Maxtrac Suspension's 4" lift spindles allows for greater lift while maintaining OE steering geometry. This kit includes extended DOT approved brake lines, 2.5" strut spacers, carrier bearing spacers, 4" rear fabricated lift blocks with U-bolts and rear MaxTrac twin tube shocks. This is a simple bolt-on lift kit makes installation a breeze. SPECIFICATIONS P/N: 705340 Front Component Box - 4" Lift Spindles - Extended DOT Approved Brake Lines P/N: 905340 Rear Component Box - 2.5" Front Strut Spacers - Carrier Bearing Spacer - 4" Fabricated Lift Blocks - U-Bolts for the 4" blocks - MaxTrac rear shocks (2900LL) Wheel & Tire Fitment: - 17" Wheel or Larger with 5" Backspacing or less - Will clear a 35" tire with the correct wheel & tire combination. NOTE: - Prior to installation—measuring is required when selecting a wheel & tire combination. - Trimming may be required for optimal fender well clearance.