Trailer builders, question on hubs

Got4wd

TJ Enthusiast
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Sep 8, 2019
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Reno
I’ve decided to finish building my Jeep tub trailer since it’s mostly completed minus the axle. I’ve got factory wheels (2005 rubicon) and am wondering if the grease able hubs will fit the center bore on the wheels or will I need to run spacers? I haven’t found much on searching the internet.
 
I had to use spacers on mine.
1.webp
 
TJ factory alloy wheels have a roughly 1.8" center hole. TJ factory steel wheels have a center hole that's roughly 2.9" in diameter. Most trailer hubs are roughly 2.45" diameter, so allow wheels will require as spacer but factory Wrangler steel wheels will fit over a typical trailer hub.

Factory steel wheel on a trailer hub:

1597012436843.webp


Alloy wheel with a spacer on a trailer hub:

1597012477055.webp


Alloy wheel and a 1.25" thick spacer on a Harbor Freight frame/axle:

1597012532304.webp
 
TJ factory alloy wheels have a roughly 1.8" center hole. TJ factory steel wheels have a center hole that's roughly 2.9" in diameter. Most trailer hubs are roughly 2.45" diameter, so allow wheels will require as spacer but factory Wrangler steel wheels will fit over a typical trailer hub.

Factory steel wheel on a trailer hub:



Alloy wheel with a spacer on a trailer hub:

View attachment 182550

Alloy wheel and a 1.25" thick spacer on a Harbor Freight frame/axle:
Can you still use the factory cap?
 
Can you still use the factory cap?
Not with a 1.25" thick spacer. You would probably need a 2" spacer to push the wheel out far enough so the cap would clear the trailer hub center cap, although I haven't measured so that's just a guess.
 
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Not with a 1.25" thick spacer. You would probably need a 2" spacer to push the wheel out far enough so the cap would clear the trailer hub center cap, although I haven't measured so that's just a guess.

I've used 2" spacers on 2 trailer builds and the factory caps will fit.
 
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