Substitution CVD BB drive shaft 54mm created from world-renowned HUDY Spring steel. This race-quality drive shaft is an additional component for #305408 CVD BB Drive Shaft 54mm - Set - HUDY Spring Steel????. appropriate within high-traction conditions, and for tracks with many hairpin corners. May be used with #304972 - Gear Diff CVD BB Driveshaft Outdrives. Number of 2.