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Old 07-26-2012, 08:22 AM   #1
48superd
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Default Rear Spring Shackle Stud Replacement

Hello,
What do I need to do to replace the rear spring shackle studs on my 1948 Tudor. I have the rear end assembly removed. Will I need any special tools?
Thanks!
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Old 07-26-2012, 08:35 AM   #2
Ralph Moore
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Default Re: Rear Spring Shackle Stud Replacement

Getting the old ones out shouldn't be too bad, I think I used a punch to get the stud out and then once all the rubber was out(as it didn't come out in one piece) I used a hacksaw blade to cut the bushing sleeve and then punch it out.
As for the install, freeze the new studs/bushings, heat the spring and axle perches and use a special tool to install. I think MAC's had the tool.
N.O.S. shackles fit best, aftermarket ones are a gamble, I ruined two of them, and had to order more, but got it done.
If your not concerned about 100% show car then use polyethelene bushings and studs made for them, you can install them with your little pinky. Much easier
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Old 07-26-2012, 08:56 AM   #3
Kube
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Default Re: Rear Spring Shackle Stud Replacement

It is important that the new studs be oversize. NOS pins were about .004" oversize. Thus, they will require the proper (press) tool.
Many guys grind them down to fit easily but that defeats the purpose of the press fit entirely. That is, to offer some resistance to the torsional twist applied to them when the spring oscillates and thereby bring (the spring) back to it's normal position.
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Old 07-26-2012, 09:02 AM   #4
Clem Clement
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Default Re: Rear Spring Shackle Stud Replacement

I used a small drill to cut out some of the rubberized canvas between the stud and the steel sleeve. Then pound the stud out. Hacksaw to cut the sleeve until I could culr up one end. Then a punch to roll up the sleeve's cut edge and force the mess out. No fun.
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Old 07-27-2012, 01:44 AM   #5
benji
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Default Re: Rear Spring Shackle Stud Replacement

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The hardest part for me was getting the metal sleeve out. I used a torch to melt the rubberized crud, then the sleeve was loosened enough to drive out with a chizle and punch. I found I couldn't drive the sleeve out by soaking with penetrating oil and pounding away-the heat was the trick.
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