5" Rear Block Kit - 73-91 GM 3/4 Ton Suburban

5" Rear Block Kit | Multiple Applications

Starting At*: $87 - $122
FREE Shipping on ALL ORDERS!*
*within the contiguous US; ground shipments only.
product details
Price*: $86.62
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

  • 1975-1986 Chevrolet K20
  • 1973-1974 Chevrolet K20 Pickup
  • 1973-1986 Chevrolet K20 Suburban
  • 1975-1978 GMC K25
  • 1975-1978 GMC K25 Suburban
  • 1973-1974 GMC K25/K2500 Pickup
  • 1973-1974 GMC K25/K2500 Suburban
  • 1979-1986 GMC K2500
  • 1979-1986 GMC K2500 Suburban
  • This is a 5” 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
6 Total
Jack K. Verified Buyer
22 September 2019
Easy to install
On 5" Rear Block Kit - 80-96 F-150 4WD
Kevin M. Verified Buyer
19 February 2018
Radius arm
Easy to install and looks great
On 5" Rear Block Kit-99-10 F250/F350 w/ 3 7/8" Axle Tube w/ Top Mounted Overloads
roberto i cordoba Verified Buyer
11 November 2016
good product thanks
good product thanks
On 5" Rear Block Kit - 99-06 GM 1500 PU/99-10 2500 PU & SUV
Steven W. Verified Buyer
1 May 2020
I didn't receive the correct ubolt and after a simple call, Terry clarified the mistake and sent the correct ones.
On 5" Rear Block Kit - 80-96 F-150 4WD
Logan S. Verified Buyer
22 January 2019
Fit well on my 02 f150 fx4
On 5" Rear Block Kit - 97-03 F-150 4WD
Robert F. Verified Buyer
30 January 2020
Product fit well and looks good
On 5" Rear Block Kit - 66-79 F-100/F-150 4WD