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Old 07-24-2015, 10:26 AM   #43
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Quote:
Originally Posted by Inland RV Center, In View Post
To be safe the maximum difference of weights between the front and rear axle, should be no more than 10 percent.

Andy
I was digging through threads about cat scale weights, and was hoping some clarification could be provided about this 10% rule? Does it mean that there should be no more than a 10% weight difference between the weights of front and rear TV axles? That is, when hitched with weight distribution, if the front TV axle weighs in at 3000lbs, then the rear TV axle shouldn't weigh more than 3300lbs?

Or is it that the unhitched front and rear TV weights shouldn't differ by more than 10% from the hitched front and rear TV weights? That is, if unhitched the front axle TV weight is 3000 lbs, then hitched it shouldn't be less than 2700 lbs nor more than 3300lbs? And likewise for the rear TV axle...
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Old 07-24-2015, 11:02 AM   #44
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following --good info on thread
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Old 07-24-2015, 12:14 PM   #45
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Took a trip to the CAT scales

The spread of WD weight between FF and RR axle on the tow vehicle is ideally no more than ten percent, with the bias toward the RR.

This in achieving a spread of the TW equally across the three axle sets.
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Old 07-24-2015, 12:46 PM   #46
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Just so there is no confusion, would you mind providing an example using numbers?
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Old 07-24-2015, 12:54 PM   #47
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Also, I assume FF refers to front of TV and RR to rear?
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Old 07-24-2015, 02:08 PM   #48
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Here's the weight calcs in an excel file. Formulas based on the Ron Gratz methods.

Cat Calc Sierra 2500 5-3-14.xlsx
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Old 07-26-2015, 07:50 PM   #49
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Thanks for the spreadsheet. I look forward to plugging in some numbers.
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