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Old 06-21-2012, 09:44 AM   #1
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Trivial or not so trivial

We were set on finding a 5er that weighed about 8500lbs loaded for pulling. That would spec at about 75% of the tow capacity of the truck. If we go to 9000lbs loaded we spec around the 80% mark. Payload capacity is around 60%. Other than lower gas mileage, would the towing characteristics be significantly changed? The truck is a F150 Eco with Max Tow and HD Payload options.
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Old 06-21-2012, 10:04 AM   #2
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Originally Posted by Doering
We were set on finding a 5er that weighed about 8500lbs loaded for pulling. That would spec at about 75% of the tow capacity of the truck. If we go to 9000lbs loaded we spec around the 80% mark. Payload capacity is around 60%. Other than lower gas mileage, would the towing characteristics be significantly changed? The truck is a F150 Eco with Max Tow and HD Payload options.
I run at 95% capacity but I also don't live in or travel through the (hills).
Fuel mileage I chalk up to (rv-ing).
My unit pulls just as good if not better than my tt at which I was only at 65% capacity.
Slow down sooner take of slower.

When the dw pulls the rig I stick a post it on the dash (slow and wide)
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Old 06-21-2012, 10:48 AM   #3
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I think a lot depends on what the shape of the front nose cap is. I went from pulling an 11,000# Copper Canyon to pulling a 14,000# Sandpiper and the Sandpiper pulls better at higher speeds.
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Old 06-21-2012, 01:39 PM   #4
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I think a lot depends on what the shape of the front nose cap is. I went from pulling an 11,000# Copper Canyon to pulling a 14,000# Sandpiper and the Sandpiper pulls better at higher speeds.
Ah, yes I never thought about that aspect. Some caps certainly look more aerodynamic than others. I don't see many setups using the wind deflectors either. Would probably help many tow vehicles!
Came across this site:
RV Fuel Savings Guide
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Old 06-21-2012, 04:04 PM   #5
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With what you discribe you will be near or over 100% for the TV. At 9,000 lbs times 20% for pin weight or 1,800 lbs, what is the limit on the TV? Ready to go what does the TV weight? Add the pin weight and you see what I am saying. My 5er with a limit of 9,950 lbs, 2012 V-Cross 275, should not be pulled with a 1/2 ton pickup, even though Forest River states that it is 1/2 ton towable.
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Old 06-21-2012, 04:23 PM   #6
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I think you should be thinking about pin weight and payload capacity too.
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Old 06-21-2012, 04:25 PM   #7
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With what you discribe you will be near or over 100% for the TV. At 9,000 lbs times 20% for pin weight or 1,800 lbs, what is the limit on the TV? Ready to go what does the TV weight? Add the pin weight and you see what I am saying. My 5er with a limit of 9,950 lbs, 2012 V-Cross 275, should not be pulled with a 1/2 ton pickup, even though Forest River states that it is 1/2 ton towable.
Hi,
The TV max tow is 11,300lbs. The truck is on order. A comparable truck will come in around 6,000lbs. The GCVW rating is 17,100lbs. Payload capacity is 2,600lbs.
Are you adding the pin weight to the trailer weight to determine % of Max Tow for the TV???? Pin weight is part of the payload capacity.
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Old 06-21-2012, 10:57 PM   #8
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Remember that the "Max Tow" F-150 is not a 1/2T truck in any respect. It is a 3/4T in 1/2T badging, or a "heavy half" at best.

What gets me is, to have a 2600lb payload, I would imagine you would need heavier rated axles. Now, since the standard half ton axles are in the 3900lb rating, and average payload is in the 1400 range, I would think you would need at least 4500-5k rated RA and a higher weight FA to achieve that. At what point would you just stop calling it a 1/2? It already has 3/4T if not 1T axles...

So, since I am having trouble finding a good source for the GAWR on a max tow F150, if you are still running <4k lb axles, how can you put >2k lbs on them and not be overloaded?
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Old 06-22-2012, 07:44 AM   #9
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Remember that the "Max Tow" F-150 is not a 1/2T truck in any respect. It is a 3/4T in 1/2T badging, or a "heavy half" at best.

What gets me is, to have a 2600lb payload, I would imagine you would need heavier rated axles. Now, since the standard half ton axles are in the 3900lb rating, and average payload is in the 1400 range, I would think you would need at least 4500-5k rated RA and a higher weight FA to achieve that. At what point would you just stop calling it a 1/2? It already has 3/4T if not 1T axles...

So, since I am having trouble finding a good source for the GAWR on a max tow F150, if you are still running <4k lb axles, how can you put >2k lbs on them and not be overloaded?
Quite right you are! While I'm not concerned at ever coming near the max payload, if I can't get the info from the dealer, I'll get the numbers off the truck. I should have the truck in the next couple of weeks if all is on schedule.
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Old 06-22-2012, 09:04 AM   #10
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Three words, rear axle bearings. Ford and all of them sell parts and lots of them. Go to a parts store and see for yourself just how big a half-ton rear axle bearing is. And your going to put how much weight on it?

I see lots of half-tons with big RV's, I don't know.
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