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09-19-2005, 02:10 PM
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#1
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Montana Master
Join Date: Apr 2005
Location: Fort Jones
Posts: 538
M.O.C. #3628
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Towing Weights
Thought this might be of interest.
The Montana is a 2001 3280RL and the weight was returning from a trip with approx 5 gal in each of the three holding tanks and approx 15 gal in the fresh water tank. The 2004 F250 is a superduty extended cab long bed with some cargo and approx 18 gals fuel. The hitch was a Reese 15K. (now RBW Lil rocker) Weight includes 2 adults and one 12lb Bichon.
My weights were;
pickup= 7,880 unhooked
trailer= 11,910 unhooked
pickup frt axle= 4,540 hooked
pickup rear axle= 5,910 hooked
pickup total = 10,330 hooked
trailer axles = 9,230 hooked
pin weight = 2,680
11,910 (total trailer) minus 9,230 (trailer axles hooked)= 2,680 Pin weight
I did not weigh the pickup axles individually hooked and unhooked to determine the amount of weight transfer to the front axles with the trailer hooked. But I would assume there is some of the pin weight transfered to the front axle?
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09-19-2005, 03:19 PM
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#2
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Montana Master
Join Date: Nov 2003
Location: Glendale
Posts: 1,219
M.O.C. #635
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When I weighed our rig, I weighed the combination and the pickup seperately. I found a very small decrease in front truck weight when hooked up. This must mean my hitch is a tiny bit aft of the rear axle center.
Anyway, I am curious how you came up with pickup and trailer weights without getting pickup axle weights. Are these actual or calculated?
Given these are all actual weights, you have a very well balanced load with 22.5% trailer weight on the pin. You should have a good ride.
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09-20-2005, 04:25 AM
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#3
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Montana Master
Join Date: Apr 2005
Location: Fort Jones
Posts: 538
M.O.C. #3628
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The neighbor has truck scales to weigh semi trucks that weren't busy. So I was able to set the trailer on the scale, unhook and move the pickup off. Then moved the trailer and unhooked to weigh the pickup. Weighed the trailer axles with the pickup just off the scale and the pickup with the trailer just off the scale (hooked of course). I just didn't think about weighing the axles individually under each condition, hooked and unhooked.
The numbers should be very accurate.
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09-20-2005, 04:06 PM
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#4
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Montana Master
Join Date: Nov 2002
Location: Oceanside
Posts: 20,028
M.O.C. #20
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Like Dave, we have a small amount (120 lbs) of weight shifted from front to back on the truck when hitched. So I think our hitch is also a slight bit aft of axle center.
Your 22.5% pinweight is a very good number, as Dave indicated. Ours is 23.0% and it tows beautifully. Very well balanced. I noticed a few other brands recently where the axles are farther forward than our Montanas. That would reduce pinweight, probably one of their selling points, but would not bode well for those things riding behind the axles.
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