ZJ 3.73 gears into XJ hp dana 30??

You can bolt in the ZJ d30 axle assembly if you want
 
i started to type that up but i guess i never hit post.

yes, you can bolt the ZJ's low pinion 30 in, but its a downgrade in strength.

ZJ guys like to put our XJ dana 30's in as an upgrade.
 
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