Kryptonite KRFB25 Front Bump Stop Spacer Kit (For 2.5" Leveling Kit)Get the Kryptonite Front Bump Stop Spacer Kit (For 2. 5" Leveling Kit) KRFB25 to ensure proper bump stop placement on your Ford F250 F350 . When fine tuning the ride height of your Heavy Duty Truck, ensuring correct bump stop placement is crucial. Our precision billet spacer kit eliminates guesswork in limiting upward travel, offering a direct fit installation with premium zinc plated hardware. Backed by a lifetime guarantee. Features: Grade 10. 9