Dana 30 - Inner and outer spline counts - JeepForum.com
 
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post #1 of 1 Old 06-06-2020, 11:49 PM Thread Starter
kevinsctx
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1983 CJ7 
 
Join Date: Dec 2010
Location: Dallas
Posts: 55
Dana 30 - Inner and outer spline counts

I have a 1983 CJ7 with a 2.73 Dana 30 in the front. I’m re-gearing it 4.54, installing an ARB air locker and upgrading the axles.

I understand 30 splines are stronger than 27, so I decided to go with a 30 spline ARB and chromoly axle to match.

But what about the outer axle spline count? Is it still 27 for the stock wheel hub assembly? Should a upgrade this to 30 splines as well? I can’t seem to locate a 30 spline wheel hub assembly for this 83 CJ7 so I’m guessing it remains 27 and the inner will be 30 splines for the ARB.

Does this sound correct?

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