80-04 Ford F-250/350 4x4 5" & 6" Rear Block/Ubolt Kits

Sky Manufacturing F-350 4x4 5" and 6" Block/Ubolt Kit

What It Does: 

This rear block lift kit replaces the factory F-350 4" block, providing you with 2" of extra lift. The blocks are machined with a 4* taper to aid in drive line angle correction. Blocks are built to mimic factory blocks bump stop leg. These blocks have a captured U-bolt design to keep bolts from possibly spreading on the axle and have multiple spring pin positions. 5/8" pin.

Designed for the 92-97 OBS trucks, but will fit most every application using a 3" wide spring and a 3.5" axle tube. WE have also used them on the older trucks with a 3.125 axle tube. This can be 78 up through the leaf sprung Super Duty.

Blocks will fit F-250 as well and will provide 3" lift.

Generally we use these blocks to level out trucks with our 4" Ford shackle reversal using 99-04 Super duty springs. They can also be used for lifting trucks with the 3" front.

Blocks are 3/8ths laser cut PO steel top and bottom plate, with laser cut, cnc formed tig welded center "block". Bump stop tabs are laser cut cnc formed 1/4 PO steel.