New GCWR - Diesel Forum - TheDieselStop.com
'11-16 Ordering Information Discussion of ordering and status of an order of a Super Duty truck. All engine types allowed.

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post #1 of 13 (permalink) Old 12-19-2016, 02:20 PM Thread Starter
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New GCWR

My 2011 F350 SRW LB 4x4 has a 11,500 GVWR and a 23,500 GCWR. Looks like the same configuration on the '17 has the same GVWR, but a 28,200 GCWR. That's an increase of 4700 lbs. Wow! Can that be from the new boxed frame?

2017 F-350 6.7L SRW 4x4 FX4 CC LB Lariat Ultimate- Ruby Red/Magnetic- On Order

2011 F-350 6.7L SRW 4x4 FX4 CC LB Lariat- Job 2- Tuxedo Black
2008 F-350 6.4L SRW 4x4 CC SB King Ranch Job3 (SOLD)
2003 F-250 5.4 4x4 CC SB- Gas (Friend has it)
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post #2 of 13 (permalink) Old 12-19-2016, 03:48 PM
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Are you comparing your SRW with a 2017 DRW?

Larry

2015 F350 Ultra Lariat 6.7L CCLB DRW 3.73 Limited Slip, Green Gem Metallic w/ Caribou accent, Camper Package, Titan 65gal tank, Rapid Heat, Block Heater, Upfitter Switches, Dual Alternators, Camper Package, Cable Lock, Husky Floor Liners, Spray in Bedliner, 5th Wheel Prep, 25K 5th Wheel Hitch, Ford Goose Neck Hitch.

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Sold 1996 F350 XLT CCLB DRW 7.3L 208,000 miles



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post #3 of 13 (permalink) Old 12-19-2016, 04:58 PM Thread Starter
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Quote:
Originally Posted by larrgh View Post
Are you comparing your SRW with a 2017 DRW?
Nope. Both are SRW. I just looked at the towing guide.

2017 F-350 6.7L SRW 4x4 FX4 CC LB Lariat Ultimate- Ruby Red/Magnetic- On Order

2011 F-350 6.7L SRW 4x4 FX4 CC LB Lariat- Job 2- Tuxedo Black
2008 F-350 6.4L SRW 4x4 CC SB King Ranch Job3 (SOLD)
2003 F-250 5.4 4x4 CC SB- Gas (Friend has it)
1994 F-150 (SOLD)

2010 Fuzion 302 35' fifthwheel toyhauler
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post #4 of 13 (permalink) Old 12-19-2016, 05:00 PM Thread Starter
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The DRW is 36,000 GCWR

2017 F-350 6.7L SRW 4x4 FX4 CC LB Lariat Ultimate- Ruby Red/Magnetic- On Order

2011 F-350 6.7L SRW 4x4 FX4 CC LB Lariat- Job 2- Tuxedo Black
2008 F-350 6.4L SRW 4x4 CC SB King Ranch Job3 (SOLD)
2003 F-250 5.4 4x4 CC SB- Gas (Friend has it)
1994 F-150 (SOLD)

2010 Fuzion 302 35' fifthwheel toyhauler
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post #5 of 13 (permalink) Old 12-20-2016, 08:09 AM
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GVWR is about the weight the springs can carry. GCWR is about the brakes and how much weight they can stop.

