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Unread 10-10-2013, 09:11 PM   #1
365Jeep
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Broke a ring gear bolt!?!

Okay, I was installing my new ring gear tonight when one of the bolts broke! I was tightening them in a crossing pattern, first at 20 ft-lbs, then 50, then 80 to finish and... SNAP! Now what? Do I have to start over with new bolts? The FSM says 70-90 ft-lbs.

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Unread 10-11-2013, 07:26 AM   #2
Evildriver-3
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What diff, no jeep diff (Dana) see's 80 on RG bolts.
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Unread 10-11-2013, 11:19 AM   #3
365Jeep
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Apparently, but the Factory Service Manual says 70-90.
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Unread 10-11-2013, 11:25 AM   #4
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When a bolt is tightened into its yield zone it needs to be replaced if removed. Anything with a torque+ degree is always that way. Some with a simple torque number are too. Anything thats load/torque bearing i always replace.
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Unread 10-11-2013, 11:39 AM   #5
Wheelin98TJ
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There are conflicting torque values for ring gear bolts, likely due to the bolt size change from 3/8" to 7/16".

What size ring gear bolts are you dealing with?
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Unread 10-11-2013, 01:23 PM   #6
Evildriver-3
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What diff is this, I didn't need to know the manual is wrong, I know already, forget it, 55 lbs D25 thru 44
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Unread 10-11-2013, 01:53 PM   #7
365Jeep
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It's a reverse cut D30. I think my local O'Reilly Auto Parts carries individual bolts. I can do 55 lbs. That will be a lot less stressful. 80 ft-lbs seemed really tight. Thanks.
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Unread 10-11-2013, 02:12 PM   #8
Wheelin98TJ
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Someone was smoking weed when they wrote the Jeep FSMs saying torque a 3/8" bolt to 70-90 ft/lbs.
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Unread 10-12-2013, 10:24 AM   #9
WhiteMtnJeep
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If you broke one and torqued all of them that tight, replace them all. Bolts are not expensive and you know everything will be ok after you close it up.
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Unread 10-12-2013, 06:48 PM   #10
0125JeepGuy
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i would drill it out and replace it with hardened bolts. or whatever tickles your fancy. when i bought my gladiator, the previous owner replaced the ring and pinion and broke a couple bolts and left it like that. come to find out, after going thru the diff, it was trashed (maybe because of this, but who knows why) i mean there were chunks missing in the pinion, the casing had a crack in it the spider gears were all screwed up and the cover had dings in it from the inside from the ring hitting it (why i dont know) but if i were you i'd play it safe
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Unread 10-14-2013, 10:16 PM   #11
trav278
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I agree with Whitemtnjeep, carefully remove them and install a new set torqued to 55. I also use red threadlocker on all of the ring bolts I install for customers. Its cheap insurance.
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