Back seat, maybe all. Head room is going to be tight, still plan to chop it.How much of the back seat to you think you will lose? What did you use for a fuel pump? Will you be using the Corvette style filter/regulator? Sorry for the questions .
thanks for this post, my problem has been fixed too.I was able to keep lots of my back seat, just had to narrow it but will still fit two back there. I used a TANKS tank in my build. Had to move the frame rails in for the tires then back out for the tank.
Here https://jeepequipment.com/best-shocks-for-jeep-xj-review you can know more information about shocks.