Me thinks the brakes are bigger.
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post #6 of 13 (permalink) Old 12-20-2016, 08:40 AM
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GCWR is also about how fast a fully loaded truck can climb a grade, and if the powertrain can be cooled under those conditions.
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post #7 of 13 (permalink) Old 12-24-2016, 10:52 PM
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The fact that the gross weight stayed the same is what kept me out of a 2017. The truck was not really any lighter…2-300 lbs which didn't give me the capacity I needed without going to to a DRW truck. The combined is quite a bit higher, but some of that weight needs to go on a truck that did not see a bump in the GVW. 5K higher combined equals about 750-1K higher pin weight which is not there when looking at GVW. My 2016 SRW with the trailer hooked up had a GVW of 12,100…over the GVW by 600 lbs. The 2017 had me 300 lbs over with a lot more combined rating I could not use. I had to buy a DRW truck..so I bought a 2016 and saved a ton of money. I was hoping for a higher GVW…maybe 12,500 for a 2017 SRW, but that did't happen. Not sure how you get to a combined of over 28K without overloading the 11.5 gross on a truck that weighs close to 8K. My dealer let me take a 2017 to the scales. My 2016 F350 SRW weighed 8120 with a full tank and hitch in the bed. A like 2017 weighed 7800 lbs without the hitch. Not a big difference especially when you consider the 5K additional gross combined rating of the 2017 would put 750-1K lbs on the truck. Couldn't make the numbers add up. I was still over the 2017 SRW gross rating with tons of room under the combined of 28K+.
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2016 F350 KING RANCH DRW, 4X4, RUBY RED/CARIBOU, 3.73'S, LOADED, TUNED, ARE FLAT BED COVER, SPRAY IN LINER, 2.5" RANCHO FRONT LIFT, 3" REAR LIFT, RANCHO 9000 XL'S, 255/80/17 BFG MUD TERRAINS, EBC BRAKES, RADIO LOCKPICK, FRONT LIGHT BAR AND REAR FLUSH MOUNT LED'S.
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post #8 of 13 (permalink) Old 12-25-2016, 09:08 PM
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No matter what you do with the ratings, you can't go over the capacity of 2 tires on a SRW--that is always going to be the limiting factor when considering pin weight/gooseneck weight. That is probably what is holding back the GVW rating...
Joe

2017 F450 KR
2010 F450 Lariat 4x4--died, but reborn, traded
2009 F450 Lariat 4x4--died, scrapped
2007 F350 KR DRW CC 4x4-Gone to pasture
2015 Mobile Suites 38RSSA--hoping for another 10 years
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post #9 of 13 (permalink) Old 12-25-2016, 09:43 PM
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The capacity of the tires on an F350 SRW are either 4 @3640 for 14,560 lbs on the 18" rims or 4@3750 for 15000 lbs if you got the 20" wheels. The tires do not limit ANYTHING these trucks are rated for. The rear axle rating is 7280 lbs on a 2016 SRW F350. You can't get anywhere near any of these numbers with a GVW of 11,500 lbs. The front end weight is around 5200 lbs on the diesels only leaving 6300 for the rear…which is no where near the 2 tire capacity of 7280 or 7500 lbs. The front axle is rated at 6K lbs. The 2017 SRW F350 truck uses a different rear axle than the 2016's. It now has a DANA under the back…but no greater GVW was obtained even though the tires and axles are rated for it. The 2016 had axles rated for 6K+7280 for a total of 13,280…way below the tire ratings. I'm not sure if the 2017 rear axle is rated higher than the 2016, but the front stayed at 6K. I was hoping for an 8K rear rating to go with a front of 6K which would have put a 12.5K GVW well under the axles and tire ratings on a SRW F350.


Just looked at Fords site and the 2017 SRW 4X4 rear axle is rated at 7230 lbs. That is 50 lbs less than the 2016 truck. Combined axle rating would be 13,230 on a SRW 4X4…well below the tire ratings. I'm guessing Ford is sandbagging. Why replace the Sterling axle with a new DANA axle on the SRW F350 with the same weight rating. I bet the GVW goes up on the SRW F350 next year after the competition raises theirs. The F250 still uses the Sterling rear axle.
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2016 F350 KING RANCH DRW, 4X4, RUBY RED/CARIBOU, 3.73'S, LOADED, TUNED, ARE FLAT BED COVER, SPRAY IN LINER, 2.5" RANCHO FRONT LIFT, 3" REAR LIFT, RANCHO 9000 XL'S, 255/80/17 BFG MUD TERRAINS, EBC BRAKES, RADIO LOCKPICK, FRONT LIGHT BAR AND REAR FLUSH MOUNT LED'S.

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post #10 of 13 (permalink) Old 12-25-2016, 10:39 PM
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Did you crawl under a SRW truck and find DANA or SPICER on the axle?
When I was tire kicking the other day and looked at a 17 dually and a 17 SRW sitting next to each other it sure looked like the Sterling as before on the F350 SRW and the same D80 on the F350 DRW. I agree the center housing casting looks like it may be beefier.
Sterling has no fill plug on diff cover and Dana does.

