Impreza WRX STI F4-2.5L DOHC Turbo (2007)
6) Using the ST, loosen lock nut.
ST 926230000 SPANNER
7) Tighten the adjusting screw until it no longer tightens.
8) Using a wrench (32 mm width across flats) or adjustable wrench with cinching boot, remove the tie rod.
9) Loosen the adjusting screw, and then remove the spring and sleeve.
10) Clean the dirt of input shaft. Remove the dust cover taking care not to scratch the housing or input shaft and allow foreign matter to enter gear box
interior.