rear suspension drop ???

[Mrknight1932]

Hi anybody have any ideas about a rear drop on a 87' ext cab. Im goin to run street edge 3inch lowering leaf springs and a 4inch drop block with 15x10 inch wheels 195/50. Not sure if I have to redrill the shackles cuz I dont wanna do that. I JUST WANT LOW LOL. The front ima go with belltechs 10102c front shocks and play with my torsion bars. But not quite sure what the heck Ima do when it comes to getting rear shocks?? I was going with some belltechs 2209hh for the rear but not quite sure if they will fit. anybody out thir know what's what?? PLEASE HELP.