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Installed RK 2.5 flex and looking for input on alignment Specs

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Old Mar 21, 2013 | 02:01 PM
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Default Installed RK 2.5 flex and looking for input on alignment Specs

So I got my lift on and took it in to get my alignment specs checked. Looks like I am good. Any input would be great. Thanks.
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Old Mar 21, 2013 | 02:06 PM
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Caster looks a bit high. RK recommends 4.2 to 4.7. You are closer to 6. That will help will flightiness but too much caster can cause driveline vibrations and in bad cases, those vibrations can explode your transfer case.

I think 5.9 is ok but I would try and get it closer to 4.5.
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Old Mar 21, 2013 | 02:23 PM
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Shit I was hoping I was done. Any idea on how much of an adjustment effects caster. Meaning how many turns per degree? Also would I exstend or shorten the arms to effect caster? Thanks for the help.
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Old Mar 21, 2013 | 02:30 PM
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No clue on how many turns per degree of caster. You can either shorten your lowers or lengthen your uppers. The lowers are much easier to do.
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Old Mar 21, 2013 | 02:37 PM
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Lots of people run caster over 6 degrees and don't have issues. Only reason why I got mine to within RK specs was the fear of having some major driveline issue.

Take it out for a nice ride and see if you have any vibrations at all. If not, you are probably fine.
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Old Mar 21, 2013 | 07:54 PM
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Originally Posted by Learo2000GT
So I got my lift on and took it in to get my alignment specs checked. Looks like I am good. Any input would be great. Thanks.
Your good to go if you don't have any drive shaft vibrations. The more caster makes it track better I have mine at 6.1 degrees
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Old Mar 29, 2013 | 12:34 PM
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So it drives great. Better then stock. Straight as an arrow and tight. Should I mess with it? Don't want transfer case issues. Thanks for all the help.
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Old Mar 29, 2013 | 01:22 PM
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I'm running about 5.5 and it drives great. I would leave it alone myself.
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Old Mar 29, 2013 | 01:50 PM
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If it drives good and there are no vibrations, I say your good to go.
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Old Mar 30, 2013 | 05:58 AM
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Thanks all. I will leave as is and move on to next project.
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