Yukon ring gear torque spec?

[homebrewer]

I RTFM but apparently I am illiterate because I cannot find the torq spec for the ring gear bolts. The m220 torque spec appears to be >130ft/lbs but I thought past models were far less so I want to make sure I don't damage this gear during install. Its already on its new ARB locker with the bolts torqued to 60ft/lbs waiting.

for instance, the stock ring gear bolts specs are here:

https://d3qx1uccksbb2n.cloudfront.net/docs/SPECSHEET-JL-REAR-UD44A-D44A-42019.pdf

I can attest to those bolts being a nightmare to remove even with my impact wrench. 4 of the bolts just rounded instead but that's another story....

Edit: The manual has a table of ring gear specs on the front page but only references dana 44, not the m220 that has a different carrier. I am certain the spec is not in the manual.

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[homebrewer]

best I could find searching is this: https://www.jeepgladiatorforum.com/forum/attachments/03-rear_axle_m220_torque_specs-pdf.313756/

no explanation of origin

 

[b-roc]

See if this thread gives you what you need https://www.jeepgladiatorforum.com/...-and-need-to-verify-specs.69269/#post-1133632

I've had it bookmarked for myself for a while.

 

[Hootbro]

best I could find searching is this: https://www.jeepgladiatorforum.com/forum/attachments/03-rear_axle_m220_torque_specs-pdf.313756/

no explanation of origin

That file came from me that I put in a few other differential threads. It is a PDF printout from the Chrysler Tech Authority service that the dealerships use.

 

[homebrewer]

That file came from me that I put in a few other differential threads. It is a PDF printout from the Chrysler Tech Authority service that the dealerships use.

nice. Do you happen to have the procedure for installing the pinion? Its hard on the gladiators because you can't just screw down the yoke to press on the external pinion bearing.

 

[kevman65]

From Dana for the torque values;

https://d3qx1uccksbb2n.cloudfront.net/docs/SPECSHEET-JL-REAR-UD44A-D44A-42019.pdf

 

[Hootbro]

nice. Do you happen to have the procedure for installing the pinion? Its hard on the gladiators because you can't just screw down the yoke to press on the external pinion bearing.

Rear

https://www.jeepgladiatorforum.com/...-and-need-to-verify-specs.69269/#post-1133797

Front

https://www.jeepgladiatorforum.com/...-and-need-to-verify-specs.69269/#post-1133632

 

[homebrewer]

Thanks. I had my suspicion it could require a special tool. I think I'm just going to bolt a bar across the back of the diff and screw a bolt through that until it holds the pinion in place. I am paranoid of bearing damage, however.

 

[homebrewer]

I ended up bolting a plate to the back of the diff with a long bolt to hold the pinion in place while I hammer the yoke on. Worked fast and easy.

 

[homebrewer]

I used a torque wrench while torquing the ring gear bolts to measure the force and the 75 ft lbs _ 57.5 degrees works out to about 140 ft/lbs as well.

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