This 3.25" tall "Tremor" block kit uses genuine Ford rear blocks from Tremor package trucks, along with our USA made, Zinc plated U bolts and hardware. This kit incudes everything you need to swap the rear of your 2017+ Ford F-250 or F-350 to the same height as a Ford Tremor while maintaining the stock leaf packs. These blocks are the perfect compliment to a 2.5" or 3.5" leveling kit if you find that the stock blocks are too low.
Starting in 2020, Ford lowered all non-Tremor trucks. To make things more confusing, Ford also specs different block heights depending on the trim of the truck, which means that sometimes a leveling kit causes the truck to sit rear low. These blocks are the answer.
Please note that these blocks are compatible with standard airbag kits that mount off the block "tang" but these blocks are NOT compatible with Carli long travel airbags or with Carli leaf packs.
These blocks are not dual rear wheel (dually) compatible.
Customer Reviews
The install was easy enough. The only thing I was dissatisfied with was the kit did not include a torque value for the u-bolts. Beyond that everything was great
These worked great for my 2021 F350 Lariat in combination with the Synergy/FOX leveling kit. It was a little front end high with the factory blocks which measure 2" inches. These blocks measure 3.25" and leveled the truck out perfectly. The U bolts are a little long and could be used easily with a 4" block.
CJC Built 2017+ Ford Super Duty 3.25" Rear Block Kit
Only thing that would have been better was if the u-bolts were black. They are super noticeable now since they are shiny galvanized looking.
Look good, hard to find and cjc has them!