2015 F350 Platinum Max Tow What a beast with the 4.30 gears!
2006 F450 CC Hauler bed 4x2 6.0 L 6.0 auto, Lariat, 4.30 r/a, SCT, 4in exh. 103K New heads to repair diesel in coolant, 148K.
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post #11 of 13 (permalink) Old 12-26-2016, 07:52 AM
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CobraJet,
Sorry, thought you were concerned about RAWR and pin weights...most are concerned about that since that is where the load goes.

2017 F450 KR
2010 F450 Lariat 4x4--died, but reborn, traded
2009 F450 Lariat 4x4--died, scrapped
2007 F350 KR DRW CC 4x4-Gone to pasture
2015 Mobile Suites 38RSSA--hoping for another 10 years
2005 Mobile Suites 36TK3--traded, 10 years of camping memories
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post #12 of 13 (permalink) Old 12-26-2016, 07:02 PM
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Quote:
Originally Posted by jimmy View Post
Did you crawl under a SRW truck and find DANA or SPICER on the axle?
When I was tire kicking the other day and looked at a 17 dually and a 17 SRW sitting next to each other it sure looked like the Sterling as before on the F350 SRW and the same D80 on the F350 DRW. I agree the center housing casting looks like it may be beefier.
Sterling has no fill plug on diff cover and Dana does.
According to Ford the F350 SRW DIESEL uses a new DANA M275. It has a 10.8" ring gear compared to the old Sterling 10.5. The axles are larger and have more splines. The housing is also thicker.

The DRW trucks get a new DANA M300. It has an 11.8 inch ring gear compared to the old 11.5. It has larger axles with more splines and a beefed up housing.

The F250 and the F350 SRW GASOLINE truck use the old Sterling 10.5.

I'm guessing the new DANA M300 looks a lot like the old DANA 80 from underneath. I have no idea what the M275 looks like, but I'm guessing it's pretty similar to the Sterling in appearance. Regardless of what they look like…they are in fact different than the 2016's.

2016 F350 KING RANCH DRW, 4X4, RUBY RED/CARIBOU, 3.73'S, LOADED, TUNED, ARE FLAT BED COVER, SPRAY IN LINER, 2.5" RANCHO FRONT LIFT, 3" REAR LIFT, RANCHO 9000 XL'S, 255/80/17 BFG MUD TERRAINS, EBC BRAKES, RADIO LOCKPICK, FRONT LIGHT BAR AND REAR FLUSH MOUNT LED'S.
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post #13 of 13 (permalink) Old 12-26-2016, 07:14 PM
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Originally Posted by wingnut60 View Post
CobraJet,
Sorry, thought you were concerned about RAWR and pin weights...most are concerned about that since that is where the load goes.
I am concerned about it..just don't know how you will ever max out the rear axle or the tires on a SRW F350 without busting out of the GVW. The max GVW is 11.5K on the 4X4 with the PSD. The front is going to weigh 5200-5400lbs. There is no changing that. That leaves 6100-6300lbs to put on the rear before busting out of the GVW. The truck will weigh about 3K empty on the rear. 6.1-6.3K is way below the axle rating of 7280 or two tire combined rating of 7300-7500lbs. I would have liked the GVW to have gone up a little bit…say to 12K on the 2017. The front weight is the same so the rear would be taking on 6600-6800lbs. Still below the ratings of the tire or axles. I would likely have bought the 2017 SRW if the GVW had gone up 500 lbs. I would have cleared the GVW by a couple hundred pounds with TONS of combined left over. The combined on the 2017 is NUTS…but you'll never get there with a 5th wheel….that's gooseneck only capacity where the weight stays on the trailer. My 2016 SRW had me busting out on GVW by 400 lbs and combined by 700. I wound up buying a 2016 DRW because they were giving them away and it has no problem with my weights.

2016 F350 KING RANCH DRW, 4X4, RUBY RED/CARIBOU, 3.73'S, LOADED, TUNED, ARE FLAT BED COVER, SPRAY IN LINER, 2.5" RANCHO FRONT LIFT, 3" REAR LIFT, RANCHO 9000 XL'S, 255/80/17 BFG MUD TERRAINS, EBC BRAKES, RADIO LOCKPICK, FRONT LIGHT BAR AND REAR FLUSH MOUNT LED'S.
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