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Old 02-21-2014, 01:05 PM   #11
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Hmm, will try that once I get the coach back frm the dealer.
hopefully I can get FR to cover the alignment and minimize some of this....

thanks for the tips to both of you, points me in the right direction, I was just wondering since I'm about to invest some $ into and want to make sure I do wissely.

my style of driving is the same as some of you, betwn 55-60 and try to keep a calm ride for the fam to enjoy but I notice more things everythime I drive it so I gotta ask
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Old 02-21-2014, 01:08 PM   #12
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+1, could need more positive caster. Take the coach to a big parking lot. Turn the wheels all the way to one side. Start driving forward without touching the steering wheel. The coach should slowly start turning the wheels all the way until they are straight.
I would venture, that the wheels should be straight ahead within 30'-50' when you do this exercise. You can always ask the alignment shop to add 1/4 to 1/2 more than the spec or at least set it to the upper limit of the spec. With power steering, the steering wheel effort will be negligible if noticeable at all.
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Old 03-17-2014, 08:57 PM   #13
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Caster adjustment

How can you adjust caster with a solid front axle? I have a 2013 378xl and would love to be able to set it more positive, thanks.
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Old 03-17-2014, 09:04 PM   #14
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On Solid axles you can adjust camber or caster with offset king pin busings.

On rare occasions camber can also be set by heating and bending the axle
But not very common.

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Old 03-17-2014, 09:26 PM   #15
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You can do caster with wedges too, some frown on it though. Or longer or shorter shackles. Or new springs may be in order, as the original ones may have sagged

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Old 03-17-2014, 09:32 PM   #16
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You can do caster with wedges too, some frown on it though. Or longer or shorter shackles. Or new springs may be in order, as the original ones may have sagged

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X2 on the wedges and spring shackles.
On our 1st super modified, we used a single cross spring and twin radius rods to hold the rh side of the axle and a single radius rod on the lh side. Could change the caster by changing the length of the upper or lower rh radius rods.
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Old 03-17-2014, 09:40 PM   #17
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Wow!! Oc actually agreed with me on somethin!!
Can u believe it turbs?


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Old 03-20-2014, 04:35 PM   #18
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On Solid axles you can adjust camber or caster with offset king pin busings.

On rare occasions camber can also be set by heating and bending the axle
But not very common.

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Do you have a manufacturer for the offset bushings? All the heavy vehicle alignment shops I have contacted around here have never heard of them and don't know where to get them, thanks.

Mickey
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Old 03-20-2014, 04:40 PM   #19
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The shop we use used shims.
After adjustment the steering wheel centered out correctly
Before the steering wheel was cocked at least 30*
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Old 03-20-2014, 04:50 PM   #20
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Do you have a manufacturer for the offset bushings? All the heavy vehicle alignment shops I have contacted around here have never heard of them and don't know where to get them, thanks.

Mickey
X2 Mickey. Don't know how you would install an offset kingpin without having vertical movement of the spindle. Dem Iowegians may have a way to do it tho'.
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