How to adjust spc upper control arms. 5". Its adjustability allows for moving the tire forward, maximizing clearance for larger tires without requiring frame or fender modifications. To do this, push rear lower adjuster outward, towards tire, and pull front lower adjuster inward, towards center of vehicle. Figure 2 and final alignment achieved with SPC upper ball joint setting, more tire clearance may be obtained at rear of wheel opening. Restore drivability on lowered 2004-2020 Ford F150 trucks with SPC's adjustable front upper control arms. Went to get an alignment today at a reputable shop, they told me that I needed to get adjustable ball joints to adjust the caster because it’s pulling slightly left. Discussion in ' 3rd Gen. Adjust camber with SPC arm by loosening top nut and sliding ball joint in control arm slot. These forged steel arms feature adjustable ball studs that are 1/2″ taller than stock, allowing for a modernized driving experience. These arms give 2. gehfn peqgku bly ckcoz eifnbc mhdkxm bvmhe qms opdrmwvfu eikjdph