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Mudbelly



Member Since: 13 Jun 2025
Location: Ireland
Posts: 2

Ireland 
A-Frame ball joint bolt snapped
Hi there,

I've been stuck removing the whole a-frame fulcrum bracket ball joint for days now when finally 1 of the long bolt broke free and then I noticed only half the bolt came out, the other half stayed in, hitting with a hammer through where the first half of the broken bolt was, and no movement, however I do notice the fulcrum is not level? Is this why it snapped and is this why I can't knock out the rest?

See photos:


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Post #1069640 13th Jun 2025 4:07pm
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blackwolf



Member Since: 03 Nov 2009
Location: South West England
Posts: 17821

United Kingdom 2007 Defender 110 Puma 2.4 DCPU Stornoway Grey
Assuming you've managed to separate the ball joint taper already, I suggest removing the whole assembly from the vehicle and dealing with it on the bench. It's likely to be rust and corrosion giving you grief and you will .probably find it easier to drift out (or cut the bolts) in a vice.
Post #1069646 13th Jun 2025 4:59pm
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Screbble



Member Since: 26 Apr 2015
Location: Lancashire
Posts: 2267

United Kingdom 2004 Defender 90 Td5 XS CSW Zambezi Silver
That’s a real pain.


As Blackwolf has said. It’s better to take the whole assembly off and get it in a vice.

If you don’t fancy that, then get the bolts/holes doused in proper penetrating oil (not WD40!) and get some heat on it.

Use a punch or smaller diameter bolt to knock out the remainder of the broken bolt.

I used penetrating oil (PlusGas) over the course of a few days before tackling mine and the bolts came out easily - not much help to you I know.
Post #1069649 13th Jun 2025 5:11pm
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Johan_B



Member Since: 20 Sep 2024
Location: Gothenburg
Posts: 103

Sweden 2008 Defender 110 Puma 2.4 CSW Tonga Green
Make sure as blackwolf says that the ball joint is loose, this will release some tension.
Then I would try to put a nut on the remaining part and attack it with an impact driver if you can get one there. Escalate with penetrating oil and heat.
Removing the entire upper link is the final solution but can of course be problematic as well.
Post #1069653 13th Jun 2025 5:32pm
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Mudbelly



Member Since: 13 Jun 2025
Location: Ireland
Posts: 2

Ireland 
Thanks folks.

The second bolt snapped also before I saw this but loosening the castellated nut first would have loosed the tension?

I used a lot of heat and a DCF900 gun but the bolts snapped, I don't fancy taking the A-Frame off but is it worth trying the castellated nut next and see if things loosen up and see if I can knock out the 2 broken bolts.

@Screbble the 2 nuts where the broken bolts are were no problem to loosen even without the gun.
Post #1069660 13th Jun 2025 6:17pm
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Screbble



Member Since: 26 Apr 2015
Location: Lancashire
Posts: 2267

United Kingdom 2004 Defender 90 Td5 XS CSW Zambezi Silver
If you can…
Try and create a ‘gap’ between the two arms and the ball joint casting and get some decent penetrating fluid in there. As you don’t have the nuts on, and only half the bolts, you should be able to hit the casting and create some movement.

I am assuming you intend to replace the ball joint assembly as a whole.

After all this trouble I do hope it’s a Gwyn Lewis greasable ball joint!

Fingers crossed you’ll soon be sorted 👍
Post #1069662 13th Jun 2025 6:35pm
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Johan_B



Member Since: 20 Sep 2024
Location: Gothenburg
Posts: 103

Sweden 2008 Defender 110 Puma 2.4 CSW Tonga Green
Maybe I’m misunderstanding what you have done so far but if what you still have there is the bolts without their heads and you put the nuts back on and then tighten the nuts with the gun, that will either pull or rotate the bolt. With some luck it will break the bond.
Post #1069667 13th Jun 2025 7:58pm
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Dinnu



Member Since: 24 Dec 2019
Location: Lija
Posts: 3572

Malta 2012 Defender 90 Puma 2.2 CSW Santorini Black
In a similar situation (trailing arm to axle bolt) what worked for me is weld a bolt - head side to the bolt you want to remove, place a socket or tube or similar of correct length over the bolt, washers, and use a nut to pull the bolt out. 1988 90 Hard Top, 19J Diesel Turbo, Shire Blue - Restoration ongoing
2012 90 CSW, 2.2TDCI, Santorini Black
Post #1069674 13th Jun 2025 8:55pm
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custom90



Member Since: 21 Jan 2010
Location: South West, England.
Posts: 20881

United Kingdom 
Screbble wrote:


After all this trouble I do hope it’s a Gwyn Lewis greasable ball joint!

Fingers crossed you’ll soon be sorted 👍

+1 Good bit of kit. Thumbs Up _\Hennessey|Venom| F5/___
___\⭐️Lone|Star|State/___
____\We|Will|Win/___

____/🇬🇧🇺🇸\____
_//*⛽️🛢️⚙️🧰*\\_
Post #1069677 13th Jun 2025 9:39pm
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