80-04 Ford F-250/350 4x4 2" 3" 4" Rear Blocks

Sky's Rear Blocks now available in 2", 3", and 4" heights!

• Made tough from 3/8" thick steel right here in the USA these feature a captured u-bolt design that will keep the block from moving or getting spit out even under the most extreme circumstances. 
• 4" block is the same height as a stock F-350 
• Designed to use 3.5" - 4" U-bolts and 3" wide springs. 
• Spring pin holes to move axle 1" forward or back on the spring.
• Flat, with no taper and no bumpstop tang.