12 bolt rims

George Stojkos · Post by **George Stojkos** » Thu Mar 27, 2008 2:24 am

Is there any way to tell the differance between the old style 12 bolt rims and the new style besides the colour of the 0 ring ?

emmado22 · Post by **emmado22** » Thu Mar 27, 2008 3:20 am

The extra hole on the outer part, and of course, the part #'s stamped into both parts.

STUDENT-DRIVER · Post by **STUDENT-DRIVER** » Thu Mar 27, 2008 5:26 am

Is there a problem to mix the two pices (Old and new)

emmado22 · Post by **emmado22** » Thu Mar 27, 2008 6:58 am

Well, the rims will be weight rated for the lowest load carrying piece.. A mix of a 3,800# and 3,450# will only be rated for 3,450#

gizip · Post by **gizip** » Thu Mar 27, 2008 12:41 pm

George, the back half of a 3850 rim has to have the red "O" ring. This is the rim with the extra line up hole between two of the 12 studs. The back half of the older 12 bolt wheel has to have the thicker black "O" ring. Either front half can be used on either back half but of course it would be better to not mix them. Do you know about the centering washers? Wayne Walker

dunsbr · Post by **dunsbr** » Thu Mar 27, 2008 1:56 pm

Also, the shape of the O ring groove is markedly different between the two rim styles as the red O Ring is of a much smaller cross section compared to the old style black one.

Cheers

86humv · Post by **86humv** » Fri Mar 28, 2008 1:25 am

Here's both: Newer on bottom.

George Stojkos · Post by **George Stojkos** » Fri Mar 28, 2008 3:22 am

It`s all so clear now. Thanks to all.

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12 bolt rims

12 bolt rims

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