CT0381 - Everything needed to completely up and secure your two inch speedo housing on your TH350 Transmission, 1969 & up. Includes outer oring, inside seal and spring retaining clip to stop leaking at your speedometer housing. Also included is a speedo retainer bracket with metric and non metric bolts and lock washer to secure the housing in place. This kit fits two inch speedo housings typically found on BOP th350 transmissions. If your hole in tail housing is 7/8 inch hole, then this retainer set will not work.