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Unread 03-25-2014, 05:39 AM   #91
squire_wj
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If you know someone with a little wire feeder or stick machine and know what there doing that would be the way to go IMO. As for the 90mm bolts they threaded all the way down on my diff.

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Unread 03-25-2014, 09:43 AM   #92
Tollmtn
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Quote:
Originally Posted by rlw7353 View Post
Well thanks, thats explaining why these things dont seem to want to come out easy. I dont weld but I saw that process online. Is this a common enough practice that I could I get someone to come out and do that? I ordered some backouts that are a little different from what I've seen before. these have a relatively short reverse thread grabber section that doesn't go down to a point and a hex head on top. It looked to me like it would have less of a possibility of breaking off.
Another question, when I get the 80mm broken stud out and try to put the 90mm bolt in, is the hole tapped all the way down or do I have to add some threads? thanks
Everything Squire said was right on the money. If you know anyone that is even a semi skilled welder he should be able to do the job. If you do not know a welder and if there is a machine or fab shop close by you could discreetly ask if any of the guys has a small welder and if for a small fee they would remove the bolts, often this works because many machinist and welders moonlight.

My next suggestion could be more expensive, if you live near a good sized city, there may be a mobile service that specializes in removing broken taps, drills bolts spark plugs or whatever. Usually they are machinist that went in on their own or they are moonlighting. They get really skilled at removing broken taps drill and bolts because they do it so often in day in and day out work. One guy I know built his own EDM and was making a few extra buck under the table with it. The link below is an example of what to look for.

http://www.brokentap.com/services.html

SO....Search your local yellow pages for broken tap or broken bolt removal service. They should have all the required tools they may even have an EDM machine, although EDM is messy and works better on broken taps and drills than on bolts.

Say...Just so you have the numbers...The original OEM flange bolts with just the ball joint screwed in to a depth of 1.200"

90 mm bolts with flat washer and 2" spacer and the ball joint will screw in to a depth of 1.249" = .049" deeper that is less than one thread deeper so as Squire said thread depth will not be a problem.
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Unread 03-27-2014, 11:28 AM   #93
rlw7353
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the 3 broke studs are out! I found a welder to come by and do it using the washer and nut method. now for a weekend put-back-together
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Unread 03-27-2014, 11:48 AM   #94
brouwmat
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Quote:
Originally Posted by rlw7353 View Post
the 3 broke studs are out! I found a welder to come by and do it using the washer and nut method. now for a weekend put-back-together
Congrats! It should go back together a lot easier.

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Unread 03-27-2014, 12:39 PM   #95
squire_wj
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Glad to hear my method worked out for you.
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Unread 03-27-2014, 03:04 PM   #96
Tollmtn
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Originally Posted by rlw7353 View Post
the 3 broke studs are out! I found a welder to come by and do it using the washer and nut method. now for a weekend put-back-together
You may know this, the Jeep/Mopar recommended torque for the three bolts is 100 ft/lbs. That may seem low, but it is not low considering that the 44A differential is aluminum.
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Unread 03-29-2014, 01:22 PM   #97
rlw7353
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it is done-

for now at least. not something I particulary enjoyed but a necessary project for me and the 16 year old whose main technical skill in life is a iphone. I couldn't get a torque wrench on the 3 bolts so they are as tight as I could apply with a end wrench. Thanks for all the help!
finished.jpg

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Unread 04-04-2014, 02:27 PM   #98
brouwmat
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A Crows foot wrench will help with that.

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Unread 05-27-2015, 09:04 PM   #99
Jeeples
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BUMP!

I just picked up a Zone 4" lift kit, and noted that the bolts supplied for the RUCA spacer are 80MM. Looks like I'll need to stop by the local nut and bolt supply to pick up the correct 90MM bolts and flat washers.

FWIW, I purchased a never used Rusty's RUCA spacer from a fellow forum member some months back to use on my wife's WJ. It came in the original bag with hardware, suspecting the typical issues with some Rusty's products, I blindly assumed that the bolts were too short and picked up some 90MM replacements just in case. Turns out Rusty's supplies you with the correct 90MM bolts, sans the flat washers. The bolts were black phosphate coated 10.9 grade to boot.

So, in summary:

Zone Offroad RUCA Spacer = new 90MM bolts and washers needed to replace the hardware they provide.

Rusty's RUCA Spacer = bolts good to go, just need washers.
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Unread Yesterday, 05:45 PM   #100
Acc0919mc
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Originally Posted by Merc1973 View Post
I hope RC pays for your new D44a.

or get a used junkyard axle.
Im in the middle of trying to find a rear end for my WJ, 10/10 do not recommend. Both they have pulled so far have had missing teeth and lots of shavings
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