Does one have advantage over the other.

 

Neither one is a very good option. AAL will sag rather quickly and blocks will kill your rear leaf springs. I would go with bastard packs, shackles or full packs. Just my 2 cents.

 

AAL will jar your teeth out.

 

shackles or full packs

 

ok i did blocks to level my sagging springs befor i lifted it bad idea i broke both bottom leafs and with 3 inch blocks it sagged worst then befor

 

they both suck

 

Blocks bad. AAL a little better, but won't last. Bastard Pack better. Full spring replacement best.

 

shackles will keep most of the original ride quality but blocks will ruin the ride quality

 

I got a ? for you guys I do know blocks suck on a jeep but I have blocks on my dakota and they haven't hurt the springs yet.On the xj I 'm thinking its just cause the springs suck that they are just a low qaulity spring pack.( blocks have been on the p/u for 5-6 years)

 

from what ive been told about blocks is not just the springs you have to worry about but you gotta consider axle wrap to

 

x2, I'll be getting a new pack, 1" shackles and a spring relocation....just gotta save the duckies for it