YJ frame Vs CJ 7 frame

[sicnik]

I am looking into buying a YJ frame/drivetrain, how does the YJ frame compare to the CJ7 frames? as far as durability etc....

 

[Wade]

most would say the yj a stronger frame. it has more crossmembers and it is a little wider.

 

[redrooster]

A YJ frame is square tube that is Mandrel bent. A CJ frame is two pieces of channel welded together and narrowed in some sections. CJ frames are prone to cracking over time under hard use.
See the other recent thread on this board about the differences in measurements between the two.