Truck 1” higher on driver side - Dodge Cummins Diesel Forum
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post #1 of 28 (permalink) Old 05-13-2019, 06:38 PM Thread Starter
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Truck 1” higher on driver side

After replacing the drag link and an alignment, I just noticed the truck is 1” higher on the passenger side. I’m guessing this has to do with the alignment. Besides annoying the heck out of me, are there any wear issues I should be concerned with as I can’t get back right away to correct this issue?


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post #2 of 28 (permalink) Old 05-13-2019, 06:42 PM
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Take a look at your alignment cams. I’m willing to bet they are way off from one another.
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post #3 of 28 (permalink) Old 05-13-2019, 08:07 PM
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Originally Posted by K9Kodi View Post
Take a look at your alignment cams. Iím willing to bet they are way off from one another.
You know , funny thing. I assume you are talking abut the caster adjustment. I noticed the other day while servicing mine, the two adjustments are very different. Yet my truck good. Only 18K on it, I think I'll leave the sleeping lay.
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post #4 of 28 (permalink) Old 05-13-2019, 08:13 PM
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Well stand by but I’ll be corrected if I’m wrong but I think to be identical in adjustment they need to be mirroring? Because they adjust opposite arms from opposite sides. My truck was leaning or rather sitting tall. It did bother me cause co workers pointed it out daily. I loosened the adjusted and it was under tension, adjusted it slightly and the other side to compensate, no issues with tire wear or steering and it sits level
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post #5 of 28 (permalink) Old 05-13-2019, 10:36 PM
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I had lean after an alignment,I printed out the Thuren and CJC info and had them do it again.


• Cross caster in these trucks can induce lean. If your truck is leaning when parked on a level surface, check to make sure your adjusters are pointing in the same direction.
• If you are running a quality lift coil, and it’s installed properly (I see them installed upside down or on the wrong side frequently), but you have a lot of coil bow, you probably need to rock those caster adjusters to the rear a bit.
• Pointing the adjuster toward the rear of the truck increases caster.
http://www.cjcoffroad.com/Articles.asp?ID=258


2013+ newer radius arm truck caster notes....

The adjustment cams are backwards on these trucks, compared to the solid axle Rams from the last 20 years. The cam bolt is actually inside and moving the axle itself, while the cam washers are located by the arms, unlike previous generations. This means moving the arrow on the cam to the rear of the truck, is increasing caster degree.
There is plenty of caster adjustment on these trucks to work with up to about 3.5" of lift, even with stock arms and no radius arm pivot drops.
It is VERY important on these trucks that you don't adjust the driver and passenger side cams too far out of balance. In other words, make sure there is not much manual cross caster. If one cam is for example pointed straight down, the opposite side cam should be no more than one mark forward or back. I have seen alignment shops do some crazy things here. If you do put them far out of balance, you can get some drastic lean in the suspension. Reason being, radius arms make the front axle act like one big swaybar. With the caster cams far out of balance, it gives a similar effect as having different length swaybar links, which would force a chassis lean. If you do need a little caster bias fine tuning, which is pretty normal, loosen the upper radius arm bolts at the axle also, then re-tighten once the handling is good. This will let the axle center up as best as it can, by using slop in the hardware to help the chassis find neutral.
With our 2.5" coils, the approximate good handling cam indicator position, is about the first mark to the rear of the truck.
https://www.thurenfabrication.com/te...-handling.html
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post #6 of 28 (permalink) Old 05-13-2019, 10:54 PM Thread Starter
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Quote:
Originally Posted by 2500/6 View Post
I had lean after an alignment,I printed out the Thuren and CJC info and had them do it again.


• Cross caster in these trucks can induce lean. If your truck is leaning when parked on a level surface, check to make sure your adjusters are pointing in the same direction.
• If you are running a quality lift coil, and it’s installed properly (I see them installed upside down or on the wrong side frequently), but you have a lot of coil bow, you probably need to rock those caster adjusters to the rear a bit.
• Pointing the adjuster toward the rear of the truck increases caster.
http://www.cjcoffroad.com/Articles.asp?ID=258


2013+ newer radius arm truck caster notes....

The adjustment cams are backwards on these trucks, compared to the solid axle Rams from the last 20 years. The cam bolt is actually inside and moving the axle itself, while the cam washers are located by the arms, unlike previous generations. This means moving the arrow on the cam to the rear of the truck, is increasing caster degree.
There is plenty of caster adjustment on these trucks to work with up to about 3.5" of lift, even with stock arms and no radius arm pivot drops.
It is VERY important on these trucks that you don't adjust the driver and passenger side cams too far out of balance. In other words, make sure there is not much manual cross caster. If one cam is for example pointed straight down, the opposite side cam should be no more than one mark forward or back. I have seen alignment shops do some crazy things here. If you do put them far out of balance, you can get some drastic lean in the suspension. Reason being, radius arms make the front axle act like one big swaybar. With the caster cams far out of balance, it gives a similar effect as having different length swaybar links, which would force a chassis lean. If you do need a little caster bias fine tuning, which is pretty normal, loosen the upper radius arm bolts at the axle also, then re-tighten once the handling is good. This will let the axle center up as best as it can, by using slop in the hardware to help the chassis find neutral.
With our 2.5" coils, the approximate good handling cam indicator position, is about the first mark to the rear of the truck.
https://www.thurenfabrication.com/te...-handling.html
The passenger side cam is straight down and the drivers side is about 2 marks towards the front of the truck from the straight down position.

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post #7 of 28 (permalink) Old 05-13-2019, 11:00 PM
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2 marks isn’t terrible, usually they’re close to one or less. The leaning trucks seems to be from one cam facing forward and one backward.

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post #8 of 28 (permalink) Old 05-13-2019, 11:14 PM Thread Starter
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2 marks isn’t terrible, usually they’re close to one or less. The leaning trucks seems to be from one cam facing forward and one backward.
So Is there a way to know which side to adjust with out bringing the truck back to the shop? And can this be done at home?

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post #9 of 28 (permalink) Old 05-14-2019, 02:13 AM
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Set the one that is 2 marks forward to straight down or 12:00. Can be done in your driveway with 24 MM and 27MM/28MM???? wrenches or sockets!!!

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post #10 of 28 (permalink) Old 05-14-2019, 06:43 AM Thread Starter
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Originally Posted by SRich12 View Post
Set the one that is 2 marks forward to straight down or 12:00. Can be done in your driveway with 24 MM and 27MM/28MM???? wrenches or sockets!!!
Can anyone describe to me how to do this?

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post #11 of 28 (permalink) Old 05-14-2019, 07:45 AM
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Yes, loosen the nut, do not take it off. Only need a little bit of reversal on the nut. The head of the bolt is keyed into the adjusting washer so as you turn the bolt it adjusts the key. Put a big ol crows foot on the bolt, get the adjuster where you want it, hold it there and tighten the ens out of the nut. I would mark the spot it was at first Incase you need to reverse what you did
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post #12 of 28 (permalink) Old 05-14-2019, 07:53 AM
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This actually a pretty cool stupid video on caster for those who don’t understand

https://m.youtube.com/watch?v=t76BVhtBMnE

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