3rd Gen High Performance and Accessories (5.9L Only) Talk about Dodge/Cummins aftermarket products for third generation trucks here. Can include high-performance mods, or general accessories. THIS IS FOR THE 5.9L ONLY!

Who's running BFG 37X12.50's?

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Old Feb 27, 2006 | 08:48 AM
  #1  
JJHACK's Avatar
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From: Ellisras South Africa and Central Washington state
Who's running BFG 37X12.50's?

I'm needing new tires and have my eyes on these. I want to know if anyone using them has had balance issues or anyother problems at all with this tire.
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Old Feb 27, 2006 | 10:01 AM
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From: pa
what does 315 equate to
im running 315s if that helps
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Old Feb 27, 2006 | 10:24 AM
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From: State College, PA
315s equal out to 35s. Ask Dj Gaston, he has the exact size your looking for. Do you want mts or ats. I would like to go 37s but my mileage with 35s is kicking me right now and to me 35s are perfect for the stock suspened truck.
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Old Feb 27, 2006 | 10:26 AM
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From: Ellisras South Africa and Central Washington state
Off the top of my head I don't know but would guiess they are 33-34" tall

Did they balance up good without a ton of lead? Anytime you go over that 34" diameter the balance issues become much more significant. I have seen lots of lead on those bigger tires. I know two guys who have used the toyo 37X12.50's and both changed them out within a few weeks as they would not balance well and wandered all over the road at highway speeds.

Yet Another fella has them running with no problems at all. I have never heard of any problems with 35" tires on the 3rd gen dodge yet. But over that The jury seems to be out.
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Old Feb 27, 2006 | 10:37 AM
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From: Ellisras South Africa and Central Washington state
I have 4.10 axles so the 37's will help me more then the 35's do. The actual diameter of the BFG 37's is 36.2" where the Actual Diameter of the current 35"s I have is only 34.3" Adding a couple inches to the tire diameter would help my final drive ratio a little bit.

My fuel consumption went up 2+MPG when I moved from the stock tire with the 4.10s to the 35" tire. I figure conservativly that the 36.2" tire will get me a couple more MPG as well. So long as I keep the RPM's under 2000 my MPG's are about 20 on a strict highway trip. I never made it over 18MPG with the stock tires.

Oh yeah.......I did have the speedo recalibrated for the bigger tires, so it's not a calculation error.
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Old Feb 27, 2006 | 12:46 PM
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From: TX
I ran 37x12.50 BFG Mud-terrains for about 12k miles no complaints once I had them trued and balanced on the truck. Very little weight was used once the tires were shaved. I hurt me to watch brand new tires having rubber cut off. However it is supposed to make them last longer when they are running in a perfect circle. I only ran them about 12k miles so I never got to see the true longevity out of them.
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Old Feb 27, 2006 | 01:33 PM
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I have 50k on mine...

They have performed flawless. Just watch air pressure and rotate every 5-7.5k.
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Old Feb 27, 2006 | 03:35 PM
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From: Lakeview, Arkansas
I have them. They balanced out fine, and they ride great. You can expect a lot of miles out of these tires. The sidewall is not very big on a 37 inch tire when you are running a 17 inch wheel.
I think the tire size fits the truck pefectly. 35's looked too small to me. The 37's also help keep RPM's real low when in 6th gear on the highway.
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