i wanna lower my truck 4/6

i wanna lower my truck using a flip kit and spindles and coil springs. my truck has a 2 piece driveshaft do i need anything else?

Might need a carrier bearing spacer to help with the u-joint angles...check with the place you got your components from

i think its cheaper if u get the djm kit 4 inch drop control arms and the flip kit i also bought a carrier bearing bracket to adjust the pinion angle it was like 25 dls. oh and it rode real good.