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Time to settle an argument……..

Printed From: Unofficial Allis
Category: Other Topics
Forum Name: Shops, Barns, Varmints, and Trucks
Forum Description: anything you want to talk about except politics
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=210002
Printed Date: 01 Apr 2026 at 11:09pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com


Topic: Time to settle an argument……..
Posted By: Lars(wi)
Subject: Time to settle an argument……..
Date Posted: 07 Feb 2026 at 5:53pm
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.



Replies:
Posted By: steve(ill)
Date Posted: 07 Feb 2026 at 6:46pm
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 ?

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Like them all, but love the "B"s.


Posted By: DMiller
Date Posted: 07 Feb 2026 at 8:09pm
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.


Posted By: Coke-in-MN
Date Posted: 08 Feb 2026 at 2:43pm
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.


Posted By: steve(ill)
Date Posted: 08 Feb 2026 at 4:06pm
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.


Posted By: Lars(wi)
Date Posted: 08 Feb 2026 at 9:19pm
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.


Posted By: TedN
Date Posted: 09 Feb 2026 at 2:20am
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)


Posted By: JoeM(GA)
Date Posted: 09 Feb 2026 at 7:47am
Originally posted by Lars(wi) 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


Posted By: Ed (Ont)
Date Posted: 09 Feb 2026 at 9:25am
Why would you want to do that? Just curious. Smile


Posted By: PaulB
Date Posted: 09 Feb 2026 at 9:34am
Originally posted by Ed (Ont) Ed (Ont) wrote:

Why would you want to do that? Just curious. Smile

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


Posted By: Lars(wi)
Date Posted: 09 Feb 2026 at 11:45am
Originally posted by Ed (Ont) Ed (Ont) wrote:

Why would you want to do that? Just curious. Smile

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.


Posted By: Lars(wi)
Date Posted: 09 Feb 2026 at 11:47am
Originally posted by PaulB PaulB wrote:

Originally posted by Ed (Ont) Ed (Ont) wrote:

Why would you want to do that? Just curious. Smile


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.


Posted By: Coke-in-MN
Date Posted: 09 Feb 2026 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.


Posted By: PaulB
Date Posted: 09 Feb 2026 at 5:55pm
Originally posted by Lars(wi) Lars(wi) wrote:

Originally posted by PaulB PaulB wrote:

Originally posted by Ed (Ont) Ed (Ont) wrote:

Why would you want to do that? Just curious. Smile


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?

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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