1.5" Rear Block Kit - 73-87 GM 1/2 Ton PU & 73-91 Suburban/Jimmy/Blazer

1.5" Rear Block Kit | Multiple Applications

Starting At*: $64 - $120
FREE Shipping on ALL ORDERS!*
*within the contiguous US; ground shipments only.
Price*: $63.99
FREE Shipping on ALL ORDERS!*
*within the contiguous US; ground shipments only.
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

  • 1973-1974 Chevrolet Blazer
  • 1987-1991 Chevrolet Blazer
  • 1975-1986 Chevrolet K10
  • 1973-1974 Chevrolet K10 Pickup
  • 1973-1986 Chevrolet K10 Suburban
  • 1975-1986 Chevrolet K5 Blazer
  • 1973-1991 GMC Jimmy
  • 1975-1978 GMC K15
  • 1975-1978 GMC K15 Suburban
  • 1973-1974 GMC K15/K1500 Pickup
  • 1973-1974 GMC K15/K1500 Suburban
  • 1979-1986 GMC K1500
  • 1979-1986 GMC K1500 Suburban
What is this?View Complete Details
  • This is a 1.5” 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
9 Total
John S. Verified Buyer
4 May 2021
Perfect for leveling
Robert G. Verified Buyer
10 June 2019
Good stuff
Good quality blocks. Simple install. Good price point. Great customer support when I had a question about what to order.
Derrek Wallace Verified Buyer
16 March 2017
great easy site
great easy site
Craig Young Verified Buyer
15 November 2016
Superlift has gained a life
Superlift has gained a life long customer! Thank you Superlift!!
orlando l. Verified Buyer
27 June 2021
Great quality, Great fit
Lift blocks fit great, and were very easy to install only difficulty I had was on the removal of my old block nothing to do with new blocks
Garrett M. Verified Buyer
29 June 2021
Great value!
Super lift sells the entire kit for less money than other company’s want just for the blocks. Can’t beat the price and reputation.
Jerry T. Verified Buyer
27 December 2017
Great price
Blocks are narrow but work well
ivan c. Verified Buyer
11 September 2021
Great quality, extra work required
The pin in the block was way too big and I had to grind them down to make them fit in the leaf spring holes. It was very time consuming by hand so I had to use a grinder in the end to do it faster
Eric R. Verified Buyer
5 May 2020
Lift blocks
I am happy with it but the nuts are the wrong size and would not fit the u bolts provided. Thankfully, I was able to use the factory bolts otherwise I would have had a major project. Other than that, the blocks seemed a little skinny but I’m am satisfied otherwise.