The front springs under the Burb were flatter than an emaciated supermodel. I called up the square-body Chevy experts at Offroad Design and told them all about my project, the carpet stains, the too-tall Q78s, the lame running boards, and how I was sure this particular Suburban had been used to haul someone’s roadkill collection previously. They suggested a set of their 4-inch-lift front leaf springs. Cost: $336. $576 remaining in the build budget.