Payson to Mesa: Grade %?

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mustangary

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Aug 11, 2012
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10
We are pulling our Pinnacle to Mesa, right now.. am wondering about the road from Payson into Mesa... too steep for an F250 (diesel, engine braking, etc) and this 12,000+ pound Pinnacle? Or, not an issue? Came down a 4% slope today, into Tijeras, NM... not a problem at all.  Engine held it just fine, with some gentle taps to break. Steeper below Payson into Mesa, or about the same?
 
I think you'll find 4-5%ers any way you go down into the valley from NE AZ. Payson to Mesa via the Beeline (87), is the most direct route. I haven't taken that way in a year or so, but from what I recall, the decent is a lot longer on 87 than it is on 17. That should mean less steep... but spread out over longer. The major decent on the 17 is only spread out over 3-4 miles.


Mylo
 
On a side question, mustangary,  since you have a F250 diesel pulling a Pinnacle. I do not have a 5w yet. Still looking. I had discounted the Jayco Pinnacle thinking that it was too much trailer for my truck. The smallest Jayco Pinnacle is 321 RLTS with a dry hitch weight of 2200 lbs. By the time I add stuff, most likely the hitch weight will be around 2,800 lbs. My payload max per sticker on the F250 door is 1,990. When I add the DW, my doggies ice chest, etc., I will be well over 1,000 than max for my truck. The 6% grades for over 15 miles in Cloudcroft NM scare me.  You seem to have no problem. Perhaps it is because my truck is 4W drive with many options, its max payload is lower than yours. Thank you for sharing your experience.
Joe
 
Yes, hear you.  I worked on this a lot... with my Jayco dealer assuring me the Pinnacle could be handled will with the F250.. I ran into the same thing, the GVWR seemingly lacking (mine is also 4-wheel drive, lots of accessories.. ).  So, researched it, and discovered that the F350, with its greater GVWR rating, gets it mainly from the rear spring ratings.  So, solved the problem with air (bags) suspension.  Now, having said that, the F350 also has a somewhat heavier duty master cylinder arrangement... so, perhaps a bit more braking capacity... but, both trucks ar 
 
There are two of several 6% grades between Payson and Mesa.  Coming out of Payson, there is about 8 miles of downhill at maybe 4%, then there is  a short curvy section of downhill at about 6%.  You  will have two long climbs at about 6% grade.  The road is in excellent condition.  I don't believe you will have any problem with it.

Also if you are coming into Payson on highway 260, there is a section of 260 that is downhill for about 6 miles at 6%.
 
Thanks... much appreciated.  We are in Payson right now.. negotiated the 6% grades on the way in here just fine... really like the "haul/tow" feature on the 250.  Barely touched the brakes, once the engine braking started... kept it right at 45-50 or so, with only slight touches of the brakes as needed. 

So, onto Mesa tomorrow... and, am expecting it will work just fine! 
 
jks said:
On a side question, mustangary,  since you have a F250 diesel pulling a Pinnacle. I do not have a 5w yet. Still looking. I had discounted the Jayco Pinnacle thinking that it was too much trailer for my truck. The smallest Jayco Pinnacle is 321 RLTS with a dry hitch weight of 2200 lbs. By the time I add stuff, most likely the hitch weight will be around 2,800 lbs. My payload max per sticker on the F250 door is 1,990. When I add the DW, my doggies ice chest, etc., I will be well over 1,000 than max for my truck. The 6% grades for over 15 miles in Cloudcroft NM scare me.  You seem to have no problem. Perhaps it is because my truck is 4W drive with many options, its max payload is lower than yours. Thank you for sharing your experience.
Joe

Joe... my internet connection went down in mid-conversation.... in any case, bottomline is:

Have the 31RKLS Pinnacle... pretty heavy pin weight, so GVWR on regularly springed 2012 F250 is marginal.  However, air bags...extra springs, in effect, just like the F350 has, i.e., heavier springs... which is the main source of its' higher GVWR rating.. makes it work (as a point of comparison, in case you want to go with a larger truck to pull that larger Pinnacle).  The air bags add upwards of a 1000 thousand pounds or so of capacity (springs actually rated at 5000 pounds more capacity, but would never add this much more to a F250), which is what you need to add to the rear spring capacity of a 250 in order to handle the Pinnacle. 

The thing is, after one unhooks, that truck becomes the wife's "mall" car.. so, the F250 works better... just deflate those bags to 5-10 pounds, and have the "car" back.  Tradeoffs.

Now, I realize this is not whole story.. as the F350 has a slightly different master cylinder, but, other than that, it seem essentially identical to the F250 other than the rear springs (i.e. same rear axe, I believe, and same frame, same tires and wheels, etc).  My 250 also has the snow plow package, with extra heavy duty springs in the front (more like the 50)... so, with heavier springs in the back (i.e. the air bags), it levels out nicely.

Just pulled the Pinnacle 31RKLS 1200 miles in the last 3-days with the 250, springed with the air bags, set at about 65 pounds...handles like a charm at highway speed limits.  Did about 5 miles of 6% grades outside Payson this very afternoon... handled well in the "haul/tow" mode with engine compression braking. 

Good luck with your search, decision.  I suppose the F350 would work a tad better, but the F250 does the job, too, with some help!! 
 
jks said:
On a side question, mustangary,  since you have a F250 diesel pulling a Pinnacle. I do not have a 5w yet. Still looking. I had discounted the Jayco Pinnacle thinking that it was too much trailer for my truck. The smallest Jayco Pinnacle is 321 RLTS with a dry hitch weight of 2200 lbs. By the time I add stuff, most likely the hitch weight will be around 2,800 lbs. My payload max per sticker on the F250 door is 1,990. When I add the DW, my doggies ice chest, etc., I will be well over 1,000 than max for my truck. The 6% grades for over 15 miles in Cloudcroft NM scare me.  You seem to have no problem. Perhaps it is because my truck is 4W drive with many options, its max payload is lower than yours. Thank you for sharing your experience.
Joe

Bottomline:  The F250 works just fine (as augmented with 1000# plus capacity in the back with air bag springs... afterall, the "big rigs" also do this) with the 31 RLTS (I mispoke earlier, calling it an RKLS) Pinnacle.  If you go with a larger Pinnacle, I would probably go to a 1-ton truck (the F350), and, also, put the air bags on it.  I really like the air bag "springs" for being able to adjust to whatever load is on the back.  In fact, I carry an old carpenter level, and whatever load I have back there, adjust the air bag springs pressure accordingly (with my remote control... pretty slick!).

Hope this helps.

Gary
 
Thank you very much for your insight Gary. This really helps. Since this is my first 5W. I think I am going to shoot for something with a dry hitch weight of around 1,200 lbs. I will also look into  airbags. I had ordered my F250 with the camper package, so the rear is beefed up just a little. The anti-sway bar and the overload spring in the back of the F250 was my main reason to order it that way. The 350 was too rough for the wifey.
Joe
 
6-7% are fairly standard grades in Idaho. I've got a few that are better than 16% out here.  :p

No problems dragging wood trailers or the RV up down some of the steep mountain roads out here. Diesel engines make a world of difference.  8)
 

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