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Towing 4th Gen Dodge Ram Towing Questions


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Old 09-06-2012, 12:53 AM
MattGreer MattGreer is offline
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Default Tires and Towing

When spec'ing out a truck, I have the option of picking either LT265/70R or LT235/80R tires. I want to have the largest sidewall so I don't ruin my rims as easily as I hit curbs because I'm not used to driving a dually. I live in Denver, CO.

I'm calculating a difference in sidewall height of 185.5 mm vs. 188 mm. Not much of a difference as far as I can tell if I'm calculating that correctly.

When towing heavy, is it better to have a more narrow or a wider tire? I have been told that narrow tires are better for snow driving, so therefore I believe the LT235's probably would be better in Denver. But I won't be towing a 5th wheel in the snow. I hope!

Your advice is appreciated!

Thanks,
-Matt
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Old 09-06-2012, 07:37 AM
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Quote:
Originally Posted by MattGreer View Post
When spec'ing out a truck, I have the option of picking either LT265/70R or LT235/80R tires. I want to have the largest sidewall so I don't ruin my rims as easily as I hit curbs because I'm not used to driving a dually. I live in Denver, CO.

I'm calculating a difference in sidewall height of 185.5 mm vs. 188 mm. Not much of a difference as far as I can tell if I'm calculating that correctly.

When towing heavy, is it better to have a more narrow or a wider tire? I have been told that narrow tires are better for snow driving, so therefore I believe the LT235's probably would be better in Denver. But I won't be towing a 5th wheel in the snow. I hope!

Your advice is appreciated!

Thanks,
-Matt
With a dually, the tire width won't be as important as a single rear axle, just make sure there is an air gap between the sidewalls of the inner & outer tire to avoid heat issues with the sidewalls touching.

You better get use to driving it, or you will be spending a lot of time replacing tires.

Personally, I'd go with the shorter tires.
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Old 09-06-2012, 12:01 PM
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I'd go with the shorter tires as well.

It's worth a look at the manufacturer's specific tire specs as the sidewall numbers are a generalization and actual width and diameter's vary substantially between manufacturers. I've seen 31" diameter tires as little as 29.8" and some as large as 31.75" both with the same sidewall numbering, but different manufacturers.
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Old 09-08-2012, 11:10 PM
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With a dually the narrow the better because when you load it up and weigh her down the tires will squat as well and if you do not have enough gap between you run the risk of the tires rubbing and a possible blowout down the road. I had a dually as well and ran narrow tires until i started modding it and then i was running 22.5" alcoas. Also another thing on a dually is narrow is better in case of snow to much tread on the ground and you will really hate the dually in winter driving.
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Old 09-09-2012, 12:02 AM
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Quote:
Originally Posted by skinnysfd View Post
With a dually the narrow the better because when you load it up and weigh her down the tires will squat as well and if you do not have enough gap between you run the risk of the tires rubbing and a possible blowout down the road. I had a dually as well and ran narrow tires until i started modding it and then i was running 22.5" alcoas. Also another thing on a dually is narrow is better in case of snow to much tread on the ground and you will really hate the dually in winter driving.
Agree.

I drove from Newport News, VA to the western side of Michigan to pick up a wrecked 12v CTD 5 spd 4x4 3500 dually. I was in snow (very heavy at times) from Maryland to Michigan and then back down to Richmond. The temp never went above 17 deg the whole trip from Richmond on the way out down to Newport News on the way back.

I never had any issues with the tires or tracton, in fact, the only time I slipped the tires was when I had to stop for a light on a hill, and then they slipped for about 2 revs, and that was it.

Now, granted, the 4500 lb GN trailer and the 7000 truck on it probably helped on the return trip, but no truck on the way out there.

Imagine having to turn around in a field that has 2-3 ' of snow in it when you are hauling a 24' flatbed gooseneck behind you dually. I put her in 4 low, and just drove, she chewed thru the snow with no issues.

I ran the same width tires as stock, but mine were slightly taller, because that's what was on it when I got it. I also had the GM wheel cylinders on the rear axle, as it gave more braking power back there.
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Old 09-11-2012, 10:02 PM
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Quote:
Originally Posted by MattGreer View Post
When spec'ing out a truck, I have the option of picking either LT265/70R or LT235/80R tires. I want to have the largest sidewall so I don't ruin my rims as easily as I hit curbs because I'm not used to driving a dually. I live in Denver, CO.

I'm calculating a difference in sidewall height of 185.5 mm vs. 188 mm. Not much of a difference as far as I can tell if I'm calculating that correctly.

When towing heavy, is it better to have a more narrow or a wider tire? I have been told that narrow tires are better for snow driving, so therefore I believe the LT235's probably would be better in Denver. But I won't be towing a 5th wheel in the snow. I hope!

Your advice is appreciated!

Thanks,
-Matt
You know how it is here in Denver and I would suggest the narrower tire. I am sure you will be out and about and get "caught" when the weather just come in like a hurricane, and the narrower tire will handle the snow as you suggest much better. You will do just fine on your dually.
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Old 09-13-2012, 03:16 PM
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I wasn't "subscribed" to this thread (fixed in UserCP now) so I didn't see these replies. Thank you all for your advice!

-Mat
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