Carli 2005+ Ford F250/350 4x4 Caster Shims

When lifting the front of a Super Duty 2.5" / 3.5", caster will be reduced by 1°. The 2° shim specified with Carli's 2.5" / 3.5" lift systems not only restores caster but increases it by 1° from the stock spec to ensure proper tracking with larger tires.

Carli's 4.5″ / 5.5" lift systems drop the radius arm pivot point 4.5" with a radius arm drop bracket to match the lift; thus, caster is maintained. Carli includes the 1° shim to increase caster 1° over stock for the above mentioned purpose.

Note: For 2023+ both 3.5" & 5.5" Systems use the 1° CAR-CS-FCASTERSHIM-45 part as both systems include radius arm drops. This is due to a change in an axle shaft mounted debris guard that limits repositioning of the ball joint with a caster shim.