Broke A-Arm Pumpkin Bolt in Rear - JeepForum.com
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post #1 of 13 Old 09-15-2021, 01:57 PM Thread Starter
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Broke A-Arm Pumpkin Bolt in Rear

Yep this sucks. It’s been on the car for six years just fine. I assume the bolt started to work its way loose and once loose eventually snapped. I got the two other bolts free but strained muscles in my arms getting one out even with my longest breaker bar. WJ now at a local shop I trust where I am hoping and praying they can get this bolt out. Yep the bracket tore also. That’s easily fixed once bolt is out.

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'02 HO 235k ml. BDS, tubular arms, Addco sways. 245-70-17. Amsoil. W1CCW WRKi761
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post #2 of 13 Old 09-15-2021, 02:07 PM
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Aluminum is a bugger if you don't use antisieze on the bolts in my experience.
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post #3 of 13 Old 09-15-2021, 06:25 PM
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not sure how handy you are, with the wrenches, but around here, a wj rear axle costs $110, hub to hub at the u-pull-it junkyard. it might be cheaper to just swap a new (used) rear end under the jeep, than to pay a huge labor bill? the plus side of doing this, is, you can throw in new seals and bearings if you wanted, since it's sitting on the floor anyways. even with that, you still might end up with a smaller bill, than paying a shop to fix the one you currently have.


eta: looking at your pic, i can see you've had that break for a while. the mount broke at the broken bolt, and then the crack traveled across to the pass side. you can see the tiny piece that held the rear together, in the shiny metal. you rode that crack a long time. good example of why you need to get under your ride, once a month or so, and give all parts a push, yank, jerk, and visual inspection. you might not have seen the crack, but you may have noticed the missing bolt, leading you to find the cracked piece, before it let go.

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post #4 of 13 Old 09-16-2021, 06:50 AM Thread Starter
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Yes, I’ve heard squeaks back there for some time and couldn’t ID where it was coming from. Needless to say when the bracket GAVE WAY I quickly ID’d it.

I pulled a muscle in my arm getting those two bolts out & can’t hold a coffee cup at the moment so needless to say I did farm the job out. I just got a call and the shop pulled the rear end to get enough access. They got the broken part out and believe the hole might not have been drilled/tapped deep enough originally. They could tell I tightened it (lol) but clearly the bracket wasn’t anchored down on that corner/ inspire of me torquing it and believing it to be so.

They drilled/ tapped the hole and at my request installed studs instead. 8-) with lock tite. I should never have this problem again. I’ll double check nut torque in a few days to make sure all is snug.

Also at my request they thickened the bottom bracket piece from 0.200” to 0.250” and put in a couple more gussets. They also said the bracket would NOT have failed if bolt wasn’t first a problem.

I’ll have a pic up this evening or so to show the improvement.
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'02 HO 235k ml. BDS, tubular arms, Addco sways. 245-70-17. Amsoil. W1CCW WRKi761
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post #5 of 13 Old 09-16-2021, 07:07 AM Thread Starter
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Quote:
Originally Posted by nickfast View Post
Aluminum is a bugger if you don't use antisieze on the bolts in my experience.
I thought of that when I installed it but I didn’t want bolts to work their way loose! Lol and what’d I get for THAT decision ��.

With studs installed should be A-OK from here on out. Shwoooo…. I was SO thankful I was able to just get home from work and have that fail just as I got into my road and driveway. After a few experiences like this I’ll just say I was blessed (as I don’t believe in luck �� :-)

'02 HO 235k ml. BDS, tubular arms, Addco sways. 245-70-17. Amsoil. W1CCW WRKi761
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post #6 of 13 Old 09-16-2021, 12:09 PM
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Studs are a nice solution. Too bad Mother Chrysler didn't think it was a good idea.
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post #7 of 13 Old 09-16-2021, 12:53 PM Thread Starter
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Frankly I SHOULD have thought of it at initial install 6 yrs ago. My bad!

'02 HO 235k ml. BDS, tubular arms, Addco sways. 245-70-17. Amsoil. W1CCW WRKi761
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post #8 of 13 Old 09-16-2021, 03:29 PM Thread Starter
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Well looks like I didnít get any added gussets after all BUT I am so thankful it was repaired and no added expense of a new axle housing. Hereís the pic.
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'02 HO 235k ml. BDS, tubular arms, Addco sways. 245-70-17. Amsoil. W1CCW WRKi761
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post #9 of 13 Old 09-17-2021, 12:46 PM
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Looks like they put washers between the bracket and the pumpkin as well.
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post #10 of 13 Old 09-18-2021, 10:01 AM
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With those washers under the bracket don't be surprised if it breaks due to flexing.

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post #11 of 13 Old 09-18-2021, 06:26 PM Thread Starter
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I wondered why they put washers there. I never had them there. Tell me more why they are bad? If they are torqued down what’s the difference between that there and just a thicker bottom bracket? I could use some education here please.

'02 HO 235k ml. BDS, tubular arms, Addco sways. 245-70-17. Amsoil. W1CCW WRKi761
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post #12 of 13 Old 09-18-2021, 08:40 PM
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you have moved the point where the torque is applied away from the threads in the pumpkin. with that bracket the A frame can exert a lot more force on to the bolts, with a standard ball joint/A frame, the force is more sideways, with the lift its more vertical, pulling the bolts up.
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post #13 of 13 Old 09-19-2021, 06:51 AM Thread Starter
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Ah ha. Thanks for that description. Even makes sense to a clod like me. Should be easy enough to remove bracket and take off washers.

'02 HO 235k ml. BDS, tubular arms, Addco sways. 245-70-17. Amsoil. W1CCW WRKi761
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