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Old 02-18-2005, 04:16 PM
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dana44?

I need to replace the pinion seal , the one behind the yolk, is there any reason the pinion can move once the yolk nut is untorqued? Should the nut be replaced, and what should it be retorqued to? Thankx,Tom

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Old 02-18-2005, 05:54 PM
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Before anyone else gets on your case it's called a yoke, an egg has a yolk.

If you have any way of measuring the torque required to turn the yoke measure it and make note. If you take this measurement with wheels installed on the axle, hubs turned in, or not (depending on front axle or not), make sure to not change these variables when measuring after you've finished the job.

Remove the yoke and replace the leaking seal.

Remember to lightly oil the seal before installing.

Replace the yoke on the pinion shaft and while holding the yoke with whatever you have handy (correct tool, homemade tool, or even a pipe wrench) hold it and tighten firmly in increments.

Check often and either measure the yoke to match the measurement you took in the beginning. Even if you only do it by feel, try to get it close to what you remembered before you started.

It could actually be slightly tighter without a problem, but only a few inch pounds can mean replacing the crush sleeve if your axle is equipped with one, I can't remember correctly off the top of my head but I don't remember the 44 having one.

Another method I have used is to measure the torque required to remove the pinion nut with a pointer type torque wrench, and tighten to 75% percent of the removal torque, it will always require more torque to "break" the nut loose
than to tighten it.

You should be good to go.
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Old 02-19-2005, 07:29 AM
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M&M, Thankx for the help. The guy at the parts store made it sound like the pinion was going to move around alot once the yoke nut was loosened, never had to replace one before so it made me a little nervous. If my 14yr old gets his way maybe this 66 p/u will be worthy of a picture someday. Thankx again, Tom.
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Old 02-19-2005, 07:51 AM
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I think I actually made it sound more complicated than it really is.

One of the books I have here describes the procedure as follows.

1. Raise & support vehicle safely, mark the driveshaft and pinion flange for ease of re-assembly.

2. Disconnect and position driveshaft out of the way.

3. Mark the position of the pinion flange, pinion shaft, and nut. Remove the pinin flange nut and washer.

4. Remove the pinion flange. Position a drain pan under the assemble to catch any excess fluid.

5. Using a center punch, remove the pinion shaft seal from the housing.

6. Installation is the reverse of removal, except replace any lost fluid, and lubricate the inner surface of the new seal with lithium based grease.

I have used wheel bearing grease on almost every pinion and axleshaft seal i have remembered replacing and never had any problems.
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