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07:35:07 - 04/19/2024
General Dakota Board
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Dan M
Dodge Dakota
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11/19/2007
02:00:15
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 Subject: drive angles
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Message:
So I went fishing this past weekend for trout in the lovely GA mountains. I decided to take a different road in the area to take me a shorter way to another section of a particular creek I wanted to fish.
After about a mile in on a narrow (barely wide enough for my dakota to fit, occassionally scraping branches, etc against my mirrors) dirt/gravel road I came across a rather deep hole that covered about 1/2 of the road. Being alone, no winch, no cell phone server and not sure exactly how deep the hole was, I opted to back up to an area where I thought I could turn around. The hole was about 18" deep from top to the water level and not knowing how much water was in it, I couldn't judge the depth of the hole.
A wrangler may have been able to make it, but i am not sure it would not have taken some body damage on the side.
This got me thinking, what is the approach and departure angles a stock dakota is rated for? What about a hill grade? Ground clearance? Does anyone know this?
Mine is 02 QC 4x4. Also, what about one with a 3" ranch lift kit? How does a lift kit affect driving across a hill vs driving up/down one.
- Dan M
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miltonwaddums
Dodge Dakota
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11/19/2007
12:46:50
| RE: drive angles
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Message:
Hey Dan,
My take on your question...
I think it would be pretty easy to measure. Take the point of where the tire touches the ground (front of the contact patch). Then measure how high the point of impact would be and how far in front of the tire contact patch is (most likely the bottom of the air dam). Give yourself an inch of suspension compression to be safe, and then its a simple trig problem. Your equation will be:
Angle=arctan(height of bottom of air dam/level distance from front of contact patch to bottom of air dam)
Obviously, tire diameter and air pressure come in to play, along with how "hard" you hit the obstacle. The lift kit will help you out the most.
Maybe tonight I'll go outside and take a picture to try to illustrate my jibberish.
Jay
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Kowalski
GenIII
11/19/2007
12:57:00
| RE: drive angles
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Message:
Sure, or you could just put a board from the impact point to the bottom of the tire and measure the angle directly against flat ground with a carpenter's speed square. Ground cleareance is also easy to measure directly. More than this to consider though; going through water that deep could get water into your differentials.
Lead, follow, or get out of the way
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