front rear or posi lock?

[mousee]

I ran a lock right in my d35 for several years and beat the crap outta' it, with a 4.2L, and not even a groan from it.
If it was me, I would lock right the front and weld the rear.
Spool in the rear is a lot more predictable than locker. Now this is kinda speakin' outta' my ass on the front, 'cause I have not run a lock right in an xj front so... four outta' five voices in my head say it would work good...