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Old 11-18-2014, 08:35 PM   #11
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I have the 20" goodyear RS-A's and have been pretty satisfied. I only tow my trailer 5-6 times a year and don't want to sacrifice my ride the other 95% of the time. I was a little worried when I towed for the first time, but after the trip no issues.
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Old 11-19-2014, 07:53 AM   #12
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Thanks for the replies guys. Really helps out in the decision making.
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Old 11-23-2014, 10:03 PM   #13
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Good news! BFG now makes the All Terrain T/A tires in stock size LT LR-D, but tirerack.com has then for $261 each. Other LT choice in stock size is the is the Nitto Dura Grappler LR-E, and Discount Tire direct has them for $286.

When I do this, hopefully after the first of the year, I think I am going to change out the tires on day 1 just to be comfy.
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Old 11-24-2014, 05:14 PM   #14
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One thing to consider is the axle ratio.

I was reading on a Ram forum that the 3.55 axle with 17" wheels splits the difference between the 3.55 and the 3.92.

Supposedly, the end result is near 3.70 when you do the math in consideration of the differing tire circumferences.

That's probably why you can't get the 3.92 with 17" wheels.
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Old 11-24-2014, 05:25 PM   #15
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The tire diameter is the same for 17 or 20 inch. The sidewall is higher on the 17 compared to the 20.
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Old 11-24-2014, 05:38 PM   #16
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Quote:
Originally Posted by Happy Vibe View Post
The tire diameter is the same for 17 or 20 inch. The sidewall is higher on the 17 compared to the 20.

I don't know, the forum I was visiting had a table posted with a lot of math. If I can find it, I'll post the link.

The claim was that there is a difference in circumference.... which also supports the unavailability of 17" with 3.92.

I have 3.55 with 17" on my truck.
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Old 11-24-2014, 05:46 PM   #17
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Quote:
Originally Posted by Happy Vibe View Post
The tire diameter is the same for 17 or 20 inch. The sidewall is higher on the 17 compared to the 20.
265/70R17 vs 275/60R20.

Good difference in size.
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Old 11-24-2014, 05:55 PM   #18
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Not sure on the overall affect of the different models on your CCC, but the fact I have P20's on my 2010 Ram lowered my CCC by 50 lbs over the exact same model on the P17's, but is the same CCC as the LT 17's (according to Home | Dodge Body Builder's Guide).

Note: Yeah, I don't get it either, I would have figure the LT's to have better CCC, but that's what the specs say.

My plan is to run the P's for now, until I actually need new tires, and then swap over to LT 20's. At that time, I'll be shopping around for the best options on the market, but until then, I'm sticking with the P's since they still get me from point A to point B.
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Old 11-24-2014, 06:43 PM   #19
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When I looked at the ram configuration I was able to select the ST with 17 inch and 3.92. Maybe they only allow some models to be configured this way.
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