The bushing seals the oil galley, while the collar centers the rod and covers the hole.
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Oil Pump Primer Tool, Compatible with GM Chevy V6 V8 SBC 350 BBC 454 Small and B
The bushing seals the oil galley, while the collar centers the rod and covers the hole. UPGRADE DESIGN: Thick shaft design with triangle shaped end for no slippage. For use with 3/8″ or 1/2″ chuck hand drill.