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Old 11-16-2008, 12:41 PM
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MYBAD79 MYBAD79 is offline
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Default Trailing arms: Johnny Joint install - pics

Started on the Johnny Joint installation yesterday. I bought two used trailing arm assemblies from forum member Clutchdust so now I can take my time rebuilding the bearings and the arms while my '79 is still driveable

I started with a hole saw:

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This has to be the quickest way to remove the old bushing

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Here's the housing for the Johnny Joint fitted into the trailing arm.


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and welded in place.... not a very beautiful weld but structurally I'm not worried


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Johhny Joints: here's the info from Currie's website:

Currie's Johnny JointŪ offer 30 degrees of unrestricted movement in any direction as compared to 22 degrees on a common heim joint. The bushing in the Johnny JointŪ rod ends are made with a high density, "tough 88" urethane that encases the inner ball. Its a very durable material and it is impervious to weather. The special ball is heat treated steel for extra strength. and on the 2" and 2 1/2" models the ball is cross drilled for thru-bolt lubrication.
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Old 11-16-2008, 01:59 PM
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Karsten, Is the 2" width in the specs the width of the shell or the ball? Did you get the greasable bolt?
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Old 11-16-2008, 03:09 PM
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On their website they say it's a 2" width but it's also a 2" diameter.
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Old 11-16-2008, 03:38 PM
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whose Johnny?
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Old 11-16-2008, 03:49 PM
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Quote:
Originally Posted by redvetracr View Post
whose Johnny?
Some dude.....


Any idea how I can get the spindle out of the carrier ?? Can't really support the carrier good enough, might have to "fab sumthin"
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Old 11-16-2008, 04:33 PM
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Quote:
Originally Posted by redvetracr View Post
whose Johnny?
No, it's "Here's Johnny."(Fred Mc Mahan)
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Old 11-16-2008, 04:46 PM
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Old 11-17-2008, 12:04 PM
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I removed the spindle and the bearings. Next weekend I'll start blasting parts....

The seals did not look too good:



This is the inner seal, I'll have to have a look at the new seal to see if it's supposed to be flat or not....


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Here's the dust cap... looks crushed....

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inside of dust cap:

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Old 11-17-2008, 12:40 PM
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Those weird flat seals are the original ones. The inner one has 3 "tabs" folded over to secure the 2 sides together. It's basically 2 metal rings with the rubber seal wedged in between. IMO these are a lot nicer than the aftermarket thin stamped steel with vulcanized rubber ones. The stock oens are very sturdy and do not easily deform when pressing them in.
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Old 11-17-2008, 02:41 PM
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Is that dust cap crushed or is it supposed to be not parallel ??
[edit] ... just saw a pic in one of the catalogs.... it's parallel ... guess I'll have to order more new parts....

Last edited by MYBAD79; 11-17-2008 at 02:45 PM..
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