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Lars(wi) 
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Joined: 14 Sep 2009
Location: Permian Basin
Points: 8344
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 Topic: Time to settle an argument……..
Posted: 07 Feb 2026 at 5:53pm |
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Concerning the aspects of changing a dually pickup, to single rear wheel. Some have claimed there are spacers to remove, change brakes, etc. I say, if you want to keep the flaired fenders, just remove the tires from the inside dual, remount the inside rim, then remount the outer tire and rim just like before. The now single rear tires will set wider than the steer axle, but so what? Am I mistaken?
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I tried to follow the science, but it was not there. I then followed the money, and that’s where I found the science.
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steve(ill)
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Joined: 11 Sep 2009
Location: illinois
Points: 89993
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Posted: 07 Feb 2026 at 6:46pm |
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why would you remount the rims without tires on them ?? ... i would think you would want to move the rear tires INWARD a little bit ? ............ are you thinking the inner rim will protect the brake / caliper ?
Edited by steve(ill) - 07 Feb 2026 at 6:55pm
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Like them all, but love the "B"s.
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DMiller
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Joined: 14 Sep 2009
Location: Hermann, Mo
Points: 35317
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Posted: 07 Feb 2026 at 8:09pm |
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Are no special spacers, axle housings are different, dually Pickup Wide spread rear is Wider and has longer axle shafts. Put single wheels on it will remain wide. To compensate for Inner dual tire from riding too close to springs.
The other concern is you now Offset the load to the wheel bearings. Dual Hubs the tires support equall mass against centerline of Hub, same is true for a single rear wheel axle hub.
Rear studs on my SD 250 are same length as for dually.
Edited by DMiller - 07 Feb 2026 at 8:11pm
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Coke-in-MN
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Joined: 12 Sep 2009
Location: Afton MN
Points: 42199
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Posted: Yesterday at 2:43pm |
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Seems if you go to rims for a single tire rear , the load would center on bearings and the clearances would be good , using the duel rims over to single would create offset which might become a issue .
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Life lesson: If you’re being chased by a lion, you’re on a horse, to the left of you is a giraffe and on the right is a unicorn, what do you do? You stop drinking and get off the carousel.
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steve(ill)
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Joined: 11 Sep 2009
Location: illinois
Points: 89993
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Posted: Yesterday at 4:06pm |
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standard rims off a single tire axle would probably look good and be best... but now you got rims that are not interchangeble front and rear...
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Like them all, but love the "B"s.
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Lars(wi)
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Joined: 14 Sep 2009
Location: Permian Basin
Points: 8344
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Posted: 22 hours 37 minutes ago at 9:19pm |
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Thanks everyone, yes I imagine a guy could use ‘super singles’.
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I tried to follow the science, but it was not there. I then followed the money, and that’s where I found the science.
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TedN
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Joined: 30 Apr 2025
Location: Central WA
Points: 142
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Posted: 17 hours 36 minutes ago at 2:20am |
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My brother did this on a Dodge years ago. Take off all the offset wheels and the spacers from the front axle and put on single wheels all around, he used white spoke aftermarket wheels. He had a flatbed, so when done it looked no different than a 3/4 ton. This only works with a one ton pickup, if you have a one ton cab and chassis it has a narrow rear axle.
Ted
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190XTD seriesIII, 190XTD seriesI, maroon belly 7000, 190XTD series??? project(or maybe parts)
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JoeM(GA)
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Joined: 12 Sep 2009
Location: Cumming,GA
Points: 4920
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Posted: 12 hours 9 minutes ago at 7:47am |
 Lars(wi) wrote:
Thanks everyone, yes I imagine a guy could use ‘super singles’. |
There’s a young man here running super singles, I questioned him at the fuel pump one time, he said it’s a scary ride in the rain, and useless on any thing but asphalt
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Allis Express North Georgia
41 WC,48 UC Cane,7-G's,
Ford 345C TLB
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Ed (Ont)
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Joined: 08 Nov 2009
Location: New Lowell, Ont
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Posted: 10 hours 31 minutes ago at 9:25am |
Why would you want to do that? Just curious. 
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PaulB
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Joined: 12 Sep 2009
Location: Rocky Ridge Md
Points: 5230
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Posted: 10 hours 22 minutes ago at 9:34am |
Ed (Ont) wrote:
Why would you want to do that? Just curious. |
Those that want to hide from DOT want single wheels all around. Anything that has Duals is almost always over 10,000 GVW and automatically need at least an annual FMCSA inspection, which very few have = Easy ticket.
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If it was fun to pull in LOW gear, I could have a John Deere.
Real pullers don't have speed limits.
If you can't make it GO... make it SHINY
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Lars(wi)
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Joined: 14 Sep 2009
Location: Permian Basin
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Posted: 8 hours 11 minutes ago at 11:45am |
Ed (Ont) wrote:
Why would you want to do that? Just curious. |
It was a discussion, kinda a gentleman’s argument.
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I tried to follow the science, but it was not there. I then followed the money, and that’s where I found the science.
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Lars(wi)
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Joined: 14 Sep 2009
Location: Permian Basin
Points: 8344
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Posted: 8 hours 9 minutes ago at 11:47am |
PaulB wrote:
Ed (Ont) wrote:
Why would you want to do that? Just curious. |
Those that want to hide from DOT want single wheels all around. Anything that has Duals is almost always over 10,000 GVW and automatically need at least an annual FMCSA inspection, which very few have = Easy ticket. |
So, with my F-350 dually, registered in my personal name, with regular ‘auto tags’(plates), that vehicle falls under FMCSA regulations?
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I tried to follow the science, but it was not there. I then followed the money, and that’s where I found the science.
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Coke-in-MN
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Joined: 12 Sep 2009
Location: Afton MN
Points: 42199
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Posted: 5 hours 33 minutes ago at 2:23pm |
SNEAKY way DOT has to include more truck into their system . Like a few years back friend who does salvage work had set of torches standing up in his bed . Got pulled over and made to go back to scale house . There wrote up for not having HAS MAT decals on truck , no HAS MAT endorsement on license , as regulators were on bottles - another ticket , no Inspection stickers on vehicle . Ended up over $500 fines and fact truck had to be towed as without all being fixed at scale - could not be moved by driving . In a 1/2 or 3/4 ton bottles laying down or hidden from view - would have been free sailing . In a 1 ton always the chance of attracting attention
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Life lesson: If you’re being chased by a lion, you’re on a horse, to the left of you is a giraffe and on the right is a unicorn, what do you do? You stop drinking and get off the carousel.
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PaulB
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Joined: 12 Sep 2009
Location: Rocky Ridge Md
Points: 5230
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Posted: 2 hours 1 minutes ago at 5:55pm |
YES. You may be using the F350 only as a personal use vehicle. however ANYTHING that has a manufactures GVW rating over 10,000 pound IS REQUIRED to have a FMCSA inspection at least annually. On another issue, depending on your local state laws, if you have "auto" tags on a F350 you may have a restriction as to what trailer you can tow.
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If it was fun to pull in LOW gear, I could have a John Deere.
Real pullers don't have speed limits.
If you can't make it GO... make it SHINY
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