how do i lift rear end of 1994 cadilac deville to put 20 in. rims on

riser kit

is rearend lower than the front,if so,their is a switch in trunk,right or passenger side that needs to be turned off before raiseing the rear,car has air susespisition,if not turned off will blow it.as for the 20,sif everything is working right you should be able to just put them on.when car is let down turn switch back on.

u can buy twist in spring spacers at an autoparts store put those in and u can cut the auto level linkage and extend them slightly using a peice of welding rod or somthing similar with a couple zip ties on top and bottom spacers will get u up extending linkage will keep air in ur airshocks for ride