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Im going for a 3 inch lift on 35's. I have ordered a return to center steering damper and -25 offset beadlocks. I need some info on castor correction.. would 2 deg. Bushes from ome be sufficient? Are corrected radius arms a must? Can i just go with the stock radius arms and drop boxes? Thanks in advance for your genuine help.

Chris.
Malta
 

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nissan
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Standard arms with drop boxes are the best way to fix the caster issue. If you fit drop boxes you dont need caster correction bushes and can keep using standard bushes
I hope this helps
 

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GUII ZD30DI Wgn
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Check legality of drop boxes where you are. I've had a 3" lift for many years and only have 2 degree caster bushes, contrary to popular opinion I've had no issues, It appears that Superior Engineering sell 3 degree bushes, have not followed that up, but if they do I will fit them when replacement time comes.
 

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The legalities of various methods of castor correction seems to be continually debated and drop boxes seem to get the worst rap in this regard despite the fact they often do the best job. There is much debate over whether they are legal without an engineer's mod plate. Some will say the same requirement for a mod plate applies to any mod that changes the steering geometry from what can be achieved with factory parts and this will include altered radius arms, castor bushes and offset king pin bearings. The reality is that all of this gets ignored by the authorities until the car is involved in a fatal accident. At that time everything is examined with the proverbial microscope and you will be notified about anything determined to be less than 100% legal but there is no real fallout unless the mods were considered to contribute towards the accident. Some suspension modifiers provide an engineers statement with the goods that their products will meet or exceed all safety requirements when used under the conditions they were designed for but this does not meet the legal requirements of a mod plate which not only says the product is OK but it has been installed in a suitable manner.

One comment I've heard about the 3 degree castor bushes is they have a high failure rate because there is very little rubber on one side of the bush insert. Having said that I'd say that all offset bushes probably have a higher failure rate than factory bushes but my OME offset bushes are 10 years old and doing OK.

IMO the best solution for a 3" lift are low profile drop boxes. They may not be entirely legal without a mod plate but according to the engineer I used to use, nor are any of the other solutions.
 

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GUII ZD30DI Wgn
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The legalities of various methods of castor correction seems to be continually debated and drop boxes seem to get the worst rap in this regard despite the fact they often do the best job. There is much debate over whether they are legal without an engineer's mod plate. Some will say the same requirement for a mod plate applies to any mod that changes the steering geometry from what can be achieved with factory parts and this will include altered radius arms, castor bushes and offset king pin bearings. The reality is that all of this gets ignored by the authorities until the car is involved in a fatal accident. At that time everything is examined with the proverbial microscope and you will be notified about anything determined to be less than 100% legal but there is no real fallout unless the mods were considered to contribute towards the accident. Some suspension modifiers provide an engineers statement with the goods that their products will meet or exceed all safety requirements when used under the conditions they were designed for but this does not meet the legal requirements of a mod plate which not only says the product is OK but it has been installed in a suitable manner.

One comment I've heard about the 3 degree castor bushes is they have a high failure rate because there is very little rubber on one side of the bush insert. Having said that I'd say that all offset bushes probably have a higher failure rate than factory bushes but my OME bushes are 10 years old and doing OK.

IMO the best solution for a 3" lift are low profile drop boxes. They may not be entirely legal without a mod plate but according to the engineer I used to use, nor are any of the other solutions.
Just on the note of how long offset bushes last, my 2 degree bushes are something like 7-8 years old and still in excellent condition, OK I do not go off roading every weekend, if I did maybe things would be different and maybe I would look at it a bit differently, but, I do go off roading, I do spend a lot of long trips 'off the beaten track' and I do give them a good workout when the time comes. I don't experience wheel wobble or death wobbles because I look after all aspects of suspension, brake, wheel and tyre maintenance.
So to me it comes down to horses for courses and how much people want to spend.
 

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And another note: is there such a thing as a true 3 degree castor bush?
No idea, as I said earlier I've heard from Superior that they have a 3 degree caster bush, I mentioned this to you when you were having issues, I have not tried them but will when and if a time comes.
 

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And another note: is there such a thing as a true 3 degree castor bush?
Why would you doubt it?

 

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Why would you doubt it?
Cause I've been told by specialist...

I know they sell 3degree bushes , but are they a real true 3degree bush as they claim?

I've asked this question once before and no one had the hard evidence to answer the question..

Id be very interested if some one knows the real answer..
 

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Cause I've been told by specialist...

I know they sell 3degree bushes , but are they a real true 3degree bush as they claim?

I've asked this question once before and no one had the hard evidence to answer the question..

Id be very interested if some one knows the real answer..
Call Superior, ask the question, tell them you have heard there is no such thing as a true 3 degree, they aren't going to lie to you.
 
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