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ReadyLift 4" Rear Block Lift For 2017-2021 F-350/F-450 Dual Rear Wheel Diesel

Pricing: $179.95

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ReadyLIFT OEM-style rear block kits are now available for 2017-2021 Ford Super Duty F350/F450 DRW model specific applications. These 4.0" fabricated steel Rear Block Kits include two (2) rear blocks, billet drive line spacer, four (4) long e-coated u-bolts and eight (8) nuts and washers. Based on OEM designs and never made out of light weight extrusions, our 4" 2017-2021 Ford Super Duty Tapered Rear Blocks have Integrated OEM style bump stops. ReadyLIFT Block Kits will put a slight rake back in your truck for hauling or towing and are designed to work with your ReadyLIFT Suspension Leveling Kit. In fact, these blocks are the ideal Tow Package upgrade for not only for stock height vehicles but lifted or leveled trucks too! Like all ReadyLIFT products these block kits come with our Limited Lifetime Warranty.



  • Ideal for when more rear lift is required for towing or hauling
  • New 4" Tall Block Kit for 2017-2021 Ford Super Duty F350/F450 DRW Trucks.
  • OEM style cast iron construction that includes factory style bump stop landings and new longer U-bolts and hardware.



  • 2017-2021 Ford F-350 SuperDuty
  • 2017-2021 Ford F-450 SuperDuty



  • Fits Dual Rear Wheel Trucks ONLY
  • For use on Dually or Dually Rear Springs.
  • 66-2742 4" block is for use on 2017-2021 Ford F350/F450 Dually Super Duty 4WD trucks with 2-piece drive shaft. Lift height will vary depending on what factory block your truck has.
  • The lift blocks in this kit are not designed to work with aftermarket or factory add-on air spring/load leveling kits that attach to the bump stop tangs. Use of this type of air bag system will void all block warranties and can cause failure of the block bump stop tang.


  • 26-2742
  • 26-2742
  • ReadyLift
  • New

Shipping Information

  • Item Requires Shipping
  • 15.0 lbs.
  • FREE Ground Shipping

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