Depends on the mileage. My stock springs had zero sagging at 130,000 miles. My shocks were shot. Coil springs if they're sagging (12" front/8" rear coil length as it sits is stock height and longer shocks at a minimum. You could do 2" budget boost spacers ($80 all 4) and nothing else if it's for street use only and you don't want a Caddy ride. A much cheaper option is a 1.25" body lift for $95 and an hour of your time. Nothing else needed for 3/4" less lift and it doesn't effect your ride quality.
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