Lots of people don't want to pay 2100$ (inc drive shaft)for a superlift, which keeps your shitty IFS suspension.
I refuse to pay that kind of money for stacked blocks in the rear. For the high seas piracy that is, they should at least give you a whole new leaf pack set for rear lift.
It will still ride like ****, and you will have to pay MORE to convert your superlifted truck to coils up front.
If I was keeping my truck id be doing a SAS, but I actually wheel my truck on rocks so it makes sense. If you are only street driving and the odd muddy trail here and there a superlift is probably fine