Broke a ring gear bolt!?! - JeepForum.com
 
LinkBack Thread Tools
post #1 of 11 Old 10-10-2013, 09:11 PM Thread Starter
365Jeep
Member
2001 TJ Wrangler 
 
Join Date: Aug 2013
Location: Siloam Springs
Posts: 219
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.

365Jeep is offline  
Sponsored Links
Advertisement
 
post #2 of 11 Old 10-11-2013, 07:26 AM
Evildriver-3
Registered User
1995 ZJ 
 
Join Date: Mar 2005
Posts: 957
What diff, no jeep diff (Dana) see's 80 on RG bolts.

1995 Jeep gc ltd, 2005 Jeep gc ltd , 71 Dart, 73 RR 440-6pk, 78 Mag GT, 85 Power Ram W-350, 92 Daytona, 99 Dakota, 08 Ram 2500

Less than 8 is like playing with half a deck
]=Supershafts=[
Long Island Motorsports Association
Evildriver-3 is offline  
post #3 of 11 Old 10-11-2013, 11:19 AM Thread Starter
365Jeep
Member
2001 TJ Wrangler 
 
Join Date: Aug 2013
Location: Siloam Springs
Posts: 219
Apparently, but the Factory Service Manual says 70-90.
365Jeep is offline  
post #4 of 11 Old 10-11-2013, 11:25 AM
Duh
Registered User
 
Join Date: Apr 2002
Posts: 491
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.
Duh is offline  
post #5 of 11 Old 10-11-2013, 11:39 AM
Wheelin98TJ
JEEP FREAK
 
Wheelin98TJ's Avatar
1998 TJ Wrangler 
 
Join Date: Apr 2004
Posts: 25,950
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?
Wheelin98TJ is offline  
post #6 of 11 Old 10-11-2013, 01:23 PM
Evildriver-3
Registered User
1995 ZJ 
 
Join Date: Mar 2005
Posts: 957
What diff is this, I didn't need to know the manual is wrong, I know already, forget it, 55 lbs D25 thru 44

1995 Jeep gc ltd, 2005 Jeep gc ltd , 71 Dart, 73 RR 440-6pk, 78 Mag GT, 85 Power Ram W-350, 92 Daytona, 99 Dakota, 08 Ram 2500

Less than 8 is like playing with half a deck
]=Supershafts=[
Long Island Motorsports Association
Evildriver-3 is offline  
post #7 of 11 Old 10-11-2013, 01:53 PM Thread Starter
365Jeep
Member
2001 TJ Wrangler 
 
Join Date: Aug 2013
Location: Siloam Springs
Posts: 219
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.
365Jeep is offline  
post #8 of 11 Old 10-11-2013, 02:12 PM
Wheelin98TJ
JEEP FREAK
 
Wheelin98TJ's Avatar
1998 TJ Wrangler 
 
Join Date: Apr 2004
Posts: 25,950
Someone was smoking weed when they wrote the Jeep FSMs saying torque a 3/8" bolt to 70-90 ft/lbs.
Wheelin98TJ is offline  
post #9 of 11 Old 10-12-2013, 10:24 AM
WhiteMtnJeep
It Should Have Been MEG!!
 
WhiteMtnJeep's Avatar
2003 TJ Wrangler 
 
Join Date: Aug 2008
Location: Silver City
Posts: 4,223
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.

Silence is Golden, Duct tape comes in Many Colors.

Journeyman Meterman IBEW Local 611

Work with enthusiasm as though you were working for the Lord rather than for man.

http://www.treadlightly.org/

Siena Jeep Owner's Member 25

/l ,[____],
l---L -0lllllll0-

()_) ()_)-O-)_)
WhiteMtnJeep is offline  
post #10 of 11 Old 10-12-2013, 06:48 PM
0125JeepGuy
Registered User
 
Join Date: Aug 2013
Posts: 73
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
0125JeepGuy is offline  
post #11 of 11 Old 10-14-2013, 10:16 PM
gearswapper
Registered User
2004 WJ 
 
Join Date: Nov 2012
Location: Christiansburg
Posts: 76
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.
gearswapper is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the JeepForum.com forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid e-mail address for yourself.



Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome