The effect of lifts on your steering, drivetrain, etc. - Page 4 - JeepForum.com

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post #46 of 58 Old 09-18-2011, 04:16 PM
LibertyJeeper
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If your pitman arm is the same length <parallel hole to hole> then your steering radius should not change


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Originally Posted by walkerhoundvm View Post
Just keep in mind: things are never as bad as they seem. These are jeeps, built by man and any problems you come across can be solved by man - even you! Best of luck.
Looking for axles 4.10's or higher
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post #47 of 58 Old 09-18-2011, 05:48 PM Thread Starter
gojeepin
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Quote:
Originally Posted by LibertyJeeper View Post
If your pitman arm is the same length <parallel hole to hole> then your steering radius should not change
Right. My drop pitman arm was shorter and it was a very noticable change. My son's drop pitman arm from a diferent manufacturer was the same length as his stock one.

Vibration? Bump steer? Wandering? Read the article (sticky) on Steering, suspension, and driveline.
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post #48 of 58 Old 09-18-2011, 06:12 PM
skizriz
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My point is that my arm is noticeable shorter. But it will still go well into the steering stops, and beyond, putting the tires into the leaf springs (without stops adjusted).
I just have the stock power steering setup with a 4" dropped arm.
I just wonder why everybody states that you need a high steer (expensive) setup to run a SOA.
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post #49 of 58 Old 09-18-2011, 07:56 PM
LibertyJeeper
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Never heard anyone say you need a high steer. Most people do it because it is not not that expensive if you can barrow a reamer and it moves crap up higher away from obstructions.

Quote:
Originally Posted by walkerhoundvm View Post
Just keep in mind: things are never as bad as they seem. These are jeeps, built by man and any problems you come across can be solved by man - even you! Best of luck.
Looking for axles 4.10's or higher
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post #50 of 58 Old 10-22-2011, 01:14 PM Thread Starter
gojeepin
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Updated... today. Made some corrections and finally got the illustrations to look decent in PDF format.

Be patient, you'll download a PDF article... (updated 20 Oct 11)

I deleted the XPS version since I got the PDF version to look decent.

Steering and suspension basics

NOTE: If the the page appears black after the file loads, just scroll down for the image to appear.

Vibration? Bump steer? Wandering? Read the article (sticky) on Steering, suspension, and driveline.
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post #51 of 58 Old 10-23-2011, 08:33 AM
ahar9
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mine works thanks
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post #52 of 58 Old 02-25-2012, 10:12 AM Thread Starter
gojeepin
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Updated with new section on drive-line offsets to improve understanding of drive-line angles.

Be patient, you'll download a PDF article... (updated 25 Feb 12)

Steering-and-suspension-basics

Vibration? Bump steer? Wandering? Read the article (sticky) on Steering, suspension, and driveline.
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post #53 of 58 Old 02-25-2012, 10:32 AM
John87
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Quote:
Originally Posted by gojeepin View Post
Updated with new section on drive-line offsets to improve understanding of drive-line angles.

Be patient, you'll download a PDF article... (updated 25 Feb 12)

Steering-and-suspension-basics
wow, lots of info here! thanks!
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post #54 of 58 Old 02-28-2012, 10:01 AM
remmons
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Quote:
Originally Posted by gojeepin View Post
Updated with new section on drive-line offsets to improve understanding of drive-line angles.

Be patient, you'll download a PDF article... (updated 25 Feb 12)

Steering-and-suspension-basics
Very nice! Well done! I vote that this should be a sticky on all models.

Robert.

2015 Cherokee Trailhawk V6.
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post #55 of 58 Old 03-06-2012, 06:23 AM
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Very nicely done. Thanks.
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post #56 of 58 Old 06-30-2012, 11:33 AM Thread Starter
gojeepin
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UPDATED 30 Jun 12: Added driveline phasing illustration and explanation.

To aid in explaining how driveshaft angles cause a phase shift twice per rotation, I continued the thought with a new illustration and discussion.

Be patient, you'll download a PDF article... (updated 25 Feb 12)

Steering-and-suspension-basics

Vibration? Bump steer? Wandering? Read the article (sticky) on Steering, suspension, and driveline.
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post #57 of 58 Old 06-30-2012, 11:51 AM
nshefbuch
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Quote:
Originally Posted by LibertyJeeper
Never heard anyone say you need a high steer. Most people do it because it is not not that expensive if you can barrow a reamer and it moves crap up higher away from obstructions.
I think you may be mistaken. Moving the steering to the top of the tie rod hole is not high steer. When going soa yes you need high steer to have all the geometry in the correct place. Even on stock springs this is necessary. High steer means moving the steering bars above the leafs at the top of the knuckles. You can cut off the tie rod hole as it won't be used. This is a true high steer. What many do is keep the tie rod bar in stock location and add one high steer arm to the passenger knuckle and connect the drag link there. This will work also but of course the tie rod bar is susceptible to damage.

Why high steer? Any angle at all on the drag link allows for bump steer. To eliminate bump steer the drag link needs to be parallel. Steering stabilizer shocks only try to dampen it instead of fixing it. On crap setups you will see the drag link bent or "S" shaped to avoid hitting the leaf spring. This is the worst setup to do. I've seen these break pretty easy and would be scary on the road hitting a large pot hole.

Pic of high steer
Attached Thumbnails
image-837453263.jpg   image-4263509738.jpg   image-3961580171.jpg  

CJ7/SOA YJ leaf/5.3LS/t18a/d300 clock/37"Pitbull Rockers/H1's/14 bolt/d44 ARB 4.10 High Steer
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post #58 of 58 Old 06-30-2012, 12:10 PM Thread Starter
gojeepin
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UPDATED 30 Jun 12: Added driveline phasing illustration and explanation.

To aid in explaining how driveshaft angles cause a phase shift twice per rotation, I continued the thought with a new illustration and discussion.

Be patient, you'll download a PDF article... (updated 25 Feb 12)

Steering-and-suspension-basics

Thanks for the input...

Let's try to keep this thread limited to questions about, omissions in, and clarification needed in the article.


Mike

Vibration? Bump steer? Wandering? Read the article (sticky) on Steering, suspension, and driveline.
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