I USED Blocks out back,,schackles didnt do much,,,3inch,,,then a2 springs in front ,,but for extra, i cut and raised perch 2 inches up,,right side driveshaft willhit topof the control arm mount,,soyou may need a travel limiter ,,,theres still pics around of mine somewhere,,,i had sears 195-75 14 trailcrapper truck tires,but not without some cutting on front of front fender,and pinch weld hammering,,rear was okfor clearance,,,,,