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Discussion Starter · #1 ·
Looking to upgrade to a 2017 F350 DRW or a F450. So far the local dealers do not know much about the trucks.

The F350 DRW shows more payload capacity than the F450. I want to know the rear axle ratio on both and also the GAWR on both. The GVWR is 14,000# on both.

My concern is the high pin weight on my 5er, plus an extra 40 or 50 gallon aux fuel tank and my air ride hitch is 400#.

On my current 2012 F350 DRW, I am getting close to the trucks weight limits. I would rather stay in a light duty truck and not have to move up to a MDT like a Freightliner FL60.

I am a retired mechanical engineer and been towing for a long time and understand all of the tow ratings. Any insight into the new trucks would be helpful.

Ken
 

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I have a 450 and the main differences are the 4:30 rear end - which will save your tranny and motor over time if towing sizable loads - rated 1,000 lbs higher to 7,000 lbs, 19.5in wheels all around (a bit tougher ride due to the steel sidewalls for heavier weight capacity), front axle the same but 1,000 lb higher weight rating, tighter turning radius (why I don't know, but it rocks in tight situations), and my gross combined weight rating is 40,000 lbs compared vs 32,100 for a 3.73 F-350 DRW. I can tow up to 31,200 lbs of gooseneck vs 24,200 lbs in the F-350 DRW.

All this being said, I just had custom rear springs made to soften the ride and get rid of the porpoising under load on crappy cement highways, and kidney killing jolts when empty. So the new springs are progressive soft rides (7 leaves vs 3+1 stock) plus I added 5,000 lb capacity air bags. Empty it rides like a 250 and loaded it rides better than a 250. For this, I have given up 700 lbs of load capacity with springs alone, but with air bags, I got it all back if I need it. My pin weight on my 36 ft living quarters/3 horse trailer is about 3,000 lbs, so no problem and no squat.

My 4.30 rear end gets 14.5 mpg around town and 11.5 towing (average from ATL to Wyoming and back) this summer. Oil temps hit 230 max but stayed around 215 most of time. Tranny temp stayed at 205 the entire time.

For me, I paid the extra money to have a towing Platinum monster with the 4.30 rear end and the dealer sold it for the cost of a 4.30 special order 350. Otherwise, I would have bought the 350 that is more comfortable out of the box. The springs and bags cost me $1350 and I installed both, so cheap custom upgrade.

Good luck.
 

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Have they implemented the sensors for overload I've heard will be seen soon? It senses any overload by a set of sensors set in various angles to aid in determining if GVWR is overload condition. This will be a safety feature to put the truck in limp mode til weight is removed.
 

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Discussion Starter · #4 ·
My loaded pin weight is about 4250# with my 5er. I have air springs to aid in the ride when loaded.

They don't seem to offer the 350 with the heavy tow package with a 4.10 axle and 19.5" wheels like last year.

Ken
 

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My loaded pin weight is about 4250# with my 5er. I have air springs to aid in the ride when loaded.

They don't seem to offer the 350 with the heavy tow package with a 4.10 axle and 19.5" wheels like last year.

Ken
You would of had to buy a F450 to get 19.5" wheels, never had F350 with 19.5's and the F350 came with 4.30 axle 17" wheels
 

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I have a 450 and the main differences are the 4:30 rear end - which will save your tranny and motor over time if towing sizable loads - rated 1,000 lbs higher to 7,000 lbs, 19.5in wheels all around (a bit tougher ride due to the steel sidewalls for heavier weight capacity), front axle the same but 1,000 lb higher weight rating, tighter turning radius (why I don't know, but it rocks in tight situations), and my gross combined weight rating is 40,000 lbs compared vs 32,100 for a 3.73 F-350 DRW. I can tow up to 31,200 lbs of gooseneck vs 24,200 lbs in the F-350 DRW.

All this being said, I just had custom rear springs made to soften the ride and get rid of the porpoising under load on crappy cement highways, and kidney killing jolts when empty. So the new springs are progressive soft rides (7 leaves vs 3+1 stock) plus I added 5,000 lb capacity air bags. Empty it rides like a 250 and loaded it rides better than a 250. For this, I have given up 700 lbs of load capacity with springs alone, but with air bags, I got it all back if I need it. My pin weight on my 36 ft living quarters/3 horse trailer is about 3,000 lbs, so no problem and no squat.

My 4.30 rear end gets 14.5 mpg around town and 11.5 towing (average from ATL to Wyoming and back) this summer. Oil temps hit 230 max but stayed around 215 most of time. Tranny temp stayed at 205 the entire time.

For me, I paid the extra money to have a towing Platinum monster with the 4.30 rear end and the dealer sold it for the cost of a 4.30 special order 350. Otherwise, I would have bought the 350 that is more comfortable out of the box. The springs and bags cost me $1350 and I installed both, so cheap custom upgrade.

Good luck.

What air bag system did you use?
 

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Discussion Starter · #7 ·
Firestone Ride Rite.

Ken
 

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Discussion Starter · #8 · (Edited)
Looked at a F450 and holy moly....sticker was $83000. I think it would even polish my boots for that price.

On the 2016 models, there was an option to order an F350 with the 14,000 GVWR, 4.30 axle, and a heavy dury towing package that had the 19.5" wheels and the wide stance like a F450.

You picked up a little payload capacity, since the F350 was a bit lighter than the F450.

Ken
 

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FWIW, we took a nice test drive in a 2017 F350 DRW this morning. As we have a 2009 F450, I was really curious how it'd turn compared to our F450. Came pretty close to our F450. Close enough that we're now considering a F350 over a F450. Parked it next to our F450. It was 2.5 inches taller at the tailgate than our F450.

I also followed the posts in this thread noting a 2016 F350 with the tighter turning radius and 19.5 inch wheels. We looked at a 2016 High Capacity Tow Package F350 back in April. It had the wide front end, 4.30 ratio rear-end, but only 17 inch wheels. Every once in awhile, I'd think we should have bought it. That changed this morning.

David
 
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