You can't completely leave the rear alone. Even with the front SUA, you'll have to lift the rear to match... just not as much as if it were SOA. Doesn't surprise me that people go leaves in the rear during a SAS with a lot of lift. Probably easier from a design standpoint to swap out the coils for leaves versus redoing all of the links (the stock links won't be long enough for a large amount of lift). But, no, there is no harm in having coils on one end and leaves on the other.

Sean Strawmyer
Back and ready to rock...... crawl.

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