This ReadyLIFT 4 inch rear block kit is for the 1999-2010 Ford F-250 and F-350 Super Duty with a one-piece driveshaft, single rear wheel only. The blocks are cast iron, based on OEM designs, and replace the factory 2 inch blocks. Longer E-coated U-bolts and hardware are included.
Key features
- Cast iron blocks based on OEM designs
- Integrated OEM-style bump stops
- Longer E-coated U-bolts and hardware included
- Replaces the factory 2 inch blocks
- Puts a slight rake in the truck for hauling or towing, and is meant to work with a ReadyLIFT leveling kit
What's included
- (2) 4 inch rear blocks
- (4) E-coated U-bolts
- (8) nuts and washers
Fitment and compatibility
- Fits 1999-2010 Ford F-250 and F-350 Super Duty, 2WD and 4WD, with a one-piece driveshaft
- Single rear wheel trucks only, not dual rear wheels
- Trucks with a two-piece driveshaft use separate listings (66-2294 / 66-2295)
- Not compatible with aftermarket or factory add-on air spring or load leveling kits that attach to the bump stop tangs. Doing so voids all block warranties and can cause bump stop tang failure
Specifications
- Brand: ReadyLIFT
- Part number: 66-2094
- Block thickness: 4 inch
- Material: Cast iron blocks, E-coated U-bolts
- Sold as: Kit
- Warranty: ReadyLIFT Limited Lifetime Warranty
- Estimated install time: 1.8 hours, plus or minus 0.5 hour
Installation
Allow about 1.8 hours, plus or minus 0.5, not counting alignment or wheel and tire assembly. ReadyLIFT recommends a certified mechanic. Plan on an alignment (may cost extra), check headlamp aim afterward, and note that driver-assist systems may need checking, sometimes with dealer tools. ReadyLIFT is not responsible for damage from improper installation.
Modifying your suspension can change handling and rollover risk (SAE J2492). California Prop 65 notice: the manufacturer lists DEHP.