Caster correcting swivel balls - Defender Source
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  #1  
Old February 12th, 2016, 08:45 AM
ezzzzzzz
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Mark Garrenton
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Caster correcting swivel balls

I'm nearly up and running for swivel ball caster correction. This fixes this issue without hindering pinion angle created when using corrected radius arms. The jig was fabbed from .5" plate steel and DOM A513 tubing to less than .003" tolerances in my machine shop. On this first ball I noted that the mating flange was .012" out of surface flatness. This is not a serious issue but it does mean that each ball must be checked and the opposing plunge cuts for the anti-rotation inserts must be setup individually if this occurs. The .25" x .6875" inserts, machined from DOM material, will fit into the opposing holes to prevent the ball from physically rotating under heavy braking. It is an added benefit although proper torquing and use of blue locktite of the hardware should preclude this possibility from happening. The holes are elongated to provide 3.5 degrees of rotation. This is a happy medium between a 2" and 3" lift. More correction is possible for taller lifts but the insert would have to be enlarged for full 360 degree contact. Even a tall lift would benefit from some castor correction.
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  #2  
Old February 12th, 2016, 08:53 AM
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rdavisinva
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Robert Davis
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This should create a run in Lift Kits with a sell out after seeing this.
It might be worse than bread and milk at the local grocers due to an up-coming snow storm.

EXCELLENT WORK!
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  #3  
Old February 12th, 2016, 03:13 PM
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Jeff Payne
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Quote:
Originally Posted by rdavisinva View Post
This should create a run in Lift Kits with a sell out after seeing this. It might be worse than bread and milk at the local grocers due to an up-coming snow storm. EXCELLENT WORK!
Would you be willing to garrentontee this statement?
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  #4  
Old February 18th, 2016, 03:17 PM
ezzzzzzz
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Mark Garrenton
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I finished playing with my scrap swivel ball. I machined A513 dom anti-rotation inserts and inserted them. I like the finished ID of the dom but it cuts crappy in the lathe. Considering that the insert is captured I'm going to use 4130 round stock which turns much better but I'll have to drill the center hole. I finished off the flange surface with a mill end to eliminate the .012 disparity mentioned earlier but see no use in doing these as a standard practice. A flycutter would have produced a nicer finish too. Anyone interested in the service can contact me.
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__________________
I need to go back to work for the break. Retirement is exhausting!

'71 IIA 88" LS1 hybrid
'84 110 5 door 'Nigerian Princess'
'90 RRC
'97 D1 LSE (parting out)
'02 D2 Kalahari
'02 D2 SE
'02 D2 SE
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