3" Rear Block Kit-99-10 F250/F350 w 3 7/8" Axle Tube w/out Top Mounted Overloads

3" Rear Block Kit | Multiple Applications

Starting At*: $65 - $82
FREE Shipping on ALL ORDERS!*
*within the contiguous US; ground shipments only.
Price*: $98.18 $78.54
FREE Shipping on ALL ORDERS!*
*within the contiguous US; ground shipments only.
Superlift's typical processing time for orders is 24-48 hours. If there is an unforeseen delay you will be notified immediately.
Find a Dealer CALL 800-551-4955
CALL 800-551-4955
Find a Dealer CALL 800-551-4955
CALL 800-551-4955

Your Selected Product Fits These Vehicles

  • 1999 Ford F-250
  • 2000-2004 Ford F-250 Super Duty
  • 2000-2004 Ford F-350 Super Duty
  • This is a 3ā€ rear lift block kit for specific models
What does it include?
  • 2 cast iron blocks, four u-bolts, all nuts and washers needed for installation
  • Detailed instruction manual walking you step-by-step through the lift kit installation procedures suitable for do-it-yourselfers (DIY) or professional installation

Superlift rear block kits help distribute the weight of your cargo and improve the towing performance of your truck. They'll also give your rear a little lift to bring it back to the proper ride height.

Superlift's block kits include two cast iron lift blocks and four U-bolts with factory type Hi-nuts and flat washers. The blocks are cast from Class 30 Gray Iron, the same material used by vehicle manufacturers for their spacer blocks. Our U-bolts are manufactured from low allow, high strength steel. The anti-corrosion finish is either Zinc or E-coat


  • Installation time: 1 hour
  • Difficulty level: 1 of 5
4 Total
jon malott Verified Buyer
19 December 2016
just what I needed!
just what I needed!
On 3" Rear Block Kit - 78-97 F-250 4WD
Phillip S. Verified Buyer
14 September 2018
Good quality and is was a eat install
On 3" Rear Block Kit - 73-91 GM 3/4 Ton Suburban
martin w. Verified Buyer
10 August 2017
Safety First
30 min install. Everything went according to plan.
On 3" Rear Block Kit - 99-06 GM 1500 PU/99-10 2500 PU & SUV
Taylor W. Verified Buyer
18 March 2019
Your blocks were tapered vs the stock ones being flat. Tapered blocks were not part of the product d... Read More
On 3" Rear Block Kit - 11-16 F-250/F-350 w/ Top Mounted Overloads