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Old 03-01-2015, 03:10 AM
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SiteSolutions SiteSolutions is offline
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SRW adequate for heavier towing?

Just bought a short cab, flatbed F350 to replace my worn out short cab flatbed F350. Newer truck is several years newer, a couple hundred thousand miles fresher, and in overall much better condition.

Here's the catch: best part about the old truck is the massive Dana 80 Dually rear end. New truck is a one ton but only single rear wheel with a smaller looking Ford 10.5 rear end.

I was just going to sell my old truck as a starter truck for someone else who needs to move heavy things but doesn't have much money. However, the more I think about it, I wonder if I would be better off with the bigger rear end under the newer truck.

I typically haul a 10,000# 16 ft bumper pull with a CTL or mini-ex, but also have a 30' 20,000# gooseneck. I have used it to haul large loads of logs and even hauled 8 pallets of sod one time. It's a great trailer, but it probably weighs over 6,000# empty.

Is a SRW going to hold up moving a trailer that grosses 14,000# or more?

Has anyone had an axle swapped in this sort of way?

Love to hear everybody's thoughts, thanks.
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Old 03-01-2015, 01:29 PM
michics michics is online now
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A friend of mine has been pulling large heavy trailers for years and claims that a 1 ton dually is the most stable towing rig in the pickup class. The dual wheels reduce / eliminate sway, rocking, wandering as you go down the road. I doubt you would be happy with your single axle. Swapping the whole rear housing into your newer truck should be pretty straight forward assuming the width measurements work out.

I would think to make a single axle setup work you would need super single tires, heavy duty sway bar and springs.

Good luck.
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Old 03-01-2015, 03:19 PM
Regal Landscapes Regal Landscapes is online now
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I'm fine pulling my bumper pull 14k trailer with a srw and airbag suspension.

I probably wouldn't go much higher than that. So I'd go for the drw and the heavier axle for the gooseneck
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Old 03-01-2015, 03:25 PM
nomorelawns nomorelawns is online now
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Your 20k trailer will most likely put way too much weight on the rear axle of the truck unless you really plan out your load distribution. If you are hauling a couple particular pieces of equipment you could make a couple marks on the deck to let you know when the machine is in its "sweet spot". I did that dance with my 2500 towing 12k of mini excavator on a tag trailer.
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Old 03-01-2015, 03:27 PM
nomorelawns nomorelawns is online now
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Srw I have pulled 18000# of well balanced dual axle trailer, but would not want to do it with any regularity. Same weight with triple axle trailer was better.
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Old 03-01-2015, 05:48 PM
Mdirrigation Mdirrigation is online now
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Make sure the tires can handle the weight . And if you have a 20K lb goose neck you may want to read the motor vehicle rules . so I dont start an arguement I will phrase it this way . I "believe " you need a class A cdl for that . The gvw of the truck and trailer exceed 26,000 lbs . ( not what you have them registered for but the gvw weights of the truck and trailer)
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Old 03-02-2015, 03:54 PM
Mark13 Mark13 is offline
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Without getting into a CDL debate I run a 3/4ton single wheel truck on a 28' gooseneck. Airbags in the rear and careful research before buying tires to get the highest load rating I could and it's been working well for over 4 years.

Is it as stable as a dually? No, but with proper setup a single wheel can do just fine.

I'm in a rural area where DOT isn't something that is passed on the road 3x a day and most of the time I'm on roads where I might not even see another car, but 18k is a light load for me. My trailer is 8800lb empty as well.
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Old Today, 09:29 AM
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SiteSolutions SiteSolutions is offline
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Welp, I decided to give it a try and swapped the rear ends yesterday. Got the big bed off the old truck headed to the welder to be re-sized. Had to replace a rotor and caliper on the dually rear as well, so I didn't get finished till late last night. Took it for a brief test drive and man what a difference. The SRW wasn't posi so it would spin one wheel, now I have 4 wheels pulling together. The dually rear is also 4.10 gears vs. 3.73 in the SRW, so it ought to have a good bit of grunt. Can't wait to get the hitch and bed put on here and pull some weight!

Thanks for the replies. Here's a few pics:
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Old Today, 09:35 AM
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SiteSolutions SiteSolutions is offline
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Looks like that's all the pics I can upload for now. Site isn't taking any of my other pics.
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Old Today, 09:51 AM
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More pics: (had to edit them in photoshop to resize them. )
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