This 11 tooth speedometer drive unit includes an aluminum housing and gear as OEM replacement for transmission drive. Unit has 2:1 drive ratio. Speedometer drive unit features a hardened gear and measures 2.266 shoulder to gear end.
FITMENT
TECH NOTES
MEASURMENTS
ACCESSORY ITEMS
Tech Notes
Use with this combination for 2:1 ratio for 1941-1961 FL and