New improved impeller shaft Powerdyne BD-11A (round shaft). Lightest shaft out there.

• Cogged gear is tough Anodized Aluminum, with correct tooth form, like original, for less rotating mass instead of Others steel. Ours weighs only 6.70 oz. versus our competitors 10.50 oz. !!
• Others extra weight from aftermarket steel gear puts extra, unnecessary, load on your belt and impedes performance, due to the added rotational inertia from unneeded mass !
• Correct CNC HTD tooling for proper belt release.
• EXTRA row of vent holes to avoid 'belt float'.
• Improved belt retainers that will not fail like stock. 
• Available in stock 35mm width or 40mm width (with 40mm, some case machining required (email for details), 40mm Gates GT belt available also.

This shaft fits Powerdyne BD-550, BD-600, BD-10, BD-11, BD-11A,  Ford Motorsport, O2 Force BD-100,  B&M BD-12 superchargers, but if you have the triangular shaft now, you'll have to change to an impeller with round hole, available in other auction.

Please check our other auctions. If you need other Paxton, Powerdyne, Vortech, or any 'Other' Supercharger parts or Repair work, we offer Rebuild Services and Parts on other auctions. 

We strive for 100% Positive feedback. If you are dissatisfied for any reason, Please contact us before leaving feedback, so we can address any concerns, first !