I insatalled it on a 02 tahoe in 1 day. Me and 2 of my friends did it. I have plasma cutter,welder,lift,ect.. On my expedition it was real easy. I have a stock rear 2 link set up cause it takes coild in the back. I made a custom step notch that is 12" opening for the stock 2 link to lay down. In the front I used spindles,lowered control arms upper and lower and relocated the shocks.