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Discussion Starter #1
Is it possible to replace the spline shaft seal without disturbing critical ring/pinion alignments?
If so is it just a matter of removing the spline nut and the spline and then removing and re-installing the seal?

Thanks,
Rick
 

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It is possible to do, many people have.

You need to re-establish pinion bearing preload which is about 175 ft*lbs.

Your pinion bearing setup probably has a crushwasher that won't quite allow you to get there so just tighten it as tight as you can.

The nice thing is, your not disturbing the critical backlash pinion depth adjustments when you just remove and replace the pinion nut and yoke.
 

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Discussion Starter #3
To preload the bearing, are you saying tighten the flange nut to 175 flbs.?
Why do you say I can't reach that amount?

Thanks for the help,
 

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If you're just replacing the seal, no need to worry about the 175 ftlbs torque. Once the crush sleeve is crushed, it can't be crushed properly again. If you try crushing it somemore, it will change the settings on the ring/pinion. Change the seal, install a new pinion nut and run the nut down tight with an impact.
 
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