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Old 09-17-2020, 04:56 AM   #1
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Roadmaster spare tire carrier

I recently bought this used carrier on a garage sale for $75. It is not the correct one for my ford chassis which has 19.5" wheels but for that price I will make an adapter plate. I can't find a part/model number on it and I have searched the internet but can't find it. It must be an old style. Does anyone know the model number or vehicle fitment? It has larger lug bolts and bolt circle than my Ford and may be for 22.5" wheels.

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Old 09-17-2020, 06:02 AM   #2
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This must be an older version as the ones now fit multiple size wheel patterns.
https://www.roadmasterinc.com/pdf/85-5712.pdf


Should be easy to make an adapter plate but check to make sure that if you could move the bolts to the other holes.


You got a heck of a deal.
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Old 09-19-2020, 07:47 AM   #3
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I haven't seen one like that - I would contact Roadmaster and send them a pic, ask for a datasheet on that model.
I have the newer version and it self locks when vertical - I carry a mounted 22.5". The model you have might be for a passenger tire, based on the height of the lock pin (with cotter key). Does it have a extendable rod for leverage?
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Old 09-19-2020, 05:19 PM   #4
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Quote:
Originally Posted by RKins View Post
I haven't seen one like that - I would contact Roadmaster and send them a pic, ask for a datasheet on that model.
I have the newer version and it self locks when vertical - I carry a mounted 22.5". The model you have might be for a passenger tire, based on the height of the lock pin (with cotter key). Does it have a extendable rod for leverage?
Yes, I have the rod extension, the minimum bolt circle is larger than my 19.5" Ford wheels and the lug bolts are larger diameter. It has to be for the larger 22.5" wheels only or bigger. I may contact Roadmaster but will probably just make an adapter plate and use it that way . I thought someone on this forum might recognize it from the photo.
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Old 09-20-2020, 10:39 AM   #5
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Roadmaster makes several spare tire carriers. Some are lighter weight carriers than others. This one doesnít appear to be the Class A model carrier as those are designed to hold 19.5 and 22.5 wheels. If itís doesnít fit your bolt pattern thereís a reason why. The larger wheel/tire combos can be 150lbs and up.
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Old 09-20-2020, 12:24 PM   #6
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Iíd suggest some caution using this with a 5K hitch. I bought one, but I found it to be bit it put too much bounce in my hitch with the towed. I think this is ideal for a larger DP.
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Old 09-21-2020, 12:38 PM   #7
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I’d suggest some caution using this with a 5K hitch. I bought one, but I found it to be bit it put too much bounce in my hitch with the towed. I think this is ideal for a larger DP.
X2 on making sure the hitch can handle the weight - my mounted tire plus the 70 lbs of the carrier places 220 lbs straight down on the hitch - all the bouncing and jerking from the towed and before you know it, this could happen like it did to me. The weight snapped 2 of the 4 bolts of the hitch (the 2 closest to the towed). Come to find out the factory only installed a 4k hitch on this coach back in '97.





I later had a custom hitch made, with heavier material, that not only bolts to the bottom of the frame but also 3 places on the side of each frame and hooks over the top of the frame. A great 10k rated hitch.
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Old 09-21-2020, 12:49 PM   #8
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