Brinn 73018 Transmission Steel Drive Flange SBC Small Block Chevy w/ 2 Piece Rear Seal


  • For 1955-85 SBC engines with 2-piece rear seal
  • 4140 Steel construction
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SKU: BRI73018 Category:

Since 1988 Brinn Inc. has been a leader in the design and manufacture of various components for the racing and aftermarket automotive industries. Brinn takes pride in being a forerunner of performance, quality, reliability, and innovation.

Brinn crankshaft drive flanges are specifically designed to direct-drive your Brinn transmission to the crankshaft. They are available in both steel and aluminum. The steel versions are manufactured from through-hardened 4140 steel for increased strength and durability.


Manufacturer Part Number


Brinn Transmission Steel Drive Flange – SBC

For 1955-1985 Small Block Chevy engines with 2-piece rear seal crankshaft.

Prop65WARNING: These auto parts can expose you to chemicals including phthalates and lead. Installing or using these parts can expose you to other parts containing these chemicals and to engine exhaust, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to