Tire Pressure/Load-Greyhawk

[rosedan]

I know your supposed to weigh and check the chart to determine your correct pressure but I'd just like to set it in the ballpark.. its going to change anyway with more or less it your tanks water/fuel. The door label says 75/front 80/rear and that will be for a full load. It's just the two of us ,not towing anything and no levelers... did anyone weigh greyhawk and have any suggestions on air pressure?

 

[Doug-JAY]

I always look at what they say on the tire themselves.
You can't go wrong doing it that way.
Tire manufacturers are required by law to mold in the recommended tire pressure on the sidewall.
I just have to get my reading glasses out lol.

Best regards,
Doug

 

[rugerguy]

Yes ,what Doug said.
There seems to be alot of disscusion about tire pressure and weight.
If your trailer and truck have the correct tires,and there should be a lable close to the tounge of the trailer or the door of the truck saying what the correct size and load rate should be,then inflate them to the max pressure when cold which is stamped on every tire.
I've never understood why anyone would run tires under inflated.

 

[Grumpy]

The sticker on the door jam that JAYCO placed there should have the max airpressure needed when fully loaded. With that said you will be much better off having the coach weighed loaded the way you normally travel and then adjust the tire pressures accordingly. JAYCO had 95 lbs for our SENECA, after I weighed it I was able to go with 85 front and 90 rear using MICHELIN'S pressure chart base on the actual weights. It made for a much softer ride. The pressure listed on the tire is the maximum pressure that tire will take, not what you have to use.

 

[ChuckD37]

I had my Greyhawk weighed, each axle, and found I was overweight. If you are over weigh, no matter what you put in the tires you are over weight. We then took every thing out of the RV, I mean every thing and tried again. According to the sticker we could only add 600 pounds back into the RV. This was after full gas, half tank water and empty Black and grey tanks. Greyhawk has a problem with that. I contacted them with the problem three times and no response. Just promises of "We will get back to you". Right now I am careful and have a good TPMS that I pay attention to. The toad is always full but it can carry more that the RV can. Good Luck

 

[Msturtz]

I spoke to a Service Advisor at the local Commercial Ford dealer here that is very familiar with Ford chassis based motorhomes. He said that there is a lot of "fudge room" in the GVWR in these units. I was shocked to here that because it is a lot of work to stay within the GVWR. He has been dealing with these motorhomes for years. Tow rating doesn't have much fudge room because of the frame rail extensions.

 

[fivejackie]

My dealer, for our Redhawk, inflated the rears at 95 and the fronts at 65. This gives a better ride.

 

[rosedan]

that is weird your overweight empty.. it looks like the greyhawk is 7,000+ and you can load 7000+ more ??

Your sticker says you can only add 700lbs?? should be 7,000lbs. something with yours is wrong.

 

[Trippers]

The Greyhawk uses Load Range E tires. LR E max (stamped on the tire) pressure is 80-lbs. Simply use Jayco's recommendation on the drivers door jamb, 80 rear, 75 front. I don't know how some folks have time and a place to weigh their axles and adjust air pressure every time the tanks are emptied or full or other weight changes.

 

[Threebutchers]

View attachment 9933

that is weird your overweight empty.. it looks like the greyhawk is 7,000+ and you can load 7000+ more ??

Your sticker says you can only add 700lbs?? should be 7,000lbs. something with yours is wrong.

A full load of WATER = 700#

 

[Grumpy]

The Greyhawk uses Load Range E tires. LR E max (stamped on the tire) pressure is 80-lbs. Simply use Jayco's recommendation on the drivers door jamb, 80 rear, 75 front. I don't know how some folks have time and a place to weigh their axles and adjust air pressure every time the tanks are emptied or full or other weight changes.

You don't. You weigh it fully loaded as you would normally use it, set tire pressures based on that weight and use those pressures from there on in. If your running empty you will just have a rougher ride.

 

[Trippers]

View attachment 9933

that is weird your overweight empty.. it looks like the greyhawk is 7,000+ and you can load 7000+ more ??

Your sticker says you can only add 700lbs?? should be 7,000lbs. something with yours is wrong.

19,500-7,064=12,436.....12,436-5,000(toad)=7,436, those are the numbers and they make no sense to me

 

[Trippers]

You don't. You weigh it fully loaded as you would normally use it, set tire pressures based on that weight and use those pressures from there on in. If your running empty you will just have a rougher ride.

Now that makes sense, and safety, I totally agree.

 

[Msturtz]

This is very different than the new stickers Jayco puts on the Greyhawk. My sticker lists the following: The combined Weight of Occumpants and Cargo should never exceed 1809 lbs a full load of water equals 272 lbs
The next sticker states:
The weight of this recreation vehicle motorhome as completed at the factory with full propane tank and full engine fuel is:
12691 lbs
the GCWR of this recreation vehicle motorhome is:
22000 lbs
The sticker for the OP seems to indicate a much lower (incorrect) factory dry weight or Jayco changed their stickers.

It would be interesting to see the Ford sticker from the OP's vehicle. Ford changed the GCWR from 19,500 to 22,000 at some point which increased the towing from 5,000 to 7,500 if you have the correct Ford frame rail extensions. (Note: not the bolted on Jayco versions). Ford didn't change the GVWR as far as I know it is still 14,500 LBS.