Substitution CVD BB drive shaft 54mm created from world-renowned HUDY Spring steel. This race-quality drive shaft is an extra component for #305408 CVD BB Drive Shaft 54mm - Set - HUDY Spring Steel????. Recommended for found in high-traction conditions, and for tracks with numerous hairpin corners. Must be used with #304972 - Gear Diff CVD BB Driveshaft Outdrives. Pair of 2.