• 4" Block Kit for 2017-2021 Ford Super Duty F250 4WD
  • OEM style fabricated steel construction flat block with bump stop landing pads, drive line spacer and new longer u-bolts
  • For use with trucks with 2-piece drive shaft.

Kit Component:

  • (2) Flat rear lift blocks with drive line spacer,new longer u-bolts and nuts.

Note: 66-2741 4" block is for use on 2017-2021 Ford F250 Super Duty 4WD trucks with 2-piece drive shaft. Lift height will vary depending on what factory block your truck has.

NOTE: 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.

ReadyLIFT OEM-style rear block kits are now available for 2017-2021  Ford Super Duty model specific applications. These 4.0" fabricated steel Flat 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


  • 2017-2021 Ford F250 Super Duty



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