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Find 6 Inch to 8 Inch Lift Kits for your F-350

ReadyLIFT 6-Inch Flat Rear Lift Block Kit for 2-Piece Driveshafts (17-18 4WD F-350 Super Duty)Find parts that fit my vehicle

Item SSD13412
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22 Reviews
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$199.95

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      Product Information

      Features, Description, Reviews, Q&A, Specs & Installation

      Features & Specs

      • Rear Lift Block Kit
      • Lifts Rear by 6 Inches
      • Improved Hauling and Towing Capabilities with Enhanced Handling
      • Fabricated Steel Blocks and E-Coated U-Bolts
      • With Billet Driveline Spacer
      • Heavy-Duty Construction
      • Sold as a Rear Kit
      • Bolt-On Installation
      • Carries a Limited Lifetime Warranty
      • Made in the USA
      • Fits 2017-2018 4WD Ford F-350 Super Duty Models

      Description

      Commanding Stance with Enhanced Performance. Upgrade to this ReadyLIFT 6-Inch Flat Rear Lift Block Kit for 2-Piece Driveshafts to boost your truck’s stance. Using this kit adds a 6-inch height to the rear of your Super Duty to prevent it from sagging low and causing unwanted towing problems.

      Long-Lasting Durability. This 6-Inch Flat Rear Lift Block Kit for 2-Piece Driveshafts consists of high-strength components. The rear blocks were crafted using fabricated steel with long-lasting structural integrity. These blocks are ideal tow package upgrade not only for stock height vehicles but also for lifted or leveled setup. Moreover, this kit comes with longer, e-coated U-bolts, a billet driveline spacer, and premium hardware for lasting functionality.

      Bolt-On Installation. Featuring a bolt-on, no-weld installation, this Rear Lift Block Kit for 2-Piece Driveshafts attaches to the factory mounting locations of your truck. Installation by a certified mechanic is highly recommended for safety and the best results.

      Lifetime Warranty. ReadyLIFT backs this 6-Inch Flat Rear Lift Block Kit with a Lifetime Warranty against manufacturing defects in materials and workmanship. Some exclusions may apply; please check the terms and conditions for full details.

      Application. This ReadyLIFT 6-Inch Flat Rear Lift Block Kit for 2-Piece Driveshafts is specifically designed to be used on all 2017 to 2018 4WD Ford F-350 Super Duty models.

      Application Notes:.

      • 66-2761 6" block is for use on 2017-2024 Ford F250 Super Duty 4WD trucks with 2-piece drive shaft. Lift height will vary depending on what factory block your truck has.
      • Not for use on 2019-2024 F350.
      • 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.

      Fitment:

      Details

      ReadyLIFT 66-2761

      CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

      Installation & What's in the Box

      Installation Info

      Installation Time

      (approx) 2 Hours

      Difficulty Level:

      Light to Moderate mechanical skill required.

      Installation Guides

        No guide available for this part yet.

      What's in the Box

      • (2) Lift Blocks
      • (4) U-Bolts
      • (1) Driveline Spacer
      • Installation Hardware
      5.0

      Customer Reviews (22)

      Review Summary

      5 out of 5 overall ratings from 22 customers

      Mar 1, 2025

      Review shared from ReadyLIFT 3-Inch Rear Lift Block Kit (04-20 4WD F-150, Excluding Raptor)

      5
      2013 Platinum -
      Installation Time: Shop Install

      ReadyLift 3 inch Block for Rear lift

      I just had a front 2in eibach front lifted strut installed concurrently with this ReadyLift 3in block this week. The truck looks GREAT ?? The reason I chose these blocks was because I wanted to maintain some rake when lifting the truck, and it added around 1.5inches to the rear. I added some rear 0-2in rear fox adventure shocks last year, which I'm glad to say work great with the blocks, and I am now able to take advantage of the extra shock travel.

      Handling 5/5
      Offroad Ride Quality 5/5
      Fit 5/5
      Quality 5/5
      Bang For Your Buck 5/5
      Onroad Ride Quality 5/5

      Jan 5, 2025

      Review shared from ReadyLIFT 5-Inch Tapered Rear Lift Block Kit for 1-Piece Driveshafts (17-25 F-250 Super Duty)

      5
      2017 Lariat - EricMiller
      Installation Time: Afternoon

      2017 Ford F250 5 inch rear blocks

      After adding a 2.5 leveling kit these blocks gave me back the rake I was looking for. Easy installation.

