Tuff Country P/N 97073 block kit includes lift blocks and u-bolts designed to raise the rear of your Ford Truck. 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 Ford Truck are used to replace the factory u-bolts.
Details:

• Rear Block and U-Bolt Kit
• Lifts the rear of your vehicle 3.5 inches (Replaces factory block)
• Maintains a factory ride
• Custom made for the application
• Lift blocks are constructed of heavy duty cast iron
• Blocks are non-tapered
• Zinc plated corrosion resistant extended u-bolts
• Simple Bolt-on Installation
• Made In The USA
• Sold As A Kit

Fits:

• 2004-2008 Ford F150 4WD

Installation Notes:

• Designed for rear axles only. Never use lift blocks with a front axle
• Included 5 inch lift blocks replace the factory blocks 1.5 inch blocks
• On most applications factory length shocks must be replaced with extended length shocks when installing rear blocks 2 inches in height or taller

Tech Specs:

• Amount of Lift: 3.5 Inch Rear Lift (Replaces factory blocks)
• Blocks Tapered: No
• Lift Block Dimensions: 5 Inch H x 2.5 Inch W x 5.5 Inch L
• U-Bolt Dimensions: 9/16 Inch x 3 Inch x 14.625 Inch - Sqare
• Includes: 2) 5 Inch Cast Iron Lift Blocks, 4) Rear Axle U-bolts, 1) Hardware Bag (nuts and washers)