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Old 04-24-2013, 10:22 AM   #11
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There's no way I can improve on the info already provided but I'll provide a couple of things I've noticed.
My hitch (dealer installed) needed tightening after a couple of outings.
Our TV (Ford Explorer) is well enough matched to our light-weight trailer and is pretty content to cruise along at 60mph (my target speed) and ANY mpg over 9.5 I consider to be "good".
2x on your plan to hit the scales. I knew that I was within my load range and my TT was ballanced but after visiting the CAT, I KNEW I was in range and ballanced.
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Old 04-24-2013, 06:44 PM   #12
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You are considered to be legal and safe to tow at 100% of your GCWR. You will find many folks on this and other forums who think you will probably be happier to be at 80 to 85% of GCWR. If you travel mostly in the flatlands you will probably be ok. IMHO, get into the hills and mountains and your truck will work hard for its living.
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Old 04-25-2013, 08:16 AM   #13
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Total cargo weight is determined with a 150 lb driver and empty truck... soo remember to add the weight of all the passengers and other cargo you add.
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Old 04-25-2013, 06:26 PM   #14
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Just checked the TT tires. They are Grand Ride Power Towing tires, ST205/75R14. Load range C. Maximum load of 1760 lbs at 50 PSI. No statements regarding limitations on towing speed. And, since it was cool and wet for much of our tow back from IN I was not worried about tire temps as I do when towing in W. TX in August! However, that does raise the question, for Jayco, of why put 4 tires with combined towing weight of 7,040 lbs on a TT rated to 7,500 lbs gross weight? (And, none of these wheels have wheel weights, indicating the tires are mounted without balancing.) Even if the specified tongue weight of 610 lbs transfers totally to the TV, that still appears to leave very little margin of error in terms of weight on the TT and the four tires.

I'm thinking we'll get one year of use from these tires and then replace them with something with more weight carrying capacity. And we'll also have the wheels balanced.
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Old 04-25-2013, 08:33 PM   #15
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Axles are rated at 3500# max each, so Jayco has this covered. However, I agree, a mighty slim margin. The 65 mph figure come from
Goodyear Marathon tires on lots of trailers. I was a little unhappy going from my 26BH with 15 inch tires to the 14 inch ones on the White Hawk. Don't know why they decided on the 14 inchers. Smaller rims and smaller tires probably saves a few bucks. Maybe they handle better with the wider axle spacing. I will try to get Maxxis tires for the next set.
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Old 04-27-2013, 01:00 AM   #16
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Quote:
Originally Posted by mikmurphy View Post
snip.... However, that does raise the question, for Jayco, of why put 4 tires with combined towing weight of 7,040 lbs on a TT rated to 7,500 lbs gross weight? .....snip
Mike,

Your correct, Jayco (and most other RV manufactures) size/load range the tires based on the TV carrying the tongue weight, cutting it to close for me as well...., one big reason I went from a "C" to an "E" tire on my TT..

Bob
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Old 04-29-2013, 03:30 PM   #17
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After thinking about this more, I decided NOT to wait to upgrade from a load range C tire to the next load range, D. I will be towing this rig across west TX in August, and don't want to be thinking about the tires being marginal when highway surface temperatures will likely be over 130F. However, finding a 14" load range D trailer tire has proven problematic. The only one I've found is a Kumho, and I've requested that our local Discount Tire order 4 and let me know when they arrive. I'll use the original tires on another trailer I have that has 14" tires. Other White Hawk owners, you might want to check the tires provided on your trailer and ponder the math and your situation. ...
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Old 04-30-2013, 03:17 PM   #18
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I sent an email to Jayco's Customer service on the tire issue yesterday:

I received a call earlier today from Joe Ehlers with Jayco in Middlebury, he wanted to respond to my comments.

He said that at Jayco they use 13% as the figure when calculating the tongue weight of a fully loaded trailer; and presume this transfers all to the TV. In this case, 13% of the fully loaded White Hawk at 7,500 lbs will be 975 lbs; and transferred to the TV. Using his premise, 7,500 lbs less the 975 transfer yields 6525 lbs on the TT, within the range of the load C tires which at 1760 each totals 7040, allowing in their view a margin of 515 lbs.

So, that's their reasoning for the stock tires on the White Hawk. I told Joe I still intended to replace the load range c tires with new d tires, just for my peace of mind when traveling west this summer. Fortunately, I have some other utility trailers on the ranch, so I can use the load c tires on them.
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Old 05-06-2013, 11:18 AM   #19
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The tires that Discount Tire finally found for me are Goodyear tires made specifically for UHaul, manufactured in Canada. They are load range D, each tire rated to 2000 lbs. They were $110 each before taxes, etc. I'll feel better when hauling our trailer this summer across TX knowing we're well within parameters on the tires.
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Old 05-06-2013, 06:52 PM   #20
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Thanks for the info mikmurphy, are these Marathon ST tires?
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