SRW Conversion...
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Trailering
Joined: Nov 2023
Posts: 17
Likes: 2
From: Phoenix
Exactly, that's why I was trying to avoid that so I don't have to re-gear. It's really looking like I may just need to order a new cab & chassis. Now it's a debate between a 350/450/550. 350 would allow me to order an SRW, the 450 and 550 would allow for super singles. Not sure which route to go there and then I need to decide between the 7.3 gas and the 6.7 diesel.
Hotshot
Joined: Mar 2017
Posts: 10,172
Likes: 1,376
From: Chaz
Yeah and at 176K I wouldn’t be investing a bunch into it.
No idea your needs but I would probably do a 450 pickup since the 6.7 isn’t derated. Changing the bed anyway? You also aren’t over 14,000gvwr.
You can also do a 7.3 15,000 derate f450 chassis cab
No idea your needs but I would probably do a 450 pickup since the 6.7 isn’t derated. Changing the bed anyway? You also aren’t over 14,000gvwr.
You can also do a 7.3 15,000 derate f450 chassis cab
Tuned
Joined: Oct 2016
Posts: 303
Likes: 35
Can you?
The rear axle is longer on the DRW than on the SRW to account for the high offset of the dually wheel, it doesn't use a spacer in the rear.
You could bolt a single wheel to the DRW hub, but it would stick further out than it would on a SRW axle, but if you are building a custom camper for it, then just take that into account as you design it.
You could bolt a single wheel to the DRW hub, but it would stick further out than it would on a SRW axle, but if you are building a custom camper for it, then just take that into account as you design it.
Cargo Master
Joined: Apr 2018
Posts: 2,411
Likes: 1,124
Exactly, that's why I was trying to avoid that so I don't have to re-gear. It's really looking like I may just need to order a new cab & chassis. Now it's a debate between a 350/450/550. 350 would allow me to order an SRW, the 450 and 550 would allow for super singles. Not sure which route to go there and then I need to decide between the 7.3 gas and the 6.7 diesel.
Buying one off the lot as a registered RV vs buying one and converting might be a lot of hoops to jump through.
Thread Starter
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Trailering
Joined: Nov 2023
Posts: 17
Likes: 2
From: Phoenix
I hear ya there. This will be a flatbed camper that can be removed. So it won’t be an actual RV. I do need to research the insurance aspect though.
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Tuned
Joined: Jul 2021
Posts: 497
Likes: 266
From: Northwest FL
Exactly, that's why I was trying to avoid that so I don't have to re-gear. It's really looking like I may just need to order a new cab & chassis. Now it's a debate between a 350/450/550. 350 would allow me to order an SRW, the 450 and 550 would allow for super singles. Not sure which route to go there and then I need to decide between the 7.3 gas and the 6.7 diesel.
Thread Starter
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Trailering
Joined: Nov 2023
Posts: 17
Likes: 2
From: Phoenix
If you're willing to buy a new C&C dually and put super singles on it, why can't you just put the super singles on your existing dually that you said in your initial post you wanted to keep and call it a day? I'm sure you've already considered it but I'm curious to know why that wouldn't work.
Logistics Pro
Joined: May 2022
Posts: 4,285
Likes: 2,416
From: Everywhere and nowhere
Sterling 10.5" has 4.11 gears available. Find a Sterling 10.5" from 2011+. 2011+ went to a 37 spline pinion from a 31 spline I believe. They had E-lockers available from the factory. There is no gear split with the E-locker so you can throw whatever gear ratio you want in.
Laughing Gas
Joined: Oct 2017
Posts: 787
Likes: 73
From: Lansing MI
You can’t put super singles on an f-350. That’s the whole point. I was trying to find a way to convert a 350 to SRW’s without major work such as replacing the entire rear end which then causes me to re-gear. All of this on a truck with 176k miles. With the costs of used trucks and the fact that you can order a C&C in both 350’s and 450/550’s, the rules change. A 350 SRW C&C or a 450/550 with a super single conversion are the two viable options at this point. I didn’t want to spend that much, but I also don’t want to dump too much in a truck with this many miles. Make sense?
Hotshot
Joined: Mar 2017
Posts: 10,172
Likes: 1,376
From: Chaz
Problem is you max rear gawr at like 7200lbs in a srw 350. You could change wheels and tires and get a little over 8,000 but that won’t match the sticker.
Do a 450 pickup if you want a diesel and can live with 10,000 rear gawr on the white sticker. Keeps you at 14,000 gvwr too. Typical lift kit parts too. Offset the mods by selling the factory bed and wheels. But you do loose about 1ft in bed length but make up for more than that in width.
There are tires out there that work with super single set ups and have 87mph ratings.
Do a 450 pickup if you want a diesel and can live with 10,000 rear gawr on the white sticker. Keeps you at 14,000 gvwr too. Typical lift kit parts too. Offset the mods by selling the factory bed and wheels. But you do loose about 1ft in bed length but make up for more than that in width.
There are tires out there that work with super single set ups and have 87mph ratings.
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Trailering
Joined: Nov 2023
Posts: 17
Likes: 2
From: Phoenix
So if I went with a cab & chassis and just bit the bullet with the super single conversion in a 6.7L...would you go F-450 or F-550, and why? I like the idea the a C&C will be discounted probably more than I could sell a bed for. The detuned engine doesn't bother me too much as I could get that adjusted when making the 6.7L the way it's meant to be. Not to sure how I feel about the smaller turbo, not because I'm hot rodding, but because I'd rather operate at 1/2 of full size than 3/4 of a smaller version. Either way, the point is, 450 or 550 and why?
