burrs.
Insert a new spindle bearing in its bore with the printing facing outward. Drive it into place with drive T80T-4000-S for F-150 and Bronco and F-250, or T80T-4000-R for the F-350, or their equivalents. Install a new bearing seal with the lip facing away from the bearing.
Pack the bearing and hub seal with grease. Install the hub seal with a driver.
Place the thrust washer on the axle shaft.
Place a new slinger on the axle shaft.
Install the rubber V-seal on the slinger. The seal lip should face the spindle.
Install the plastic spacer on the axle shaft. The chamfered side of the spacer should be inboard against the axle shaft.
Pack the thrust face of the seal in the spindle bore and the V-seal on the axle shaft with heavy duty, high temperature, waterproof wheel bearing grease.
On the right side, install the rubber boot and new keystone clamps on the stub shaft and slip yoke. The splines permit only one way of meshing so you'll have to properly align the missing spline in the slip yoke with the gapless male spline on the shaft. Slide the right shaft and joint assembly into the slip yoke, making sure that the splines are fully engaged. Slide the boot over the assembly and crimp the keystone clamp.
On the left side, slide the shaft and joint assembly through the knuckle and engage the splines in the carrier.
Install the splash shield and spindle on the knuckle. Tighten the spindle nuts to 60 ft. lbs. (81 Nm).
Install the rotor on the spindle. Install the outer bearing cone and roller, and the adjusting nut. Make sure the metal stamping on the adjusting nut faces inboard and the inner diameter key on the nut enters the spindle keyway.
Apply inward pressure on the hub nut wrench and tighten the adjusting nut to 70 ft. lbs. (95 Nm) while rotating the hub back and forth to seat the bearings.
Apply inward pressure on the wrench and back off the nut about 90° then, re-tighten the nut to 15-20 ft. lbs. (20-27 Nm).
Remove the wrench. End-play of the hub/rotor assembly should be 0 (zero) and the torque required to rotate the hub assembly should not exceed 20 inch lbs. (2.26 Nm).
Exploded view of a dana 44 IFS in my TECH photo gallery
<DIR><DIR>
</DIR></DIR>
Last edited by mrknight01; Dec 17, 2007 at 12:58 AM.
Thread
Thread Starter
Forum
Replies
Last Post
