Pinion gear seal leak

[75 Duster 360]

I had to rob the pinion yoke from one centersection to use on another. I later bought another used pinion yoke and installed it but now it is leaking. What all is involved in replacing the pinion gear seal?

 

[Mopar Tim]

what rear end you talking about? MT

 

[TrailBeast]

Generally you just remove the yoke, pop the seal out and snug the yoke back up.
(Snug for a yoke)
Some recommend replacing the crush sleeve and re torqueing (If there is a crush sleeve in yours)
Some recommend replacing the crush sleeve with a non crush adjustable type spacer.

I have replaced I don't know how many by doing the first way I said and had zero problems doing it that way.

 

[AJ/FormS]

Same here, zero problems.
Those crush sleeves are tremendously hard to compress.
Different pinion nuts, have different torque specs, so research it.Theres lots of things worse than having a loose nut, but it can get expensive in a hurry.

 

[75 Duster 360]

Thanks for the info. I have a 489 case. When I reinstalled the yoke, I used an air wrench and tried to snug it up, but not too much. The gears are still working fine so far. I may try as you'll suggested.

 

[mderoy340]

This is how I change the seal on a crush sleeve pinion.
- Remove tires, drums, and drive shaft.
- Take a punch and mark the pinion and nut for reference.
- Rotate pinion and check the torque in inch lbs and write it down.
- Before you remove the yoke punch a mark so you can reinstall it on the same splines.
- Change seal, coat pinion threads with Red loctite and retorque until the reference mark is lined up.
- Rotate pinion and check inch lb reading.