315+ 3.73= 605??
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Joined: May 2003
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From: new york, where else?
315+ 3.73= 605??
Brought truck to dealer for other issues, and i want my speedo re calibrated. I remember seeing on these boards that the correct # is 605 RPM. My question is.... is that for 3.73, or 4.11
TY in advance
TY in advance
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Joined: Sep 2004
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From: South Fork, Colorado
BFGoodrich's site says 601RPM's at 45mph. 4.11's wont make the tire spin more than the 3.73. they will just make the diff spin more for each turn of the tire, to keep the R's up with a lower ratio
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Joined: Aug 2004
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From: Houston, TX
I used the 605 rpm for my 315s, I have verified this with GPS and many distance checks. It is very accurate at any point we have checked so far. Either number is going to be close, many things will vary actual circumference on the ground slightly.
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