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6.4L Power Stroke Diesel Engine fitted to 2008 - 2010 F250, F350 and F450 pickup trucks and F350 + Cab Chassis SPONSORED BY:

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Old 08-13-2012, 08:10 PM
Novicebutlearnin Novicebutlearnin is offline
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Adding Air Bags?

I have 2008 250 6.4. Pulling 34' 5er that weighs around 13k loaded. When I add around 2200 pounds of 5th wheel pin weight to a truck that is already 8,800 pounds loaded it puts me at 11,000 lbs GVW. Truck is rated at 10,000 lbs. I love the truck and don't want to trade for something with greater GVWR if I don't have to. I believe the axle rating is 3.73? Don't know about the springs. Will air bags help me? If so, any suggestions on what to buy. Thanks
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Old 08-13-2012, 08:24 PM
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3.73 is the gear ratio if you look at your door cert under axle and see 3L.

Also on the door cert is each axle rating along with the 10K GVWR.

Your truck should not weight 8800 lbs. Mine comes in a hare over 8200 lbs. empty.

Have you taken the truck to a catscale or over scale that can tell you each axle and the combined wt?

Airbags will help to keep it level but I beleive your pin wt should be closer to 2600 lbs, which is still 2K lower than mine.

Should have no problems.
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Scott-2013 F350 with a lot of tires.
2013 40' 4-slider stoneridge 5th wheel coming in at 15,400; 2015 Lincoln MKC
http://www.ford-trucks.com/guidelines.html

Previous Truck 2008 F250 6.4 with lots of upgrades and a suspension upgrade from Torklift International StableLoads
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Old 08-13-2012, 08:58 PM
Novicebutlearnin Novicebutlearnin is offline
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Don't know what my axle rating is. Don't have door certi. Where would I find that out. Also, did I understand you to say your pin weight is over 4K and your GVWR is 12K? How? Is you 08 GVWR 10K? I want to be able to do that too. What do I need to do to my truck?
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Old 08-13-2012, 09:03 PM
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open the drivers door. on the pillar will be your ratings. each axle and the axle code. My pin wt is 2800 lbs.

My truck is registered for 12K. Done at the DMV.
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Scott-2013 F350 with a lot of tires.
2013 40' 4-slider stoneridge 5th wheel coming in at 15,400; 2015 Lincoln MKC
http://www.ford-trucks.com/guidelines.html

Previous Truck 2008 F250 6.4 with lots of upgrades and a suspension upgrade from Torklift International StableLoads
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Old 08-13-2012, 09:23 PM
Novicebutlearnin Novicebutlearnin is offline
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Sorry, but I am as my name implies a "novice". You went to the DMV to change your GVWR so you would be legal. Is that correct? However, that did not change your axle rating, springs, etc... that gave you an original GVWR of 10K. What did you do to your truck to enable it to handle the additional weight? I am running over my GVWR by 800 pounds and I don't want to hurt the truck or myself. I think I am confused. Sorry.
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Old 08-14-2012, 06:16 AM
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Lets start at the basics. First report back with your numbers from the door certification.

Front axle:
Rear axle:
Axle code:

We already know the 10K GVWR- Ford has this 10K package because some states and insurance companies will rate anything over 10K as commercial thereby costing more.

After we have your numbers then you need to take a trip to the scales, empty with all the gear you normally carry and full tank of fuel.

So lets start there with where you really stand.
CAT Scale
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Scott-2013 F350 with a lot of tires.
2013 40' 4-slider stoneridge 5th wheel coming in at 15,400; 2015 Lincoln MKC
http://www.ford-trucks.com/guidelines.html

Previous Truck 2008 F250 6.4 with lots of upgrades and a suspension upgrade from Torklift International StableLoads
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Old 08-14-2012, 11:34 AM
Novicebutlearnin Novicebutlearnin is offline
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Senix, thanks for your patience and being willing to help
me understand. I want to be fully educated before deciding what to do with my truck. Here are my truck ratings:

Front axle: 5,600 lbs
Rear axle: 6,100 lbs
Axle Code: 3L

I have been to the scales and here are my numbers:

Truck GVW: 8,680 lbs (Two passengers, full tank, tool box, fifth wheel hitch)
5th Wheel Loaded: 12,600
Pin Weight: 2440
GCVW: 21,280

Also, my tires are Goodyear LT 265/60R20 and have a load range "E". Not sure what any of that means either. (The ratings on my door certification for tires is LT 275/R18E)

Again thank you for your help. Looking forward to hearing back from you.
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Old 08-14-2012, 12:22 PM
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unknown's here are what the unloaded weights per axle are.

You list the 8680 but not each axle individually do you have that?

Also you list the wet wt of 12,600 but what about each axle with the 5er?

All in all I think you are fine.

For the tires there must have been a change before your purchase of the truck. E rated is a load rating. LT stands for light truck (vs P for passenger car).

Look at the sidewall for max load (at max psi) what do you see.
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Scott-2013 F350 with a lot of tires.
2013 40' 4-slider stoneridge 5th wheel coming in at 15,400; 2015 Lincoln MKC
http://www.ford-trucks.com/guidelines.html

Previous Truck 2008 F250 6.4 with lots of upgrades and a suspension upgrade from Torklift International StableLoads
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Old 08-14-2012, 03:34 PM
Novicebutlearnin Novicebutlearnin is offline
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I did not check unloaded front and rear axle weights on truck or axle weights on 5er. Will do that when possible. Maximum load PSI on tires is 80lb.
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Old 08-14-2012, 04:26 PM
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what we are zeroing in on that is important to me is the axle ratings, tire ratings and overall GCWVR.

We know the GCWR is good.

As long as you are with in that loaded then you are fine.

Know the empty wts will let you know how far you can go loaded.
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Scott-2013 F350 with a lot of tires.
2013 40' 4-slider stoneridge 5th wheel coming in at 15,400; 2015 Lincoln MKC
http://www.ford-trucks.com/guidelines.html

Previous Truck 2008 F250 6.4 with lots of upgrades and a suspension upgrade from Torklift International StableLoads
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Old 08-16-2012, 02:11 PM
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Airbags don't increase a vehicles capacity right. They stabilize a load or level a truck with weight in the bed. That's all
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Old 08-17-2012, 03:59 AM
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Quote:
Originally Posted by FivePointo View Post
Airbags don't increase a vehicles capacity right. They stabilize a load or level a truck with weight in the bed. That's all
That is correct! But they also help smooth out the ride that is caused by some of the heavier fifth wheels as well. The air bags and Viair system are mods that I will do to every truck of mine from now on.
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Old 08-17-2012, 03:59 AM
 
 
 
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