Rubicon dana44 front axle
CF Veteran
Joined: Jan 2009
Posts: 2,740
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Year: 87
Model: Cherokee
Engine: 4.0
AS far as I know the super 30 kit only changes the inner shaft spline count. Unless you change the unit bearings you cant change the outer spline count.
With just about anu alloy shaft the d30 will and can live on 35's. If you upgrade to the 30 spline I believe 37's wil live happily.
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