Birfield Rebuild on Disk Brake Converted '75 FJ55

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I went to check my front pumpkin for oil level last week and found birf soup.

As the title says, I have a '75 FJ55 with a Classic Cruisers disk brake conversion.

I see that most suppliers list a different kit for '75 and earlier drum brake axles and '76 and later disk brake axles.

My instinct is to order the earlier kit, but figured I would check with the IH8Mud brain trust to be sure I'm doing the right thing.
 
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Aug 29, 2011
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Montana
Is that disc conversion using OEM stuff or some aftermarket stuff?

I'm not familiar with the Classic Cruisers disc swap.


I would guess that if it an OEM conversion you would be able to use the later rebuild kit.

A quick phone call to @cruiseroutfit may be the best option.
 

pb4ugo

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May 8, 2006
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spay-lay-wi-theepi, Ohio
I think it depends on whether you have coarse or fine spline Birfields. You can easily check by pulling a lockout and looking at the end of the birf.
 

jestlurnin

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Sep 27, 2008
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Portland, OR
I’ve done about 10 front axle rebuilds (absolutely not an expert) and I always replace wheel bearings while I’m in there. For me it’s always been a why the heck not situation. HTH
 

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