Pump extension uses a sealed ball bearing to allow the pump shaft to run concentric to the fuel pump giving the fuel pump a longer life and has a O-ringed sealing surface to seal against the gear drive cover. Backside of extension has a provision to set the cam thrust on the engine.
The extension uses the industry standard quick release fuel pump clamp and RBS offers quick release plates for the fuel pump. Extension length is 7.00" end to end and fits RCD SBC gear drives only.