CASTER 6 or 5.5???

drvn

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I took my caster from 5 to 6.5 and it took care of the wandering. Now I have a pretty hard pull to the left. I spun both uppers the same number of turns. I had my alignment checked before and after. The caster is where I want it but now my thrust angle is off? Assuming that's what is causing the pull. Why would adding caster cause that?
I want others more knowledgeable than me to weigh in but have read to leave passenger side a little less. Let’s say 6.5 drivers and 6.4 passenger. Seems to assist road crown differences.
Agree with above. Hopefully, others more knowledgeable will chime in. Mine was set by a dedicated alignment shop at 6.9 drivers and 6.5 passenger. No def pull is noticeable. Tracks very straight.





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hoag4147

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This pull is opposite of the road crown. After the adjustment the thrust angle is out. The only thing I can think of is maybe my track bar is binding and pulling the axle?
Sorry. I actually meant the other way. Set arms on passenger side like 1/8 longer.
 

SilverRubi

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Sorry. I actually meant the other way. Set arms on passenger side like 1/8 longer.
Wouldn't setting the arms on the passenger side longer make the pull to the left worse?
 

hoag4147

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StingJLUR

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Yes, that is likely the cause of your wandering. Need to shorten up the uppers or lengthen the lower control arms. (Or combo of both)
Got my caster adjusted today. Man does it drive so much better! These are my new specs. I asked them to get it at 6, but I said a little higher was ok. Is this too much caster now?

E6EC8617-2AF3-43F3-9AEA-7D68A1F42433.jpeg
 

jmcdtucson

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Got my caster adjusted today. Man does it drive so much better! These are my new specs. I asked them to get it at 6, but I said a little higher was ok. Is this too much caster now?
Mine's at 6 no problem. Lots of people reporting 7 or 7.5 is even better.
 

MarkY3130

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Got my caster adjusted today. Man does it drive so much better! These are my new specs. I asked them to get it at 6, but I said a little higher was ok. Is this too much caster now?

E6EC8617-2AF3-43F3-9AEA-7D68A1F42433.jpeg
I wouldn’t go any higher but that should be fine as long as you keep your FAD operational. Switching to a one piece axle shaft could make it a problem. (Maybe)
 

StingJLUR

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I wouldn’t go any higher but that should be fine as long as you keep your FAD operational. Switching to a one piece axle shaft could make it a problem. (Maybe)
Thanks! Any issue with it being a .5 difference from one side to the other?
 

MarkY3130

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As long as it drives straight I wouldn't worry too much. Setting them different can help offset the effects of road crown. Also manufacturing variances can cause discrepancies in the mounts, in the adjustment in the arms, etc. Its usually a little closer than .5 but again, if it drives nice it may not be worth the effort
 

StingJLUR

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As long as it drives straight I wouldn't worry too much. Setting them different can help offset the effects of road crown. Also manufacturing variances can cause discrepancies in the mounts, in the adjustment in the arms, etc. Its usually a little closer than .5 but again, if it drives nice it may not be worth the effort
I am heading out camping this weekend so I will have a nice long drive to test it out. Would it pull left or right with the way my caster is?
 

StingJLUR

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I am heading out camping this weekend so I will have a nice long drive to test it out. Would it pull left or right with the way my caster is?
The fun continues...So after the alignment the wandering is definitely better, but I seem to have a slight pull to the left. Also I just noticed that my steering stabilizer is now making contact with my track bar jam nut when turning to the passenger side. Could this be caused by the added caster? Also I just noticed that my drag link seems to be loose after this alignment. This thing is constantly fighting me. Any advice would be appreciated.
 

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