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Ball joint threads
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haspe
Posted 2014-11-29 8:44 PM (#463140)
Subject: Ball joint threads


Veteran

Posts: 113
100
Location: Washington State, the wet side
After removing the ball joints and cleaning the upper controll arms I noticed that the driverside threads are not intact. Question now is, do I put a new ball joint back in that controll arm or do I find another controll arm with good threads. I assume the threads were always like this unless I damaged them when removing the old ball joint, can't see how I would but it's possible.
Picture 1&2 is the damaged threads, picture 3 is the good one.

Edited by haspe 2014-11-29 8:47 PM




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ttotired
Posted 2014-11-29 11:25 PM (#463152 - in reply to #463140)
Subject: Re: Ball joint threads



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Location: Perth Australia
Thats fine

They cut their own threads as they wind in, thats why they are so hard to get out and back in

If you look at the thread on your new ones, you will see that they are not deep and are sort of triangle shaped, thats so they move the metal around in the bore to suit themselves

If they were a propper thread, they would (most likely) need a lock nut to stop them from slowly unscrewing themselves over time

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60 dart
Posted 2014-11-30 12:07 AM (#463156 - in reply to #463140)
Subject: Re: Ball joint threads



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they will cut new threads but if one can get lucky , they will screw back into the old threads with ease and tighten nicely to spec . i've done it more than once .
maybe by dumb luck , i don't know but it can be done . rule of thumb , if they go back in extremely hard , they are crossed of the old threads . you may want
to look at the threads on the newer ones of today versus older nos . sometimes they are not as pronounced as the older ones --------------------------------------later
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haspe
Posted 2014-11-30 12:18 PM (#463208 - in reply to #463140)
Subject: Re: Ball joint threads


Veteran

Posts: 113
100
Location: Washington State, the wet side
This board is great! Thanks guys! New ones will go back inn this week.
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oldwood
Posted 2014-12-21 1:14 AM (#465381 - in reply to #463140)
Subject: Re: Ball joint threads


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Location: little rock, AR
Here are the threads after removing BJ last week on some '59 Plymouth arms. I'm kicking myself tonight because I forgot to bid on a snap-on ball joint socket. It ended at $16.50. Great buy for a Snap-on. ugh, more ugh!!!



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Attachments 001.JPG (216KB - 94 downloads)
Attachments 002.JPG (185KB - 99 downloads)
Attachments 003.JPG (142KB - 92 downloads)
Attachments 004.JPG (166KB - 92 downloads)
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