ST Racing Concepts STC7921B Aluminum Steering Knuckle for SC10, T4 and B4 (Blue) This knuckle is for original SC10/T4/B4 non-inboard bearing type front suspension For SC10RS and AE vehicles that have been converted to inboard bearing; please order STC9880 series knuckles Anodized to match our current line of option parts The front bearings are inside the wheel and not in the knuckle