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
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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?

kevinsctx is offline  

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