lowAZhoe
Resident GM Tech
Been there done it. do you have the djm trailing arm relocators and endlink kit??? if not will hit the swaybar against the panhard bracket.
In front you wont get it to align with drop keys so you will need the camber kit from belltech and press out upper bushings.
Rear cut 2 full loops and then slap in and remeasure that will drop it about 1.25 inches. YOu can cut more if needed there are about 4 loops that are dead when full weight is on the truck and only cut from the top. What I would do is cut 1.5 loops off the bat since the first pig tail coil is very small and then cut as needed.
For reference on look
Here is a customers truck
djm upper/lower a arms
front belltech sp shocks
rear belltech sp shocks
rear springs 5" drop
275 55 20 tires
32 9/16 rear from ground to fenderlip (no bumper in back of the truck)
My 6" springs would sit at 31.5-31.75 about
im at about 33" all around on 275/55/20 without rear 1" spacers. how would it be 31.5?