      Handling 5/5
      Offroad Ride Quality 5/5
      Onroad Ride Quality 5/5
      Fit 5/5
      Quality 5/5
      Bang For Your Buck 0/5

      Jul 8, 2024

      Review shared from ReadyLIFT 4-Inch Rear Lift Block Kit (14-18 Silverado 1500)

      5
      2017 LT - SupRman2
      Installation Time: Afternoon

      Raised just a touch

      I wanted to raise the truck just a bit, so I put a leveling kit on. Wasn't happy with the look. So, I installed a 4" lift for the rear. Now the look is just as I wanted.

      Handling 5/5
      Offroad Ride Quality 5/5
      Fit 5/5
      Quality 5/5
      Bang For Your Buck 5/5
      Onroad Ride Quality 5/5

      Dec 5, 2023

      Review shared from ReadyLIFT 4-Inch Flat Rear Lift Block Kit for 2-Piece Driveshafts (17-25 F-250 Super Duty)

      5
      2020 Lariat - LStar

      Fit as expected

      Works perfect for 2020 f250 6.7, just got to cut excess length for Ubolts after install

      Handling 5/5
      Offroad Ride Quality 5/5
      Onroad Ride Quality 5/5
      Fit 5/5
      Quality 5/5
      Bang For Your Buck 5/5

      Sep 26, 2023

      Review shared from ReadyLIFT 5-Inch Tapered Rear Lift Block Kit for 1-Piece Driveshafts (17-25 F-250 Super Duty)

      5
      Faqsomethin
      Installation Time: Less than 1 Hour

      Sturdy

      Pretty sturdy piece of block U-Bolts as well but too long if you are only using a 5 inch block, I had to cut mines to be able to use a long socket

      Handling 5/5
      Offroad Ride Quality 5/5
      Onroad Ride Quality 5/5
      Fit 5/5
      Quality 5/5
      Bang For Your Buck 5/5

      Sep 11, 2023

      Review shared from ReadyLIFT 1-Inch Rear Lift Block Kit (19-25 4WD Ranger, Excluding Raptor)

      5
      2022 Lariat - Nick3392
      Installation Time: Afternoon

      Look great

      Relatively easy to install and looks great. Added some rake back into the truck after a 2 inch level on the front

      Handling 0/5
      Offroad Ride Quality 0/5
      Onroad Ride Quality 0/5
      Fit 0/5
      Quality 0/5
      Bang For Your Buck 0/5

      Sep 11, 2023

      Review shared from ReadyLIFT 3-Inch Rear Lift Block Kit (04-20 4WD F-150, Excluding Raptor)

      5
      2019 XLT - GrayWolf
      Installation Time: Shop Install

      Worked as expected

      Had it installed by local shop and brought back some of the factory rake…trucks sits level now when towing my 4000 pound trailer.

      Handling 0/5
      Offroad Ride Quality 0/5
      Onroad Ride Quality 0/5
      Fit 0/5
      Quality 0/5
      Bang For Your Buck 0/5

      May 15, 2023

      Review shared from ReadyLIFT 2.25-Inch Rear Block Lift Kit (07-18 Sierra 1500)

      5
      Ackman70
      Installation Time: Less than 1 Hour

      Perfect!

      I had already installed the Bilstein leveling struts at the highest setting and lost all the rake the truck had. In my case, the nose looked higher than the rear. These lift blocks were the ticket! Great quality and easy install.

      Handling 5/5
      Onroad Ride Quality 5/5
      Fit 5/5
      Quality 5/5
      Bang For Your Buck 5/5
      Offroad Ride Quality 5/5

      May 4, 2023

      Review shared from ReadyLIFT 2.25-Inch Rear Block Lift Kit (07-18 Sierra 1500)

      5
      2014 Denali - Dustin870

      Easy Install

      Gave my truck the perfect stance after pairing with RC 2” leveling struts. I’ve now got just under an inch of rake. Easy to install and no cutting required.

      Handling 0/5
      Offroad Ride Quality 0/5
      Onroad Ride Quality 0/5
      Fit 0/5
      Quality 0/5
      Bang For Your Buck 0/5

      Nov 13, 2022

      Review shared from ReadyLIFT 4-Inch Tapered Rear Lift Block Kit for 1-Piece Driveshafts (17-25 F-250 Super Duty)

      4
      PawpawW
      Installation Time: Afternoon

      Good blocks

      Blocks are good quality, the u bolts are not as strong or as large as the stock ford u bolts. Otherwise, good product so far

      Handling 0/5
      Offroad Ride Quality 0/5
      Onroad Ride Quality 0/5
      Fit 0/5
      Quality 0/5
      Bang For Your Buck 0/5

      Questions & Answers

      No questions about this product yet. Ask the First Question

      Will It Fit My F-350

      • 6.2L V8 - 17, 18
      • 6.7L V8 Power-Stroke - 17, 18

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