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Why does my truck follow the road crown - Here are my alignment #'ers

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Old Apr 3, 2011 | 01:59 PM
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Default Why does my truck follow the road crown - Here are my alignment #'ers

2006 Dodge Dakota
TRX4
AWD (yes, awd)
20,000 miles

When going down the road. In the right lane it will pull right. In the left lane, it will pull left. It will track straight when level. And I'm not talking about a slight pull. I'm talking within 1-2 seconds I'll be off the road. My dads dakota does NOT do this.

Here are my alignment numbers:

Front Camber: Left:-0.5, Right -0.3
Front Caster: Left:3.3, Right 3.7
Front Toe: Left:0.09, Right0.011
Cross Camber:-0.2
Cross Caster:-0.4
Total Toe:0.20

Thrust Angle:-0.06

Notes:
- Tires have been changed and no difference
- It also does it in neutral, so that rules out the AWD system pulling right, etc
- I know the truck will follow the crown in the road maybe slightly, but I've gotta hold the steering wheel crooked at 10 and 2 o'clock most times.

Ideas? How do my alignment numbers look.
 
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Old Apr 3, 2011 | 02:52 PM
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FrenicX
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Is your father's an AWD? I heard that AWD daks will do this unfortunately, by design. Not sure why though. Someone here might be able to shed some light on it.

FWD cars tend to pull harder due to the crowning aswell from my experience, so it could just track strong since your steer tires are also drive tires.

Edit: Nvm. I read on.
 
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Old Apr 3, 2011 | 03:05 PM
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FrenicX
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I don't know much about the alignment numbers. But here is a website that explains what they all are for and what effects you get with negative/positive numbers in the different areas.
http://www.ozebiz.com.au/racetech/theory/align.html
 
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Old Apr 3, 2011 | 04:32 PM
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hendrixx324
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those numbers dont look bad... it shoudnt effect it as much as you say. this may be stupid queston but did you check your tire pressure? also how is your front end... ball joints, tie rods, etc... and does it do it on all road crown or just a road that you drive on every day
 
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Old Apr 3, 2011 | 06:38 PM
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jnjinfla
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You got some decent answers the first time you asked this question in your other post. I gave you a very plausible answer as to why your truck would pull even with perfect alignment. You need to look at the link I posted in that thread, look over the information and do a search for a dealer that has that machine in your area. Here is the original post.

https://dodgeforum.com/forum/3rd-gen...the-tires.html


Look for the reply I provided. It is the last one. There was a dealer in my little town that had it and charged me 19.99 to have all four tires roadforced balanced and matched for pull. My truck is perfectly straight now.
 
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Old Apr 3, 2011 | 07:09 PM
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mezerr
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Originally Posted by hendrixx324
those numbers dont look bad... it shoudnt effect it as much as you say. this may be stupid queston but did you check your tire pressure? also how is your front end... ball joints, tie rods, etc... and does it do it on all road crown or just a road that you drive on every day
Tire pressure is all in check.

The front end was checked by the dealer. Supposedly everything is in check.

It does it on 98% of the roads I drive on, as they are all crowned.
 
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Old Apr 3, 2011 | 07:18 PM
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mezerr
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Originally Posted by jnjinfla
You got some decent answers the first time you asked this question in your other post. I gave you a very plausible answer as to why your truck would pull even with perfect alignment.
I created a new post because this is a different issue. I was mistaken in the previous thread. The truck doesn't just pull to the right, it pulls right or left depending on the road crown.

If it was a tire issue, I could get it to pull the other way by rotating the tires. I mentioned in the first thread that I rotated the tires every which way and didn't solve the issue. So your suggestion won't work. We also placed wheels and tires on it from another dakota and it pulls right and left and the other dakota doesn't. If it was a tire issue, the other dakota would do the same.

This question isn't about pulling to the right. It's about the truck always following the crown of the road, and I'm wondering why it does that if other trucks don't do it?
 
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Old Apr 3, 2011 | 08:37 PM
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rengnath
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My truck pulls slightly with the crown of the road. It always has. Im not sure that its 2 o clock, but it all depends on the road. It did it with the old Firestones and it does it with the new BFG A/Ts, and all ball joints have been replaced.
 
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Old Apr 4, 2011 | 10:01 AM
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I doubt it's the AWD because I have that on my 08 TRX and didn't notice any drastic pull from the other Dakotas I've owned. Other than the prior comments/recommendations, I don't have any other suggestions, sorry.

The one thing I DID notice when I bought this one is there's a ton of torque steer (and a considerable amount of bump steer too). Going from the 05 I had, when I hammer the throttle on this one, it didn't take long to find out that it better be pointed in the direction you want to go first. :/
 
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