Caster after lift question - Ford Powerstroke Diesel Forum
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post #1 of 8 Old 04-07-2019, 05:38 PM Thread Starter
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Caster after lift question

Hello, I have a 2006 250 4x4. I put an 8” rough country 4 link lift kit on. I was wondering if there is a way to measure the caster angle with an angle finder. Also what is the recommended caster? Thanks
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post #2 of 8 Old 04-13-2019, 05:57 PM
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You’d have to measure exactly between top and bottom ball joint in knuckle. Best to get on an alignment machine. The kit should have come with eliptical or fixed offset adjusters, they all do. And the kit should include which way they are supped to be installed. Lots of kits use Same offset drilled alignment piece for 6 or 8” kit just flipped around with offset other direction. Did your kit come with instructions tha address this? Shouod have


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post #3 of 8 Old 04-14-2019, 07:04 AM Thread Starter
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My kit came with adjustable rod ends. The problem is I also added a 2” spacer below the springs. Now I don’t have enough adjustment with the rod ends to give me enough caster. I’m trying to decide the best way to correct the problem. First I have to determine how much more caster I need. Option 1, cut the lower 4 link rod (the one that has the adjustable end) and add a solid steel rod inside and lengthen them a couple inches or cut and shorten the upper 4 link arm. The fixed one.


Now before this turns into a thread about how I shouldn’t have added the spacer, I understand. If this was my daily driver I would have never done that. I drive this truck only a couple of times a month and very short distances. No highway driving.
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Last edited by White trucks matter; 04-14-2019 at 07:07 AM.
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post #4 of 8 Old 04-14-2019, 07:06 AM Thread Starter
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Also I threw away the bolt that came with the lower spacer and bought a grade 12.9 socket cap bolt and used red thread lock.
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post #5 of 8 Old 04-14-2019, 07:23 AM
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Ah I see. You tried driving it as is?


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post #6 of 8 Old 04-14-2019, 08:37 AM
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You can measure caster with a magnetic angle finder on the bottom of the knuckle. 4-5 degrees is what most straight axle vehicles spec.

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post #7 of 8 Old 04-14-2019, 09:12 AM Thread Starter
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Originally Posted by jetjock15 View Post
Ah I see. You tried driving it as is?


Yes I have. Before I maxed out the caster it was awful. It wandered all over and was wild when I hit a bump. Now I set the rod end all the way out (I left 1” of thread still inside the 4 link tube) now it’s a little better but I still think it needs more.
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post #8 of 8 Old 04-14-2019, 09:12 AM Thread Starter
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Originally Posted by 00t444e View Post
You can measure caster with a magnetic angle finder on the bottom of the knuckle. 4-5 degrees is what most straight axle vehicles spec.

Ok thank you
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