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4 Inch Rear Block & U-Bolt Kit 73-87 Chevy Truck/GMC Truck/73-91 Suburban/Tahoe/Jimmy 1/2 Ton 4WD Tuff Country

Manufacturer: Tuff Country
Manufacturer Part Number: 97006
Availability: Ships directly from supplier. Usually ships within 1-2 days, but may take longer.
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Tuff Country P/N 97006 block kit includes lift blocks and u-bolts designed to raise the rear of your GM Truck/SUV. Installation is done by inserting the cast lift blocks between the factory rear leaf springs and axle. Extended zinc plated rear u-bolts designed specifically for the GM Truck/SUV are use to replace the factory u-bolts.

  • Rear Block and U-Bolt Kit
  • Lifts the rear of your vehicle 4 inches
  • Maintains a factory ride
  • Custom made for the application
  • Lift blocks are constructed of heavy duty cast iron
  • Blocks are tapered to eliminate or reduce driveline vibration
  • Zinc plated corrosion resistant extended u-bolts
  • Simple Bolt-on Installation
  • Made In The USA
  • Sold As A Kit


  • 1973-1987 Chevrolet Truck 1/2 Ton 4WD
  • 1973-1991 Chevrolet Suburban 1/2 Ton 4WD
  • 1973-1991 Chevrolet Blazer 1/2 Ton 4WD
  • 1973-1987 GMC Truck 1/2 Ton 4WD
  • 1973-1991 GMC Suburban 1/2 Ton 4WD
  • 1973-1991 GMC Jimmy 1/2 Ton 4WD

Installation Notes:

  • On most applications factory length shocks must be replaced with extended length shocks when installing rear blocks 2 inches in height or taller
  • Designed for rear axles only. Never use lift blocks with a front axle

Tech Specs:

  • Amount of Lift: 4 Inches Rear Lift
  • Blocks Tapered: Yes
  • Lift Block Dimensions: 4 Inch H x 2.5 Inch W x 4.75 Inch L
  • U-Bolt Dimensions: 5/8 Inch x 3 Inch x 11.75 Inch - Round
  • Includes: 2) 4 Inch Cast Iron Lift Blocks, 4) Rear Axle U-bolts, 1) Hardware Bag (nuts and washers)
Products specifications
Country of OriginUSA
Sold AsKit
Number of Boxes1
U-Bolt Dims0.625 x 3 x 11.75 Inches
Lift Height4.75 Inch
MaterialCast Iron/Steel
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