Rear differential pinion seal

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timbo68

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I'm about to replace my the rear pinion seal on my 2012 Jeep Liberty jet. Some people are telling me that I have to replace the crush sleeves to. Some people and the Internet are saying that this model doesn't have crush sleeves. Is this true? I even looked on YouTube and haven't seen anyone change anything but the seal. Can anyone help me with information on this please?
 

CheddarGau

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I'm about to replace my the rear pinion seal on my 2012 Jeep Liberty jet. Some people are telling me that I have to replace the crush sleeves to. Some people and the Internet are saying that this model doesn't have crush sleeves. Is this true? I even looked on YouTube and haven't seen anyone change anything but the seal. Can anyone help me with information on this please?
Yes the Chrysler 8.25" does have a crush sleeve. best practice is to replace the crush sleeve. It acts almost like a lock ring by keeping tension on the set up to prevent the nut from backing off. If you decide to re-use it, you will need to increase the pinion nut torque by about 10 ft lbs ish to maintain that tension on the nut. I've re-used them in the past on different vehicles , but really comes down to how I feel about the vehicle at the time
 
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duderz7

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Mark it well and turn it in just a bit further, this should compensate for bearing wear and crush the sleeve just a bit. Like most metal once the sleeve is no longer under tension it may relax a bit too so the extra bit may not be necessary. Hard to say without actually putting your hands on it. The torque spec is quite high on that nut. I bought a 4 foot 1/2 inch drive breaker bar just for the occasion.
 

u2slow

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I put in a crush sleeve eliminator when I change a pinion seal. I don't trust myself to not 're-pre-load' used bearings.
 

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